Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of November 17 - 21

Monday, November 17

3:30 INVITED STATISTICS SEMINAR  - Room 459 MSC
Lev Klebanov, BGSU and St. Petersburg State University
for Architecture and Civil Engineering
Model Construction in Statistical Estimation Theory

Tuesday, November 18

11:30 ALGEBRA SEMINAR  - Room 447 MSC
Sergey Shpectorov, Dept. of Mathematics and Statistics, BGSU.
"A new cover of the 3-local geometry of the Co_1 sporadic
simple group"

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Kit Chan, Dept. of Mathematics and Statistics, BGSU.
"An elementary property of Schauder bases"
Abstract: I present a well-known necessary and sufficient
condition for a sequence in a Banach space to be a Schauder
basis.

3:30 DEPARTMENT MEETING  - Room 459 MSC
Discussion and possible approval of proposed tenure/promotion
document.

Wednesday, November 19

11:30 APPLIED STATISTICS AND OPERATIONS RESEARCH GUEST LECTURE SERIES
Ashwini K. Mathur, SmithKline Beecham Pharmaceuticals
"Quantification of statistical strength for non-linear models:
generalizations of correlations and risk measures"

3:30 INVITED STATISTICS SEMINAR  - Room 459 MSC
Lev Klebanov, BGSU and St. Petersburg State University
for Architecture and Civil Engineering
Model Construction in Statistical Estimation Theory

Thursday, November 20

3:30 SCIENTIFIC COMPUTING SEMINAR  - Room 459 MSC
Daria Filippova, Dept. of Mathematics and Statistics, BGSU.
"Numerical simulation of a relativistic ion beam"

Friday, November 21

3:30 Coffee
3:45 COLLOQUIUM  - Room 459 MSC
Ron Solomon, The Ohio State University
"Finite Simple Groups:  Past, Present, Future"
Abstract: Gorenstein called the Finite Simple Group
Classification endeavor "the Thirty Years' War". Measuring
from the inception of the problem in the work of Holder and
Burnside to its final resolution, the "Hundred Years' War"
would be a better name, though the period of most focussed
activity was the early 1950's through the early 1980's. This
talk will briefly discuss the formulation of the problem and
the important work of the 1890's, then attempt to give a
picture of the logical structure and principal methods of the
proof and finally say a few words about current activity
related to a possible alternate proof and interesting related
structures.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of November 24 - 25

Tuesday, November 25

11:30 ALGEBRA SEMINAR  - Room 447 MSC
Valeri Kopytov, University of Novosibirsk
"Semilinear ordered groups"

HAPPY THANKSGIVING!

No colloquium this week.

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of December 1 - 5

Tuesday, December 2

11:30 ALGEBRA SEMINAR  - Room 447 MSC
Sergey Shpectorov, Dept. of Mathematics and Statistics, BGSU.
"A new cover of the 3-local geometry of the Co_1 sporadic
simple group"

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Tom Hinrichs, Dept. of Mathematics and Statistics, BGSU.
"The evolution of the proofs of the Fundamental Theorem of
Algebra from d'Alembert to Liouville"

Wednesday, December 3

3:30 INVITED STATISTICS SEMINAR  - Room 459 MSC
Lev Klebanov, BGSU and St. Petersburg State University
for Architecture and Civil Engineering
Model Construction in Statistical Estimation Theory

6:00 KME EVENT  - Room 330 MSC
David Meel, Dept. of Mathematics and Statistics, BGSU.
"Mathematical Assessment:  Kids say the most interesting things"

Pizza and pop will be provided after the talk.

Thursday, December 4

3:30 SCIENTIFIC COMPUTING SEMINAR  - Room 459 MSC
To be announced.

Friday, December 5

3:30 Coffee
3:45 COLLOQUIUM  - Room 459 MSC
John Anderson, College of the Holy Cross
"Some ideas in geometric function theory of several complex variables"
Abstract: In recent years celebrated theorems of classical
geometric function theory, such as the growth and distortion
theorems and the Koebe 1/4-theorem, have been generalized to
certain classes of biholomorphic mappings of the unit ball in
C^n.  We will survey some of these results, explain a few of
the ideas in their proofs, and discuss some open questions
concerning the boundary behavior of these mappings.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of December 8 - 12

Monday, December 8

3:30 INVITED STATISTICS SEMINAR  - Room 459 MSC
Lev Klebanov, BGSU and St. Petersburg State University
for Architecture and Civil Engineering
Model Construction in Statistical Estimation Theory

Tuesday, December 9

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Tom Hinrichs, Dept. of Mathematics and Statistics, BGSU.
"Laplace, Lagrange, Gauss, and the Fundamental Theorem of
Algebra at the end of the century (That is the eighteenth
century, of course)"
Abstract: D'Alembert and Euler attempted proofs of the
Fundamental Theorem of Algebra (FTA) in 1746 and 1749
respectively.  The key to d'Alembert's proof was a
proposition: if p(z) is a polynomial function and p(z) is not
zero, then any neighborhood of z contains a point w such that
the absolute value of p(w) is less than the absolute value of
p(z). In 1795 Laplace supplied a proof that followed Euler's
algebraic proof. In 1798 Lagrange wrote a summary of the
eighteenth century proofs of the FTA. In 1799 Gauss published
his dissertation in which he critiqued previous attempts at
proof of the FTA and then supplied his first proof that
depended upon the topology of algebraic curves. Thus, Gauss
began a new method of proof for the FTA.

3:30 FACULTY MEETING  - Room 459 MSC

No colloquium this week.  Next colloquium will be January 16, 1998.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of December 15 - 19

Monday, December 15

3:30 INVITED STATISTICS SEMINAR  - Room 459 MSC
Lev Klebanov, BGSU and St. Petersburg State University
for Architecture and Civil Engineering
Model Construction in Statistical Estimation Theory

Tuesday, December 16

3:30 FACULTY MEETING  - Room 459 MSC
Meeting with Dean Cranny and Provost Middleton

No colloquium this week.  Next colloquium will be January 16, 1998.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of January 12 - 16

Wednesday, January 14

3:30 STATISTICS SEMINAR  - Room 459 MSC
Organizational meeting for seminar by Dr. Jiahua Chen from
the Department of Statistics and Actuarial Science at the
University of Waterloo.

Friday, January 16

3:30 Coffee
3:45 COLLOQUIUM  - Room 459 MSC
Josef Blass, Dept. of Mathematics and Statistics, BGSU.
"Black-Scholes Formula"
Abstract:  In 1972 Fischer Black and Myron Scholes developed a
formula for the valuation of option prices.

Remarkably the mathematics of the proof is considered by many
as one of the greatest discoveries of twentieth century
economics.  In the fall of 1997 Robert Merton and Myron
Scholes shared the Nobel Prize in Economics for their
contribution to option pricing.

In this talk, we will give insight into the formula involving
discrete, continuous, and finally stochastic approaches to the
valuation of contingent liabilities.

AMS web page on the Nobel award
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of January 19 - 23

Tuesday, January 20

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC

4:30 STATISTICS SEMINAR SERIES - Room 459 MSC
Jiahua Chen, University of Waterloo, visiting BGSU this semester
"Empirical Likelihood Methods"
This is the first in a series of talks.
The regular meeting time will be Mondays at 3:30.

Thursday, January 22

1:00 STATISTICAL COMPUTING SEMINAR  - Room 459 MSC
Jim Albert, Dept. of Mathematics and Statistics, BGSU.
"Likelihood Inference"

Friday, January 23

3:30 Coffee
3:45 COLLOQUIUM  - Room 459 MSC
Jon Hall, Michigan State University
"Steiner triple systems, Moufang loops, and 3-transposition groups"

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of January 26 - 30

Monday, January 26

10:30 GRADUATE STUDENT SEMINAR  - Room 459 MSC
Organizational meeting.  Contact Norm Preston (npresto@BGNet)

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Barbara Moses, Dept. of Mathematics and Statistics, BGSU.
"What is constructivism?  How does student learning improve by
using a constructivist approach?"

2:30 ALGEBRA SEMINAR  - Room 447 MSC
Curt Bennett, Dept. of Mathematics and Statistics, BGSU.
"Buildings: an introduction"

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Alex Izzo, Dept. of Mathematics and Statistics, BGSU.
"The d-bar equation"

3:30 STATISTICS SEMINAR SERIES  - Room 459 MSC
Jiahua Chen, University of Waterloo, visiting BGSU this semester
"Empirical Likelihood Methods"

Tuesday, January 27

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC
Gordon Wade, Dept. of Mathematics and Statistics, BGSU.

2:30 MAPLE WORKSHOP  - Scientific Computing Lab, MSC
John Gresser, Dept. of Mathematics and Statistics, BGSU.
After the usual start up issues (meeting time, format, etc.)
I'll give a quick lecture on Maple basics to start things off.

Wednesday, January 28

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Barbara Moses, Dept. of Mathematics and Statistics, BGSU.
"What is constructivism?  How does student learning improve by
using a constructivist approach?"

8:00 GUEST SPEAKER  - Room 459 MSC
Piotr Gasiewski, Price Waterhouse LLP

Thursday, January 29

1:00 STATISTICAL COMPUTING SEMINAR  - Room 459 MSC
Jim Albert, Dept. of Mathematics and Statistics, BGSU.
"Likelihood Inference"

Friday, January 30

3:30 Coffee
3:45 COLLOQUIUM  - Room 459 MSC
Jiahua Chen, University of Waterloo, visiting BGSU this semester
"Biases and variances of survey estimators based on nearest-neighbor
imputation"
Abstract: Nearest neighbor imputation is one of the hot deck
methods used to compensate for nonresponse in sample surveys.
Although it has a long history of application, theoretical
properties of the nearest neighbor imputation method are
unknown.  In this paper we show that under some conditions,
the nearest neighbor imputation method provides asymptotically
unbiased and consistent estimators of functions of population
means and totals, and population distributions and quantiles.
We also derive the asymptotic variances for estimators based
on nearest neighbor imputation and consistent estimators of
these asymptotic variances.  Some simulation results show that
the estimators based on nearest neighbor imputation and the
proposed variance estimators have good performances.

Joint work with Jun Shao, University of Wisconsin
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of February 2 - 6, 1998

Monday, February 2

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Barbara Moses, Dept. of Mathematics and Statistics, BGSU.

2:30 ALGEBRA SEMINAR  - Room 447 MSC
Curt Bennett, Dept. of Mathematics and Statistics, BGSU.
"Buildings: an introduction"

3:30 STATISTICS SEMINAR SERIES  - Room 459 MSC
Jiahua Chen, University of Waterloo, visiting BGSU this semester
"Empirical Likelihood Methods"

Tuesday, February 3

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC
Gordon Wade, Dept. of Mathematics and Statistics, BGSU.
"Introduction to dynamical systems"

2:30 MAPLE WORKSHOP  - Scientific Computing Lab, MSC
John Gresser, Dept. of Mathematics and Statistics, BGSU.
A short sequel to our observation last week about algebraic
numbers will be offered.  Then, as promised, new Maple
commands will be discussed, in the context of mathematical
examples you can bring to a calculus class.  Examples will
cover differentiation, graphing, implicit differentiation, and
integration.  Our point of view in a classroom should be
mathematics, not software.

3:30 FACULTY MEETING  - Room 459 MSC
Discussion of the proposed Math 417 and the department's hiring plans

6:00 KME EVENT  - Room 459 MSC
Craig Zirbel, Dept. of Mathematics and Statistics, BGSU.
"Optimal stopping of Markov chains, or, How to play blackjack"
Snacks will be provided.

Wednesday, February 4

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Barbara Moses, Dept. of Mathematics and Statistics, BGSU.

Thursday, February 5

1:00 STATISTICAL COMPUTING SEMINAR  - Room 459 MSC
Jim Albert, Dept. of Mathematics and Statistics, BGSU.
"The EM algorithm"

Friday, February 6

3:30 Coffee
3:45 COLLOQUIUM  - Room 459 MSC
Christian Hirsch, Western Michigan University
"Emerging secondary school mathematics curricula and their
Abstract: The Core-Plus Mathematics Project(CPMP) is one of four
comprehensive curriculum development projects that were
awarded grants from the National Science Foundation to design,
evaluate, and disseminate innovative high school curricula
that interpret and implement the NCTM Standards. An overview
of the design, implementation, and evaluation of the CPMP
curriculum will be provided and the implications for placement
in, and teaching of, beginning undergraduate mathematics
courses will be examined. Implications for pre-service
preparation of high school mathematics will also be addressed
as time permits.

Mathematics Education majors and graduate students are especially
invited to attend.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of February 9 - 13, 1998

Monday, February 9

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Barbara Moses, Dept. of Mathematics and Statistics, BGSU.
"Practical applications of constructivism in the mathematics
classroom"

2:30 ALGEBRA SEMINAR  - Room 447 MSC
Curt Bennett, Dept. of Mathematics and Statistics, BGSU.
"Buildings: an introduction"

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Alex Izzo, Dept. of Mathematics and Statistics, BGSU.
"More on the d-bar equation"

3:30 STATISTICS SEMINAR SERIES  - Room 459 MSC
Jiahua Chen, University of Waterloo, visiting BGSU this semester
"Empirical Likelihood Methods"

Tuesday, February 10

10:30 GRADUATE STUDENT SEMINAR  - Room MSC 459
Norm Preston, Dept. of Mathematics and Statistics, BGSU.
"An approximation theory approach to estimating probability
density functions"
Abstract: In approximation theory, a function is estimated by a
linear combination of basis functions.  Let X_1, X_2, ..., X_n
be a random sample taken from a probability density function
f.  The goal of this talk is to use approximation theory to
estimate this probability density function.

Everybody is welcome to attend.

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC
So-Hsiang Chou, Dept. of Mathematics and Statistics, BGSU.
"Linearized stability analysis for nonlinear systems"

2:30 MAPLE WORKSHOP  - Scientific Computing Lab, MSC
John Gresser, Dept. of Mathematics and Statistics, BGSU.

3:30 FACULTY MEETING  - Room 459 MSC
Discussion of the department's hiring plans

Wednesday, February 11

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Barbara Moses, Dept. of Mathematics and Statistics, BGSU.

Thursday, February 12

1:00 STATISTICAL COMPUTING SEMINAR  - Room 459 MSC
Jim Albert, Dept. of Mathematics and Statistics, BGSU.
"Numerical integration"

Friday, February 13

3:30 Coffee
3:45 COLLOQUIUM  - Room 459 MSC
J. G. Wade, Dept. of Mathematics and Statistics, BGSU.
"Preconditioned iterative methods for regularized inverse problems"
Abstract: We shall consider numerical methods for solving
semidefinite least-squares formulations of illposed inverse
problems, with total variation (TV) regularization. TV
regularization entails adding a term to the least-squares
objective functional which penalizes total variation of the
solution; this term formally appears as (a scalar times) the

The advantage of this regularization is that it improves the
conditioning of the optimization problem while not
penalizing discontinuities in the solution, which is
important in applications. This approach has enjoyed
significant success in image denoising and deblurring, laser
interferometry, electrical tomography, and estimation of
permeabilities in porous media flow models.

The main drawback with TV regularization is that with it, the
optimization problem becomes nonquadratic, so that
mathematical and numerical analysis are both more involved. In
particular, the first-order necessary condition for minimizers
(e.g., "setting the first variation equal to zero") yields a
nonlinear integro-partial differential equation.

In this talk the following will be described:

(i) least-squares inverse problems and some interesting examples,
(ii) the importance of regularization in general and of TV
regularization in particular, and
(iii) the current state of numerical methodology for efficient
treatment of these problems.

Numerical results will be presented.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of February 16 - 20, 1998

Monday, February 16

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Barbara Moses, Dept. of Mathematics and Statistics, BGSU.
"Constructivist classrooms:  Are they meaningful in mathematics?"

2:30 ALGEBRA SEMINAR  - Room 447 MSC
Curt Bennett, Dept. of Mathematics and Statistics, BGSU.
"Buildings and BN-pairs"

3:30 STATISTICS SEMINAR SERIES  - Room 459 MSC
Jiahua Chen, University of Waterloo, visiting BGSU this semester
"Empirical Likelihood Methods"

Tuesday, February 17

10:30 GRADUATE STUDENT SEMINAR  - Room MSC 459
Asoka Ramanayake, Dept. of Mathematics and Statistics, BGSU.
"Epidemic Change for the Exponential Distribution"
Abstract: Consider a sequence of independent random variables
that are susceptible to changing their distribution at unknown
instances.  In such a situation, it is of interest to test if
such changes have occurred or not.  And if such changes have
occurred, we would like to detect the locations of these
changes.  This is what is commonly known as the change-point
problem.  These change-point problems have many applications.
Quality control procedures, certain medical studies,
segmentation of speech, would be just a sampling of the many
possible application areas.

This work addresses the epidemic model. A sequence of
independent exponential random variables is hypothesized to
have equal means, and we would like to test whether the means
have been subjected to an epidemic change after an unknown
point, for an unknown duration in the sequence.  The
likelihood ratio statistic and a likelihood ratio type
statistic are derived.  The distribution theories and related
properties of the test statistics are discussed.  Percentage
points and powers of the tests are tabulated for selected
values of the parameters.  The powers of these two tests are
then compared to the two statistics proposed by Aly and
Bouzar.

Everybody is welcome to attend.

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC
Samantha Gedeon, Dept. of Mathematics and Statistics, BGSU.
"Analysis of Nonlinear BVP via Phase Plane Techniques"

2:30 MAPLE WORKSHOP  - Scientific Computing Lab, MSC
John Gresser, Dept. of Mathematics and Statistics, BGSU.

Wednesday, February 18

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Barbara Moses, Dept. of Mathematics and Statistics, BGSU.
"Constructivist classrooms:  Are they meaningful in mathematics?"

Thursday, February 19

1:00 STATISTICAL COMPUTING SEMINAR  - Room 459 MSC
Jim Albert, Dept. of Mathematics and Statistics, BGSU.
"Basics of Simulation"

Friday, February 20

3:30 Coffee
3:45 COLLOQUIUM  - Room 459 MSC
Tze Chien Sun, Wayne State University
"Limit Theorems for Processes with Long Range Dependence"
Abstract: First I shall define a process with long range
dependence.  Then I shall discuss the difference between the
limit theorems for processes with and without long range
dependence, and give a survey of recent results in this
area. If time allows I shall talk about some applications.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of February 23 - 27, 1998

Monday, February 23

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
David Meel, Mathematics and Statistics, BGSU.
"Information-Processing as a mathematical learning theory"

2:30 ALGEBRA SEMINAR  - Room 447 MSC
Curt Bennett, Mathematics and Statistics, BGSU.
"Buildings and BN-pairs"

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Kit Chan, Mathematics and Statistics, BGSU.
"Hypercyclicity"

3:30 STATISTICS SEMINAR SERIES  - Room 459 MSC
Jiahua Chen, University of Waterloo, visiting BGSU this semester
"Empirical Likelihood Methods"

Tuesday, February 24

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC
Gordon Wade, Mathematics and Statistics, BGSU.
"Traveling Waves in Reaction-Diffusion Models"

2:30 MAPLE WORKSHOP  - Scientific Computing Lab, MSC
John Gresser, Mathematics and Statistics, BGSU.

Wednesday, February 25

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
David Meel, Mathematics and Statistics, BGSU.
"Information-Processing as a mathematical learning theory"

Thursday, February 26

1:00 STATISTICAL COMPUTING SEMINAR  - Room 459 MSC
Arthur Yeh, Applied Statistics and Operations Research, BGSU
"Introduction to the Bootstrap"

Friday, February 27

3:30 Coffee
3:45 COLLOQUIUM  - Room 459 MSC
Jane Harvill, Applied Statistics and Operations Research, BGSU
"Testing time series linearity via goodness of fit methods"
Abstract: Arguably, one of the most crucial aspects of
statistically analyzing a dataset is proper model
identification.  This is especially true in time series
analysis where the statistical model selected must describe
the deterministic relationship between the past, present, and
future, and must also describe the randomness inherent in the
data.  The field of linear time series is well-developed with
a rich history in application and theory.  Recently, great
strides in non-linear time series analysis have been made.
With these advancements, it becomes desirable to develop
reliable tests for the linearity of a time series.  Strengths
and weaknesses of existing tests are discussed, and a new
method for testing time series linearity which makes use of
the distributional properties of the normalized bispectrum
will be introduced.  Simulation studies on a general
application of goodness of fit tests compared to existing
methods will be presented.  In general, these studies
indicated the proposed procedure will be more powerful than
existing techniques.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of March 2 - 6, 1998

Monday, March 2

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Ron Harris, Mathematics and Statistics, BGSU.
"Motivation as a determinant for success in mathematics"

2:30 ALGEBRA SEMINAR  - Room 447 MSC
Curt Bennett, Mathematics and Statistics, BGSU.
"Buildings and BN-pairs"

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Kit Chan, Mathematics and Statistics, BGSU.
"Hypercyclicity"

3:30 STATISTICS SEMINAR SERIES  - Room 459 MSC
Jiahua Chen, University of Waterloo, visiting BGSU this semester
"Empirical Likelihood Methods"

Tuesday, March 3

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC
Bernarda Elec, Mathematics and Statistics, BGSU.
"Examples of Dynamical Systems in Mathematical Ecology"

2:30 MAPLE WORKSHOP  - Scientific Computing Lab, MSC
John Gresser, Mathematics and Statistics, BGSU.

Wednesday, March 4

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Ron Harris, Mathematics and Statistics, BGSU.
"Motivation as a determinant for success in mathematics"

Thursday, March 5

1:00 STATISTICAL COMPUTING SEMINAR  - Room 459 MSC
Arthur Yeh, Applied Statistics and Operations Research, BGSU
"Resampling methods in regression"

Friday, March 6

No Colloquium this week.  Next Colloquium on Friday, March 20.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of March 16 - 20, 1998

Monday, March 16

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Ron Harris, Mathematics and Statistics, BGSU
"Motivation as a factor in mathematics success"

2:30 ALGEBRA SEMINAR  - Room 447 MSC
Gernot Stroth, Martin-Luther-Universitat Halle-Wittenberg
"Amalgams in the theory of finite simple groups"

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Craig Zirbel, Mathematics and Statistics, BGSU
"The role of measure theory in probability"

3:30 STATISTICS SEMINAR SERIES  - Room 459 MSC
Jiahua Chen, University of Waterloo, visiting BGSU this semester
"Empirical Likelihood Methods"

Tuesday, March 17

10:30 GRADUATE STUDENT SEMINAR  - Room 459 MSC
Ron Harris, Mathematics and Statistics, BGSU
"Motivation in mathematics education"
All are welcome to attend.

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC
Vena Pearl A. Bongolan, Mathematics and Statistics, BGSU

2:30 MAPLE WORKSHOP  - Scientific Computing Lab, MSC
John Gresser, Mathematics and Statistics, BGSU.

Wednesday, March 18

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Barbara Moses, Mathematics and Statistics, BGSU
"Dienes and the theory of mathematical variability"

Thursday, March 19

1:00 STATISTICAL COMPUTING SEMINAR  - Room 459 MSC

Friday, March 20

3:30 Coffee
3:45 COLLOQUIUM  - Room 459 MSC
Gernot Stroth, Martin-Luther-Universitat Halle-Wittenberg
"The sporadic simple groups involved in the classification"
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of March 23 - 27, 1998

Monday, March 23

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Diane Erb, Mathematics and Statistics, BGSU
"Jerome Bruner and his philosophy of mathematics education"

2:30 ALGEBRA SEMINAR  - Room 447 MSC
Corinna Wiedorn, Martin Luther Universitat, Halle-Wittenberg
"c-Extensions of Petersen type geometries"

3:30 STATISTICS SEMINAR SERIES  - Room 459 MSC
Jiahua Chen, University of Waterloo, visiting BGSU this semester
"Empirical Likelihood Methods"

Tuesday, March 24

10:30 GRADUATE STUDENT SEMINAR  - Room 459 MSC
Daria Filippova, Mathematics and Statistics, BGSU
"The modeling of relativistic electron beams"
All are welcome to attend.

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC
Craig Zirbel, Mathematics and Statistics, BGSU
"Predator-prey models with stochastic noise"
Abstract: One way to make the standard predator-prey model more
realistic is to add "noise" to represent random fluctuations
in birth and death rates for the two species.  This idea will
be introduced through a discussion of the Euler method for
numerical solutions and simulations.

2:30 MAPLE WORKSHOP  - Scientific Computing Lab, MSC
John Gresser, Mathematics and Statistics, BGSU.

3:30 FACULTY MEETING  - Room 459 MSC
Discussion of promotion and tenure document, plus announcements.

Wednesday, March 25

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Diane Erb, Mathematics and Statistics, BGSU
"Jerome Bruner and his philosophy of mathematics education, part II"

Thursday, March 26

1:00 STATISTICAL COMPUTING SEMINAR  - Room 459 MSC
Arthur Yeh, Applied Statistics and Operations Research, BGSU
"Optimal design"

Friday, March 27

No colloquium this week.  Next colloquium Friday, April 3.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of March 30 - April 3, 1998

Monday, March 30

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC

2:30 ALGEBRA SEMINAR  - Room 447 MSC
Kay Magaard, Wayne State University
"The Guralnick-Thompson conjecture for groups of bounded genus"

3:30 STATISTICS SEMINAR SERIES  - Room 459 MSC
Jiahua Chen, University of Waterloo, visiting BGSU this semester
"Empirical Likelihood Methods"

Tuesday, March 31

10:30 GRADUATE STUDENT SEMINAR  - Room 459 MSC
Vena Pearl Bongolan, Mathematics and Statistics, BGSU

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC
So-Hsiang Chou, Mathematics and Statistics, BGSU
"Cycles and Bifurcation"

2:30 MAPLE WORKSHOP  - Scientific Computing Lab, MSC
John Gresser, Mathematics and Statistics, BGSU.

3:30 FACULTY MEETING  - Room 459 MSC
Preparation for department retreat this Saturday.

Wednesday, April 1

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC

Thursday, April 2

1:00 STATISTICAL COMPUTING SEMINAR  - Room 459 MSC
Jane Harvill, Applied Statistics and Operations Research, BGSU
"Density estimation"

Friday, April 3

3:30 Coffee
3:45 COLLOQUIUM  - Room 459 MSC
Grahame Bennett, Indiana University
"Hardy, Littlewood and Polya revisited"
Abstract: This is a talk about elementary inequalities and is
suitable for a general audience. The inequalities to be
discussed all arose from problems in Functional Analysis, but
their origins will be described only briefly here. Instead, we
concentrate on the inequalities themselves, attempting to add
one theorem to each of the chapters of Hardy, Littlewood and
Polya's classic work: "Inequalities." The theorems (in keeping
with the spirit of HLP) need to be easy to state, yet
not-so-easy to prove, and they need to have pizzazz. Come see
how to compete with the masters at their own game: if the
speaker can do it, then so can you! (Or come see the speaker
fall on his pizzazz.)

***************************************************************************

Saturday, April 4

9:30 - 3:00  DEPARTMENT RETREAT  - Best Western Falcon Plaza, Bishop Room

***************************************************************************

Monday, April 6

3:30 COLLOQUIUM  - Room 220 MSC    *** note change of room ***
C. R. Rao, 1998 Distinguished Lukacs Professor, BGSU
"Cross Examination of Data"
Abstract: Statisticians are generally called upon to work on
data collected by others. In order to understand the data as
to how they are generated and come to be recorded, and to
choose a suitable stochastic model for analysis, it is
necessary to do an initial analysis of data.  Fisher calls
such an analysis, Cross Examination of Data, which literally
means questioning the data eliciting answers.  Some possible
defects occurring in observed data are due to:
* Unconscious editing of data
* Recording and copying errors
* Non-random errors
* Faking
* Contamination and spurious observations, outliers
* Incomplete frame of sampling
* Nonresponse, and so on.
How does one detect such defects, and clean the data and make
adjustments for them in data analysis?  Some examples will be
given based on the speaker's experience of handling large sets
of real data.

There will be a brief introduction of the speaker by Professor
Gabor Szekely prior to the talk.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of April 6 - April 10, 1998

Monday, April 6

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC

2:30 ALGEBRA SEMINAR  - Room 447 MSC
Dan Frohard, Wayne State University
"The Guralnick-Thompson conjecture for groups of bounded genus, II"

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Neal Carothers, Mathematics and Statistics, BGSU

3:30 COLLOQUIUM  - Room 220 MSC    *** note change of room ***
C. R. Rao, 1998 Distinguished Lukacs Professor, BGSU
"Cross Examination of Data"
Abstract: Statisticians are generally called upon to work on
data collected by others. In order to understand the data as
to how they are generated and come to be recorded, and to
choose a suitable stochastic model for analysis, it is
necessary to do an initial analysis of data.  Fisher calls
such an analysis, Cross Examination of Data, which literally
means questioning the data eliciting answers.  Some possible
defects occurring in observed data are due to:
* Unconscious editing of data
* Recording and copying errors
* Non-random errors
* Faking
* Contamination and spurious observations, outliers
* Incomplete frame of sampling
* Nonresponse, and so on.
How does one detect such defects, and clean the data and make
adjustments for them in data analysis?  Some examples will be
given based on the speaker's experience of handling large sets
of real data.

There will be a brief introduction of the speaker by Professor
Gabor Szekely prior to the talk, and a reception after the talk.

Tuesday, April 7

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC

2:30 MAPLE WORKSHOP  - Scientific Computing Lab, MSC
John Gresser, Mathematics and Statistics, BGSU.

Wednesday, April 8

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC

Thursday, April 9

1:00 STATISTICAL COMPUTING SEMINAR  - Room 459 MSC
Jane Harvill, Applied Statistics and Operations Research, BGSU
"Density estimation"

***************************************************************************

Monday, April 13

3:30 STATISTICS SEMINAR  - Room 459 MSC
C. R. Rao, 1998 Distinguished Lukacs Professor, BGSU
"Statistical Solutions of Matrix Algebra"

***************************************************************************

Monday, April 20

3:30 STATISTICS SEMINAR  - Room 459 MSC
C. R. Rao, 1998 Distinguished Lukacs Professor, BGSU
"Pre- and Post-Least-Squares: The Emergence of Robust Estimation"

Friday, April 24

9:00 Lukacs Symposium begins  - Room 115 Olscamp Hall

***************************************************************************

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of April 13 - April 17

Monday, April 13

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Oxana Grinevitch, Mathematics and Statistics, BGSU
"Skinner, behaviorism and mathematics learning"

2:30 ALGEBRA SEMINAR  - Room 447 MSC
Sergey Shpectorov, Mathematics and Statistics, BGSU
"Landazuri-Seitz-Zalesskii bound"

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Neal Carothers, Mathematics and Statistics, BGSU
"Riesz bases II"
Abstract: We will discuss Bari's Theorem and the Kothe-Toeplitz
Theorem on unconditional bases in Hilbert space.  This is a
continuation of last week's talk, but is based largely on
elementary principles.  The talk should be accessible to any
student in MATH 766.

3:30 LUKACS LECTURE  - Room 459 MSC
C. R. Rao, Distinguished Lukacs Professor, BGSU
"Statistical solutions to matrix problems"
Abstract: Most of the propositions in the theory of Linear
Estimation and Multivariate Analysis are proved using results
of Matrix Algebra.  It is shown that some of the key results
in Matrix Algebra can be derived from certain propositions in
mathematical statistics, whose derivation does not depend on
matrix theory.

We exploit two results in mathematical statistics for this
purpose.  One is that Fisher information in the whole sample
is not less than the information in a statistic.  Another is
that the variance-covariance matrix of a vector random
variable is non-negative definite.

The following results will be discussed: Convexity of A
inverse and A squared in the space of positive-definite
matrices; Milne's inequality; Non-negative definiteness of
Schur complement, Hadamard and Kronecker products of matrices;
Kantorovich inequality using linear programming and so on.

Tuesday, April 14

11:30 GRADUATE STUDENT SEMINAR  - Room 459 MSC
*** Note change of time ***
John Steele, Mathematics and Statistics, BGSU
"Limiting distributions for hierarchical structures"
All are welcome to attend.
Abstract: Limiting distributions have been a focus of study in
probability for some time.  The Central Limit Theorem for sums
of random variables and the asymptotic normality of many other
statistics are often used to provide useful approximations of
probabilities.  In the field of Reliability the well known
limiting distributions for minimum and maximum of observations
are often used.  These are usually discussed in terms of
limiting distributions arising from "series" structures in the
case of minimum observations and "parallel" structures in
terms of maximum observations.  The type of structure relates
to the actual design of a system or network.  In this talk I
shall generalize some of the notions used in determining these
limiting distributions to other structures beyond the series
and parallel cases.  The idea of a limiting distribution will
come from the repeated composition of the structure upon
itself.  For the series and parallel cases this yields results
consistent with those already well known.  I'll be able to
show that for most structures there is an analytic limiting
distribution.  While necessary and sufficient conditions for
distributions to be within the domain of attraction of a
particular limiting distribution do still remain elusive I
will show some conditions of sufficiency.  Along the way to
these results interesting observations concerning coherent
structures and their related reliability polynomials are
highlighted.

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC

2:30 MAPLE WORKSHOP  - Scientific Computing Lab, MSC
John Gresser, Mathematics and Statistics, BGSU.

3:30 FACULTY MEETING  - Room 459 MSC
Followup on the department retreat last Saturday.

Wednesday, April 15

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC
Oxana Grinevitch, Mathematics and Statistics, BGSU
"Skinner, behaviorism and mathematics learning"

Thursday, April 16

1:00 STATISTICAL COMPUTING SEMINAR  - Room 459 MSC
Jane Harvill, Applied Statistics and Operations Research, BGSU
"Density estimation"

****************************************************************************

Monday, April 20

3:30 LUKACS LECTURE  - Room 459 MSC
C. R. Rao, Distinguished Lukacs Professor, BGSU
"Pre- and Post-Least-Squares: The Emergence of Robust Estimation"
Abstract: From the time of Ptolemy, astronomers were faced with
the problem of obtaining best estimates of unknown parameters
from measurements subject to error.  Various attempts, partly
objective and partly subjective were made during the last five
centuries, which finally led to the discovery of the method of
least squares (LSE) in the beginning of the last century in
which Gauss (1777-1855) and Laplace (1749-1827) played major
roles.  Subsequent contributions by Markoff, Aitken, Bose, and
Rao provided generalizations of LSE to cover a number of
practical situations.  A historical account of the development
of LSE will be presented.

LSE has nice properties when errors are normally distributed.
However, they are sensitive to departures from normality and
the presence of outliers.  Some of the latest methods in what
is called M-estimation, which are robust to model deviations
and outliers will be discussed.

Friday, April 24

9:00 Lukacs Symposium begins  - Room 115 Olscamp Hall

Saturday, April 25

8:00 Lukacs Symposium continues

Sunday, April 26

8:00 Lukacs Symposium continues

***************************************************************************

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of April 20 - April 24

Monday, April 20

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Neal Carothers, Mathematics and Statistics, BGSU
"Riesz Bases III"
Abstract: The continuing saga of unconditional bases in Hilbert
space.

3:30 LUKACS LECTURE  - Room 459 MSC
C. R. Rao, Distinguished Lukacs Professor, BGSU
"Pre- and Post-Least-Squares: The Emergence of Robust Estimation"
Abstract: From the time of Ptolemy, astronomers were faced with
the problem of obtaining best estimates of unknown parameters
from measurements subject to error.  Various attempts, partly
objective and partly subjective were made during the last five
centuries, which finally led to the discovery of the method of
least squares (LSE) in the beginning of the last century in
which Gauss (1777-1855) and Laplace (1749-1827) played major
roles.  Subsequent contributions by Markoff, Aitken, Bose, and
Rao provided generalizations of LSE to cover a number of
practical situations.  A historical account of the development
of LSE will be presented.

LSE has nice properties when errors are normally distributed.
However, they are sensitive to departures from normality and
the presence of outliers.  Some of the latest methods in what
is called M-estimation, which are robust to model deviations
and outliers will be discussed.

Tuesday, April 21

10:30 ALGEBRA SEMINAR  - Room 447 MSC
*** Note change of day and time ***
Pham Huu Tiep, Ohio State University
"Low dimensional representations of finite groups of Lie type in
cross characteristics"

11:30 GRADUATE STUDENT SEMINAR  - Room 459 MSC
*** Note change of time ***
Tom Hinrichs, Mathematics and Statistics, BGSU
"The Theory of Equations in the Eighteenth Century"
As always, all are welcome to attend.
Abstract: An eighteenth century look at the theory of equations
and its relation to the Fundamental Theory of Algebra
(FTA). This is a quick review of the evolution of the FTA from
Leibniz to Lagrange.

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC
Gordon Wade, Mathematics and Statistics, BGSU
"Semigroups as a generalization of the matrix exponential"

Wednesday, April 22

11:30 MATHEMATICS EDUCATION SEMINAR  - Room 447 MSC

6:00 KME INITIATION BANQUET  - Mileti Alumni Center, BGSU
Initiation ceremony and the KME award for Excellence in Teaching
Mathematics will be presented. There will also be a talk.
Cost is $15 per person. Contact Curt Bennett, 372-7451. Thursday, April 23 1:00 STATISTICAL COMPUTING SEMINAR - Room 459 MSC Jane Harvill, Applied Statistics and Operations Research, BGSU Friday, April 24 9:00AM Lukacs Symposium begins - Room 115 Olscamp Hall "Statistics for the 21st Century" Organized by C. R. Rao, Distinguished Lukacs Professor The Symposium is open to the entire University community and the public. There is no need to register. You may come to whichever talk(s) you like. There will be about 31 talks covering a wide range of topics in statistics and probability. For details of the schedule and the topics of the talks, please see the link above or contact Craig Zirbel at 372-7466 1:30PM Lukacs Symposium continues - Room 220 Math Science Building 7:00PM Mixer at Best Western Falcon Plaza, Bishop room All speakers, guests, and participants are invited. This is an informal, buffet-style dinner. Saturday, April 25 8:00AM Lukacs Symposium continues - Room 220 Math Science Building 7:00PM Lukacs Symposium Banquet - Kaufman's at the Lodge Invited guests only. Seating is extremely limited. Sunday, April 26 8:00AM Lukacs Symposium continues - Room 220 Math Science Building 12:00PM KME PICNIC - Bowling Green City Park Officers for next year will be chosen. Please RSVP to the departmental secretary (372-2636) so that we will know how much food to have on hand. There is no charge for this picnic. Rain date May 3rd. 1:30PM Lukacs Symposium concludes *************************************************************************** Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of April 27 - May 1 Monday, April 27 11:30 MATHEMATICS EDUCATION SEMINAR - Room 445 MSC Barbara Moses, Mathematics and Statistics, BGSU "Relational versus instrumental understandings in math" 2:30 ANALYSIS SEMINAR - Room 459 MSC 2:30 ALGEBRA SEMINAR - Room 447 MSC K. Lux, University of Arizona "An Enhancement of the MeatAxe and related Algorithms" Tuesday, April 28 2:30 SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC Daria Fillipova, Mathematics and Statistics, BGSU "Shock waves in flow models" Wednesday, April 29 11:30 MATHEMATICS EDUCATION SEMINAR - Room 445 MSC Barbara Moses, Mathematics and Statistics, BGSU "What has the research told us about mathematics teaching?" Sunday, May 3 12:00 KME PICNIC - Bowling Green City Park Officers for next year will be chosen. Please RSVP to the departmental secretary (372-2636) so that we will know how much food to have on hand. There is no charge for the picnic. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of August 31 - September 4 Monday, August 31 3:30 STATISTICS SEMINAR ORGANIZATIONAL MEETING - Room 459 MSC Contact Craig Zirbel if you are interested in the seminar but are unable to attend this meeting. Tuesday, September 1 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU The first colloquium of the semester will be on Friday, September 11. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of September 7 - 11 Monday, September 7 Labor Day. No classes or seminars. Tuesday, September 8 10:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern - Mathematics and Statistics, BGSU "Lattice-ordered groups: structure and examples" 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU "The Witt design and the sporadic Mathieu groups" Wednesday, September 9 2:30 STATISTICS SEMINAR - Room 459 MSC Jim Albert, Mathematics and Statistics, BGSU "Introduction to Bayesian Prediction: How many home runs will Mark McGwire hit?" 7:00 WORKSHOP ON TEACHING FRESHMAN MATH & STATISTICS - Life Sciences 212 The workshop will be led by a panel consisting of Dan Madigan (Center for Teaching Learning and Technology), Bill Knight (Office of Institutional Research) and the coordinators of our freshman courses. All faculty and graduate students are encouraged to attend. Thursday, September 10 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU "The Witt design and the sporadic Mathieu groups" Friday, September 11 3:30 Coffee 3:45 COLLOQUIUM - Room 459 MSC Gabor Szekely, Mathematics and Statistics, BGSU "Mathematical Uncertainties" Abstract: Why do balls play a role in geometry similar to normal distributions in statistics? How can we use the Heisenberg uncertainty principle in statistics? Why is this principle equivalent to the classical Cramer-Rao inequality? All these questions can be answered with the help of a 1948 paper by C. E. Shannon. The scientific world is going to celebrate him next month. (This talk is part of an invited AMS talk the speaker will give in Gainesville, Florida.) 5:30 DEPARTMENT PICNIC - Carter Park, pavilion located by playground All Mathematics and Statistics faculty, graduate students, and their families are invited. There is a sign-up sheet for dishes to bring and transportation in the coffee room (Room 459). Contact Diane Erb (dianeer@bgnet.bgsu.edu) for more information. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of September 14 - 18 Monday, September 14 3:30 ANALYSIS SEMINAR - Room 459 MSC Kit Chan, Mathematics and Statistics, BGSU "Hypercyclicity and universality -- an overview" Tuesday, September 15 10:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Lattice-ordered groups: structure and examples" 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU "The Witt design and the sporadic Mathieu groups" Wednesday, September 16 2:30 STATISTICS SEMINAR - Room 459 MSC Gabor Szekely, Mathematics and Statistics, BGSU "Quadratic forms in statistics: a new method for constructing tests" Thursday, September 17 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU "The Witt design and the sporadic Mathieu groups" Friday, September 18 3:30 Coffee 3:45 COLLOQUIUM - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "The ring of quotients of C(X) determined by the fixed filter F" Abstract: Recall that the classical ring of quotients of a commutative ring A with identity, 1, may be obtained as the set of all fractions of elements in the ring A, where the denominators are non-divisors of zero (or regular elements.) Our ring in question is C(X) the ring of all real-valued continuous functions from the topological space X. Denoting the classical ring of quotients of C(X) by q(X) we may obtain q(X) as a direct limit q(X) = lim C(U), where the U range over all dense cozerosets of X. (Here a cozeroset of X means a set which is realized as the inverse image of the set of nonzero real numbers, under a continuous function.) The collection of all dense cozerosets forms a nice set; in particular it is closed under finite intersections and unions. In the remaining minutes, we shall discuss the ring of quotients obtained by taking the above direct limit, but where the sets U are assumed to simply be co-finite subsets of X. We shall characterize those spaces X for which this ring of quotients is contained in q(A). Saturday, September 19 8:30 Breakfast 9:00 FACULTY RETREAT - Nazareth Hall, Grand Rapids Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of September 21 - 25 Monday, September 21 3:30 ANALYSIS SEMINAR - Room 459 MSC Kit Chan, Mathematics and Statistics, BGSU "Hypercyclicity and universality -- an overview part 2" Tuesday, September 22 10:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Lattice-ordered groups: hyper-archimedean l-groups" 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Curt Bennett and Sergey Shpectorov, Mathematics and Statistics, BGSU "The Witt design and the sporadic Mathieu groups" Wednesday, September 23 2:30 STATISTICS SEMINAR - Room 459 MSC Craig Zirbel, Mathematics and Statistics, BGSU "Rate of convergence for Markov chains" Thursday, September 24 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Curt Bennett and Sergey Shpectorov, Mathematics and Statistics, BGSU "The Witt design and the sporadic Mathieu groups" Friday, September 25 3:30 Coffee 3:45 COLLOQUIUM - Room 459 MSC Juan Bes, Mathematics and Statistics, BGSU "Hypercyclic operators" Abstract: Let X be an F-space (i.e., a complete linear metric space). A continuous linear operator T on X is said to be hypercyclic, provided there is some x in X whose orbit { x , Tx , T^2x, .... } is dense in X. If so, x is called a hypercyclic vector for T. This notion arises naturally in the study of invariant subsets, but it may also be traced back to a theorem of G. D. Birkhoff in 1929, that shows the existence of a "universal" entire function f whose set of translates {f(z+1), f(z+2), .... } approximate, over any compact set, any entire function as accurately as desired. We will state a "Birkhoff" theorem for the complete algebra generated by the dual of a Banach space, a characterization of those operators whose direct sum T+T is hypercyclic, and some results concerning the sets of hypercyclic vectors. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of September 28 - October 2 Monday, September 28 3:30 ANALYSIS SEMINAR - Room 459 MSC Kit Chan, Mathematics and Statistics, BGSU "The hypercyclicity criterion" Tuesday, September 29 10:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Lattice-ordered groups: hyper-archimedean l-groups" 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Curt Bennett and Sergey Shpectorov, Mathematics and Statistics, BGSU "The Witt design and the sporadic Mathieu groups" Wednesday, September 30 2:30 STATISTICS SEMINAR - Room 459 MSC Truc Nguyen, Mathematics and Statistics, BGSU "Some characterizations of normal distribution and EDF goodness-of-fit test" Thursday, October 1 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Curt Bennett and Sergey Shpectorov, Mathematics and Statistics, BGSU "The Witt design and the sporadic Mathieu groups" Friday, October 2 3:30 Coffee 3:45 COLLOQUIUM - Room 459 MSC Waldemar Weber, Mathematics and Statistics, BGSU "Finding Preferential Personality Types and Learning Styles in Mathematics" Abstract: Students learn mathematics about as many different ways as we teach it. This colloquium presentation begins by reviewing how Katharine Briggs and Isabel Myers made the personality theories of Carl Jung operationally accessible. A logically equivalent but indirect algorithm is then proposed so that forced choices obtain more flexible formulations. The resulting instrument, which remains under development, will be demonstrated by an interactive program. I will try to finish by illustrating how instructors can use the student profiles that it produces to become more effective as they work with individual students. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of October 5 - 9 Monday, October 5 3:30 ANALYSIS SEMINAR - Room 459 MSC Kit Chan, Mathematics and Statistics, BGSU "Hypercyclic entire functions" Tuesday, October 6 10:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Lattice-ordered groups: hyper-archimedean l-groups" 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Curt Bennett and Sergey Shpectorov, Mathematics and Statistics, BGSU "The Witt design and the sporadic Mathieu groups" Wednesday, October 7 2:30 STATISTICS SEMINAR - Room 459 MSC John Steele, Mathematics and Statistics, BGSU "Limiting distributions for hierarchical structures" Abstract: The Central Limit Theorem for sums of random variables and the asymptotic normality of many other statistics are often used to provide useful approximations of probabilities. In the field of Reliability the well known limiting distributions for minimum and maximum of observations are often used. These are usually discussed in terms of limiting distributions arising from "series" structures in the case of minimum observations and "parallel" structures in terms of maximum observations. In this talk I shall generalize some of the notions used in determining these limiting distributions to other structures beyond the series and parallel cases. Thursday, October 8 3:00 FACULTY MEETING - Room 459 MSC Discussion of the actuarial program Friday, October 9 - Saturday, October 10 MAA meeting in Columbus Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of October 12 - 16 Monday, October 12 3:30 ANALYSIS SEMINAR - Room 459 MSC Juan Bes, Mathematics and Statistics, BGSU "Hypercyclic vectors" Tuesday, October 13 10:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Lattice-ordered groups: hyper-archimedean l-groups" Wednesday, October 14 2:30 STATISTICS SEMINAR - Room 459 MSC Norm Preston, Mathematics and Statistics, BGSU "Bayesian residual-based model checking" Abstract: Statistical modeling has become one of the main tools in science and industry. By using these models, data can be analyzed and inferences can be made about the population in which the data came from. In this talk, the Bayesian approach to generalized linear models will be presented. In particular, Bayesian residuals used in the selection and criticism of these models will be examined. Additionally, the Bayesian and Classical statistics approach to residual-based model checking will be compared. Thursday, October 15 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Curt Bennett and Sergey Shpectorov, Mathematics and Statistics, BGSU "The Witt design and the sporadic Mathieu groups" Friday, October 16 3:30 Coffee 3:45 COLLOQUIUM - Room 459 MSC Anthony B. Evans, Wright State University "Mutually orthogonal latin squares based on groups" Abstract: One way to construct sets of mutually orthogonal Latin squares (MOLS) is to start with the multiplication/addition table of a finite group and create further squares by permuting its columns. In this talk we will examine some simple classes of permutations that have been used in the construction of MOLS and maximal sets of MOLS. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of October 19 - 23 Tuesday, October 20 10:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Lattice-ordered groups: hyper-archimedean l-groups" 3:30 FACULTY MEETING - Room 459 MSC Discussion of program review Wednesday, October 21 2:30 STATISTICS SEMINAR - Room 459 MSC Edsel Pena, Mathematics and Statistics, BGSU "Estimation from recurrent data accrued via an informative sum-quota stopping rule" Thursday, October 22 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Curt Bennett and Sergey Shpectorov, Mathematics and Statistics, BGSU "The Witt design and the sporadic Mathieu groups" 6:00 ACTUARIAL SCIENCE SOCIETY - Room 459 MSC PJ Gabel and Peter Gasiewski, Price Waterhouse Coopers The BGSU Actuarial Science Society presents BGSU graduates PJ Gabel and Peter Gasiewski of Price Waterhouse Coopers. They will discuss their brand of actuarial science, as well as the inner workings of their Chicago firm. All are invited and questions are welcome. For more information, contact Jeff Faber (jfaber@bgnet). Friday, October 23 3:30 Coffee 3:45 COLLOQUIUM - Room 459 MSC Chi Song Wong, University of Windsor "Redistribution of wealth with applications to optimal designs" Abstract: Majorization deals with re-distribution of wealth of n people: the wealth of person i is changed from xi to yi. The distribution (yi) is majorized by the distribution (xi) if for any k, the total wealth of the k most poor people in (yi) is no less than the total wealth of the k most poor people in (xi). This notion was introduced near the beginning of this century. Characterizations of majorization are available in terms of geometry, probability, convex functions and linear algebra; the proofs for equivalences involve several fundamental results in functional analysis. This is a survey talk; it gives no proofs. The introduction will end with the joint work of the speaker and several co-authors. Majorization should be defined in terms of stochastic processes while 'poverty' demands a simple and practical definition. The speaker wishes to relate these two notions. Majorization gives rise to a giant factory for producing inequalities and thus has a wide range of applications. The speaker was attracted by this notion as a result of searching for optimal designs and multivariate admissible rules in statistics; he will demonstrate how inequalities are produced through majorization. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. BOWLING GREEN STATE UNIVERSITY DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR Week of October 26 - 30 Monday, October 26 12:30 APPLIED MATHEMATICS SEMINAR - Room 400 MSC So-Hsiang Chou, Mathematics and Statistics, BGSU "Raviart-Thomas spaces" 3:30 ANALYSIS SEMINAR - Room 459 MSC Juan Bes, Mathematics and Statistics, BGSU "Hypercyclic Vectors, II" Tuesday, October 27 10:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Lattice-ordered groups: hyper-archimedean l-groups" 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU "The Leech lattice and Conway groups" Wednesday, October 28 2:30 STATISTICS SEMINAR - Room 459 MSC John Carson, Mathematics and Statistics, BGSU "One-sided multivariate inference" Thursday, October 29 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU "The Leech lattice and Conway groups" Friday, October 30 3:30 Coffee 3:45 COLLOQUIUM - Room 459 MSC John Gresser, Mathematics and Statistics, BGSU "Maple as an idea instrument" Abstract: We have all engaged in the struggle to take mathematics beyond computation, to teach it as a discipline of ideas as well as one of computation . When we are lucky enough to have a receptive audience that buys into our world of ideas, we all know what to say, and the experience is both joyful and successful. Oh yes, this is how mathematics should be taught. As we all know, however, this process does not work with most of our undergraduate students. We still teach ideas, but our students largely ignore them, and concentrate instead on memorization and calculation. It is easy to see why. Our calculations are so complicated, that students focus all of their attention on calculation, rather than ideas. Students actually like calculation. It's an escape, something they can do without thinking. Furthermore, our exams are often too long and too crammed with calculation, which only reinforces memorization and calculation as the tools of choice in their war against bad grades. This is not an easy problem to fix, and Maple is no panacea, but it can certainly be used to promote mathematical understanding. With Maple, students can focus all of their energy on IDEAS and let the computer take care of the calculations. Additionally, it makes our students active participants in the process, so they have no choice but to climb on board. It is a wondrous opportunity for the teaching of mathematics as a discipline of ideas. Do students like Maple? Some students obviously get very excited about it. Many others do not like it at all. It takes away most of their computational responsibilities (which they find comforting), and puts them in charge of all the ideas (which they are unsure of). Admittedly, there are some Maple idiosyncrasies that can deal a severe blow to a mathematical exercise, and this contributes in a minor way to student stress, but a little experience in working with Maple quickly eliminates most of these difficulties. Problems are usually mathematical, often resulting in mathematically ill-defined input statements. To communicate with a computer, students must express themselves logically, and precisely. But surely, this is something we wish to promote anyway. The purpose of this talk is not to teach Maple, but to show by example how it can be used to promote ideas. Some examples are very elementary, others are more complicated. A few might even be exciting. You might be surprised by what our students are capable of doing with this technology. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. BOWLING GREEN STATE UNIVERSITY DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR Week of November 9 - 13 Monday, November 9 12:30 APPLIED MATHEMATICS SEMINAR - Room 400 MSC J.Gordon Wade, Mathematics and Statistics, BGSU "Mixed finite element methods" 3:30 ANALYSIS SEMINAR - Room 459 MSC Juan Bes, Mathematics and Statistics, BGSU "Hypercyclic Vectors, IV" 7:30 KME SPEAKER - Room 459 MSC Dr. Paul Boisen, National Security Agency "Coffee cups, nephroids, and envelopes" Information on this presentation can be found at: http://www.cacr.caltech.edu/~roy/Caustic/ In addition, Dr. Boisen will be available to talk with students on Monday morning from 9:30-11:30 in MSC 400, and off and on throughout the afternoon in the undergraduate reading room. He has pamphlets and other information about careers and internship programs at the NSA. If anyone wants to set up a time to meet with Dr. Boisen, please contact Curt Bennett (cbennet@bgnet). He will be taken to lunch at 11:30. Tuesday, November 10 10:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Lattice-ordered groups: hyper-archimedean l-groups" 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU "The Leech lattice and Conway groups" Wednesday, November 11 Veterans' Day. No classes or seminars are scheduled. Thursday, November 12 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU "The Leech lattice and Conway groups" 7:00 ACTUARIAL SCIENCE SOCIETY SPEAKER - Room 459 MSC Watson Wyatt Worldwide will present a synopsis of what they do. Friday, November 13 3:30 Coffee 3:45 COLLOQUIUM - Room 459 MSC Myles Hollander, Florida State University "CENSORED!" Abstract: Being a statistician is a little like being a detective. We are often dealing with data and looking for clues in data. What do the data reveal? What conclusions should be drawn? What decisions should be made? What models can we build to make predictions for similar situations? In some situations the data exist to tell the story but they are obscured, blurred by confusing or selective presentation. The first case he will discuss is one such situation. In some other situations the data are incomplete or censored because some of the subjects in the study have not yet experienced the event of interest, such as relapse in a clinical trial. The second part of his talk is about such censored situations. The talk is designed for a general audience. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of November 16 - 20 Monday, November 16 12:30 APPLIED MATHEMATICS SEMINAR - Room 400 MSC 3:30 ANALYSIS SEMINAR - Room 459 MSC Ron Taylor, Mathematics and Statistics, BGSU "A Hilbert subspace of hypercyclic vectors" Tuesday, November 17 10:30 FACULTY MEETING - Room 459 MSC Dean Cranny and Marshall Rose (Affirmative Action Office) Hiring Strategies of Successful Searches 3:30 FACULTY MEETING - Room 459 MSC Program Review Unit Plan Wednesday, November 18 2:30 STATISTICS SEMINAR - Room 459 MSC Arjun Gupta, Mathematics and Statistics, BGSU "Elliptically contoured models in statistics" Thursday, November 19 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU "The Leech lattice and Conway groups" 7:00 ACTUARIAL SCIENCE SOCIETY SPEAKER - Room 459 MSC Nationwide Insurance, Columbus, Ohio Interviews will be conducted on Friday Friday, November 20 3:30 Coffee 3:45 COLLOQUIUM - Room 459 MSC Karl Grosse-Erdmann, Fernuniversitat Hagen/Ohio University "Murphy's law in analysis" Abstract: The study of hypercyclic operators on Banach spaces has been pursued intensively over the last decade, leading to several exciting new results and some intriguing open problems. Recall that an operator T on a Banach space X is called hypercyclic if it has a dense orbit, i.e., if for some x in X the set {T^n x : n >= 0} is dense in X. While the theory of hypercyclicity only started almost 30 years ago with a paper by S. Rolewicz, there is a prehistory that dates back to the beginning of the century. In this expository talk I shall discuss hypercyclicity from these early roots up to the most recent advances. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of November 23 - 27 Monday, November 23 12:30 APPLIED MATHEMATICS SEMINAR - Room 400 MSC Daria Filippova, Mathematics and Statistics, BGSU "Perron's method for proof of existence of solutions of the Dirichlet problem in arbitrary domains" 3:30 ANALYSIS SEMINAR - Room 459 MSC Karl Grosse-Erdmann, Fernuniversitat Hagen/Ohio University "Chaos out of order -- why the exponential function makes differentiation chaotic" Wednesday, November 25 No seminars or classes scheduled. Happy Thanksgiving! Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of November 30 - December 4 Monday, November 30 12:30 APPLIED MATHEMATICS SEMINAR - Room 400 MSC 3:30 ANALYSIS SEMINAR - Room 459 MSC Mihaela Marcusanu, Mathematics and Statistics, BGSU "Universal primitives" Tuesday, December 1 10:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Lattice-ordered groups: hyper-archimedean l-groups" 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU "The Leech lattice and Conway groups" Wednesday, December 2 2:30 STATISTICS SEMINAR - Room 459 MSC Lisa Cocchi and Diane Conway, Applied Statistics and Operations Research, BGSU Thursday, December 3 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU "The Leech lattice and Conway groups" Friday, December 4 3:30 Coffee 3:45 COLLOQUIUM - Room 459 MSC Edsel Pena, Mathematics and Statistics, BGSU "Time-to-event analysis" Abstract: In many studies in the natural and social sciences, in biomedical settings, and in engineering/reliability situations, the characteristic or variable of interest is the time to the occurrence of an event of interest. Examples of such events are death or relapse of patients in biomedical studies, breakdown of a marriage in a sociological setting, failure of a mechanical/electronic component, first mating of organisms in an ecological study, committing a criminal offense by a delinquent, acceptance of a manuscript for publication, an error in a Tom Wolfe novel, insurance claim in an actuarial setting, occurrence of an earthquake in a geological investigation, and many others. A statistical problem in such situations is to estimate nonparametrically the unknown distribution function of the time to occurrence of the event on the basis of a possibly incomplete data. In this talk, starting from basic probability principles, the main ideas behind the modern stochastic process approach to the analysis of such time-to-event data will be discussed. This modern framework will then be applied to the nonparametric estimation of the distribution function of the interoccurrence times of events when the event of interest is of a recurring type. This will be illustrated using data from a gastroenterology study. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of December 7 - 11 Monday, December 7 12:30 APPLIED MATHEMATICS SEMINAR - Room 400 MSC Bernie Elec, Mathematics and Statistics, BGSU 3:30 ANALYSIS SEMINAR - Room 459 MSC Neal Carothers, Mathematics and Statistics, BGSU "Gliding humps and sliding bumps" Abstract: We give two prototypical examples of the so-called gliding hump argument. The first is quite elementary while the second is largely elementary. 7:30 MATH CLUB TALK - Room 222 MSC Paul Boisen, National Security Agency "Let's solve some cipher!" Abstract: WEOET NAEFG NSORA TNAHI ERLRU RSEEG RSASR SEDOC HOIER LRFLR ENEAL ARNSS PMOLH BSYAI IRFSM NCCVN TRLTD OITDA EURPA SNFEE DIPOI HFTPE TESDL HPAUO EEDOH FETMI TTRMT FEEAD BTTIH NSRIR DEEAS TUDHO TXOSF TJMTC OWELV ISSUM TIOEE TIDHE EYORS ISXOE AOIIO OEABR NOLUE CPTOU UEYOM ETIET TTNET NDEBU QONNS NUONI OEETR FIEIT ERCSS TNCTO 5 characters per group times 54 groups = 270 characters Dr. Boisen will be available to meet with faculty and students earlier in the day, in Room 447. Contact Curt Bennett for more details. Tuesday, December 8 10:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Archimedean extensions of rings of continuous functions" 3:30 FACULTY MEETING - Room 459 MSC Discussion of the Unit Plan. Wednesday, December 9 2:30 STATISTICS SEMINAR - Room 459 MSC Lisa Cocchi and Diane Conway, Applied Statistics and Operations Research, BGSU "The benefits and necessities of randomization, an activity-based presentation" Thursday, December 10 12:30 OFFICE PARTY - Room 459 MSC 3:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Curt Bennett, Mathematics and Statistics, BGSU "The MOG" Friday, December 11 Last day of classes. No colloquium. 6:00 DEPARTMENT HOLIDAY FAMILY POTLUCK Social Room, First Presbyterian Church, 126 S. Church St., next to the Junior High School, Wooster St., one block west of Main St. For faculty, graduate students, and their families or significant others. Sign up in the department office, telling what dish you will bring and how many people. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of January 11 - 15 Tuesday, January 12 3:30 FACULTY MEETING - Room 459 MSC Meeting with candidates for department chair Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of January 18 - 22 Monday, January 18 Martin Luther King, Jr. Day - no classes Tuesday, January 19 3:30 FACULTY MEETING - Room 459 MSC Discussion of program review document. Wednesday, January 20 2:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU "Open special cases of the distance transitive graphs problem" 3:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Algebraic properties of rings of continuous functions" 3:30 STATISTICS SEMINAR - Room 238 MSC *** Note room *** Jim Albert, Mathematics and Statistics, BGSU "Ordinal modeling using latent variables" Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of January 25 - 29 Monday, January 25 2:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU "Open special cases of the distance transitive graphs problem" 3:30 ANALYSIS SEMINAR - Room 459 MSC Mihaela Marcusanu, Mathematics and Statistics, BGSU "Universal measurable functions" Wednesday, January 27 2:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Sergey Shpectorov, Mathematics and Statistics, BGSU "Open special cases of the distance transitive graphs problem" 3:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Algebraic properties of rings of continuous functions" 3:30 STATISTICS SEMINAR - Room 238 MSC *** Note room *** G. P. Patil, Distinguished Lukacs Professor, BGSU "Environmental and ecological statistics" *** First talk of the semester *** 7:00 ACTUARIAL SCIENCE SOCIETY - Room 459 MSC Towers Perrin Actuarial Consulting Firm, Chicago Discussion of the company's line of business All are invited and refreshments and food will be available. Thursday, January 28 4:00 STATISTICS SEMINAR - Room 459 MSC Jim Albert, Mathematics and Statistics, BGSU "Ordinal modeling using latent variables" Friday, January 29 3:15 Coffee 3:45 COLLOQUIUM - Room 459 MSC Regents Professor Ernest E. Shult, Kansas State University "Remarks on the classification of polar spaces" Abstract: The general semilinear groups act as the full groups of symmetries of the classical projective spaces. Projective spaces of rank at least three or more are all characterized by the famous Veblen-Young axioms. All other classical groups are the groups of symmetries of polar spaces. The polar spaces of rank at least three are characterized by axioms even simpler than the Veblen-Young axioms. This fact is a culmination of work which began in the 1940's and has been enlarged and revised several times since. For polar spaces of rank at least four, there is a teachable account of this classification, which is pieced together from the work of many authors. I hope to give an overview of this classification as currently revised, correcting along the way some errors that have been insinuated into revisions appearing in the in the current literature. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of February 1 - 5 Monday, February 1 2:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Curt Bennett, Mathematics and Statistics, BGSU "Open special cases of the distance transitive graphs problem" 3:30 ANALYSIS SEMINAR - Room 459 MSC Ron Taylor, Mathematics and Statistics, BGSU "Some results on super-cyclicity in the operator algebra of a separable Banach space" Tuesday, February 2 3:15 Coffee 3:45 COLLOQUIUM - Room 459 MSC Candidate for position in Statistics "Some recent developments in bioequivalence" Abstract: The hypotheses of recently proposed bioequivalences (FDA, 1997) involve several parameters, such as the mean and variance of two populations: the generic drug and the brand name drug. These hypothesis spaces may be complicated regions in a plane or even in a 3-dimensional space. How can we construct tests involving these kinds of hypothesis regions when the data are normally distributed? In this talk, a reparametrization is introduced, a general class of hypotheses, which includes the proposed bioequivalences, is discussed and the exact alpha-level tests are proposed. When there is interaction between formulation and subject, a two-by-three crossover design is sufficient to assess individual bioequivalence, while a two-by-two crossover design should be used for population bioequivalence. Wednesday, February 3 11:30 FACULTY MEETING - Room 459 MSC Meeting with candidates for department chair 2:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Curt Bennett, Mathematics and Statistics, BGSU "Open special cases of the distance transitive graphs problem" 3:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Algebraic properties of rings of continuous functions" 3:30 STATISTICS SEMINAR - Room 304 MSC **** Note new room **** G. P. Patil, Distinguished Lukacs Professor, BGSU "Environmental and ecological statistics" Thursday, February 4 4:00 STATISTICS SEMINAR - Room 459 MSC Jim Albert, Mathematics and Statistics, BGSU "Bayesian model comparison" Friday, February 5 3:15 Coffee 3:45 COLLOQUIUM - Room 459 MSC Candidate for a position in Applied Mathematics "Long-time error estimation and a stability indicator for the numerical solutions of initial value problems" Abstract: Traditional error estimation of initial value problems is based on the concept of numerical stability. For nonlinear problems and multi-physics systems discretized with various numerical techniques, it is difficult, if not impossible, to carry out stability analyses for the schemes. In many cases, computations are performed without error estimation. Our approach is more or less new in five aspects: 1, exact error propagation; 2, moving attractor; 3, two level error propagation analysis; 4, smoothing assumption; 5, stability indicator. With these, we prove a uniform bound (t>0) for the error between a numerical solution and a moving attractor. Because we do not base our analysis on any model problem or specific numerical scheme, the result can be used for many strongly nonlinear systems and arbitrary numerical methods. Currently, we consider only temporal discretization error, so we phrase the theory in terms of ODEs (including semi- discrete PDEs). In the future, the approach will be used to different types of PDEs. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of February 8 - 12 Monday, February 8 3:15 Coffee 3:45 COLLOQUIUM - Room 459 MSC Candidate for position in Statistics "Analysis of multivariate spatial data using a latent variable model" Tuesday, February 9 3:15 Coffee 3:45 COLLOQUIUM - Room 459 MSC Candidate for position in Applied Mathematics "Boundary integral computations of electromagnetic scattering in photonic crystal structures" Wednesday, February 10 2:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Curt Bennett, Mathematics and Statistics, BGSU "Open special cases of the distance transitive graphs problem" 3:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Algebraic properties of rings of continuous functions" 3:30 STATISTICS SEMINAR - Room 304 MSC **** Note room **** G. P. Patil, Distinguished Lukacs Professor, BGSU "Environmental and ecological statistics" Thursday, February 11 3:15 Coffee 3:45 COLLOQUIUM - Room 459 MSC Candidate for position in Algebra "Finite simple subgroups of simple algebraic groups" Friday, February 12 3:15 Coffee 3:45 COLLOQUIUM - Room 459 MSC Candidate for a position in Statistics "Simultaneous multiple comparisons using more than one control" Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of March 1 - 5 Monday, March 1 2:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Curt Bennett, Mathematics and Statistics, BGSU "Orthogonal and symplectic groups and geometries" 3:30 ANALYSIS SEMINAR - Room 459 MSC ***** Seminar canceled, rescheduled for Monday, March 15 ***** Gordon Wade, Mathematics and Statistics, BGSU "An abstract Poincare inequality" Wednesday, March 3 External reviewers visit the department today. 10:00 Reviewers meet with graduate students - MSC 400 11:00 Reviewers meet with undergraduate non-majors - MSC 400 11:20 Reviewers meet with undergraduate majors - MSC 400 11:30 Applied Statistics and Operations Research interview talk Business Administration Building, Room 4000 Candidate for a tenure-track position "Improving simulation models with constant and random imputs via sensitivity analysis (Cost-effective sensitivity analysis)" Noon Reviewers have lunch with faculty group 1:30-5:00 Office visits by reviewers to individual faculty and staff. Faculty will be in offices except during teaching periods. 1:30 Algebra faculty meet with Phillips - MSC 400 2:30 Statistics/Probability faculty meet with S. Gupta - MSC 400 2:30 Analysis and Applied Math. faculty meet with Gorkin - MSC 447 2:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Curt Bennett, Mathematics and Statistics, BGSU "Orthogonal and symplectic groups and geometries" 3:30 Math. education faculty meet with Gorkin and Phillips - MSC 400 3:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Algebraic properties of rings of continuous functions" 3:30 STATISTICS SEMINAR - Room 304 MSC **** Note room **** G. P. Patil, Distinguished Lukacs Professor, BGSU "Hierarchical Markov transition matrix models and their applications to landscape ecology for watershed assessment with emphasis on relevant results in mathematical stochastics, matrix algebra, and mathematical statistics" 6:00 Reviewers have dinner with faculty group Thursday, March 4 4:00 STATISTICS SEMINAR - Room 459 MSC G. P. Patil, Distinguished Lukacs Professor, BGSU "Hierarchical Markov transition matrix models and their applications to landscape ecology for watershed assessment with emphasis on relevant results in mathematical stochastics, matrix algebra, and mathematical statistics (continued)" Friday, March 5 2:30 Applied Statistics and Operations Research interview talk Business Administration Building, Room 4000 Candidate for a tenure-track position "Multivariate nonparametric control charts using small samples" No department colloquium today. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of March 15 - 19 Monday, March 15 2:30 GROUPS AND GEOMETRIES SEMINAR - Room 459 MSC Curt Bennett, Mathematics and Statistics, BGSU "Orthogonal and symplectic groups and geometries" 3:30 ANALYSIS SEMINAR - Room 459 MSC Gordon Wade, Mathematics and Statistics, BGSU "An abstract Poincare inequality" Tuesday, March 16 4:00 STATISTICS SEMINAR - Room 459 MSC Hanfeng Chen, Mathematics and Statistics, BGSU "Nonregular models" Abstract: Standard statistical procedures often require that the set-up model satisfy some regularity conditions. I will discuss the consequences and difficulties in statistical inference when these regularity conditions are not satisfied. Wednesday, March 17 3:30 ALGEBRA SEMINAR - Room 459 MSC Warren McGovern, Mathematics and Statistics, BGSU "Algebraic properties of rings of continuous functions" 3:30 STATISTICS SEMINAR - Room 304 MSC **** Note room **** G. P. Patil, Distinguished Lukacs Professor, BGSU, and C. Taillie, Senior Research Associate, Center for Statistical Ecology and Environmental Statistics, Department of Statistics, Penn State "Statistical issues and approaches for multiscale modeling and assessment of landscapes based on single-resolution thematic raster maps" Abstract: Landscape pattern as represented in a thematic raster map is the joint result of two ingredients: (i) the marginal landcover distribution and (ii) the spatial arrangement of the landcover categories across the pixels. Although the landcover distribution has no explicit spatial content, it nonetheless affects the apparent spatial pattern as perceived by a human studying the map or as measured by most landscape metrics. To separate the perceptual from the "real" spatial pattern, landscape models should explicitly include the marginal landcover distribution as one set of parameters with additional parameters to regulate and summarize the "real" spatial pattern. Vanishing of these additional parameters then signifies an absence of spatial pattern, i.e., a random assignment of landcover categories to pixels subject to the given marginal landcover distribution. One such parametric family of landscape models employs a hierarchical sequence of Markov transition matrices to generate the raster maps at successively finer resolutions until the resolution of the data map is reached. Fitting of the model is based on linking the hierarchical transitions in the model to spatial transitions across the data map. The fitting of this model for the last transition matrix has been discussed in the earlier seminar. It is briefly reviewed to establish notation. We then show how transition matrices at earlier hierarchical levels can be estimated using spatial transition matrices at broader spatial scales in the data map. Self-similarity of the hierarchical model (i.e., constancy of the transition matrices) is characterized in terms of the spatial adjacency matrices and a graphical test of self-similarity is described. We then study the eigen-decomposition of the transition matrices, with a view toward using the eigenvectors and eigenvalues for landscape characterization. Eigenvectors are interpreted in terms of the spatial persistence of perturbations to the stationary distribution. Ordered eigenvalues can be plotted against rank order and roughly indicate a fitted model's placement in a spectrum of spatial pattern ranging from "no pattern" to "very patchy" or "highly segregated." For the 102 watersheds of Pennsylvania, the eigenvalue plots are nearly straight lines and cover a small portion of parameter space. This suggests the desirability of more parsimonious modeling of the transition matrices. We accordingly describe several parametric subfamilies of transition matrices using the notion of diagonal dominance as guiding principle. Diagonal dominance determines the degree to which daughters are like their mothers or, in the spatial domain, pixels are like their neighbors. One model, in particular, involves parameters p, q, and c, where p is the marginal landcover distribution, c is a scalar parameter that is an inverse measure of diagonal dominance, and q is a probability vector that determines the landcover category of daughter pixels conditional on the daughter being different from the mother. The square of the parameter (1-c) is found to be strongly correlated with the Kullback-Liebler distance between the actual model and the model with the same marginal p but with no spatial structure, and becomes a measure of spatial complexity for the model. Upper and lower bounds are obtained for the eigenvalues of this pqc model. These bounds show that when q is related to p in an appropriate way, the eigenvalue plots for the model are similar to those observed for the 102 watersheds of Pennsylvania. The spatial data matrices have more degrees of freedom than the submodels so the eigen-decomposition (which gives a perfect fit) cannot be used for fitting. Instead we minimize some criterion function measuring the distance between observed and expected frequencies, such as chi-square. However, due to the spatial dependence, the criterion function cannot be benchmarked against the chi-square distribution for goodness-of-fit tests. Goodness-of-fit for landscape models is a major open problem. Thursday, March 18 4:00 STATISTICS SEMINAR - Room 459 MSC G. P. Patil, Distinguished Lukacs Professor, BGSU, and C. Taillie, Senior Research Associate, Center for Statistical Ecology and Environmental Statistics, Department of Statistics, Penn State "Statistical issues and approaches for multiscale modeling and assessment of landscapes based on single-resolution thematic raster maps" Abstract: See above. Friday, March 19 3:30 Coffee 3:45 COLLOQUIUM - Room 459 MSC Barbara Moses and Waldemar Weber, Mathematics and Statistics, BGSU "The Seven-Eleven Problem" Abstract: A customer purchased four items at a Seven-Eleven Store. At first, the clerk multiplied their prices together and charged$7.11, but the customer protested, saying that the prices should
have been added instead.  What was the cost of each item, if the
price remained unchanged after making this correction?

While solving this problem and thereby answering this question, we
will have an opportunity to review general problem-solving
heuristics and to utilize popular symbol-manipulation software for
narrowing large search-spaces through a vigorous combination of
theory and practice.  Hopefully, some appropriate representations
of symmetric functions as well as interesting comparisons of
additive and multiplicative operations will be obtained along the
way.  Indeed, as we are careful to observe in our Summer Workshop
on Problem Solving (Math 470/586), "since problem solving depends
upon a theoretical contribution, it does more than answer getting."
This workshop, offered July 25 to August 1, not only considers the
educational uses of problems, but also explores effective ways to
approach a general variety of them.  Though most of the workshop
illustrations are drawn from precalculus mathematics, the
particular solution for the present example also requires some
differential calculus.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of March 22 - 26

Monday, March 22

2:30 GROUPS AND GEOMETRIES SEMINAR  - Room 459 MSC
Sergey Shpectorov, Mathematics and Statistics, BGSU
"Orthogonal and symplectic groups and geometries"

3:30 ANALYSIS SEMINAR  - Room 459 MSC
Neal Carothers, Mathematics and Statistics, BGSU
"The work of William Timothy Gowers, 1998 Fields Medalist"
Abstract: William Timothy Gowers was awarded the 1998 Fields
Medal for his work in Banach space theory, number theory, and
combinatorics.  We will briefly survey Gowers's work in Banach
space theory and, perhaps just as important, the work of those
who came before.  The talk will be as non-technical as I can
manage (given the subject): No proofs, but plenty of jargon!

Tuesday, March 23

4:00 STATISTICS SEMINAR  - Room 459 MSC
Hanfeng Chen, Mathematics and Statistics, BGSU
"Nonregular models"
Abstract: Standard statistical procedures often require that the
set-up model satisfy some regularity conditions. I will
discuss the consequences and difficulties in statistical
inference when these regularity conditions are not satisfied.

Friday, March 26

Spring meeting of the Ohio Section of the Mathematical Association of
America, in Dayton, March 26-27.

No colloquium this week.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of March 29 - April 2

Monday, March 29

2:30 GROUPS AND GEOMETRIES SEMINAR  - Room 459 MSC
Sergey Shpectorov, Mathematics and Statistics, BGSU
"Orthogonal and symplectic groups and geometries"

3:30 ANALYSIS SEMINAR  - Room 459 MSC
Neal Carothers, Mathematics and Statistics, BGSU
"The work of William Timothy Gowers, 1998 Fields Medalist, continued"

Tuesday, March 30

3:30 FACULTY MEETING  - Room 459 MSC
Annual evaluation procedures

Wednesday, March 31

2:30 GROUPS AND GEOMETRIES SEMINAR  - Room 459 MSC
Sergey Shpectorov, Mathematics and Statistics, BGSU
"Orthogonal and symplectic groups and geometries"

3:30 ALGEBRA SEMINAR  - Room 459 MSC
A. A. Ivanov, BGSU and Imperial College, London
"Y-groups"

Thursday, April 1

3:15 Coffee
3:45 COLLOQUIUM  - Room 459 MSC
Kanti Mardia, University of Leeds, England
"Statistical shape analysis and its applications"
Abstract: Objects are everywhere - natural and man-made.  With
advances in technology, images in 2-D and 3-D provide easily
accessible information on objects, especially their shapes.
The field of shape analysis gives methods for the study of the
shape of the objects where location, rotation and scale
information can be removed.  Assuming that a shape can be
described by its landmarks, there have been significant
the historical work started in early 1900 by Karl Pearson
where the measurements were mostly distances, measured by
using callipers.

Some statistical aspects of the field have been summarized in
the recent book on this topic: Dryden and Mardia (1998) Wiley.
We will describe the latest advances in statistical
methodology to measure, describe and compare the shape of
objects.  To make this material generally accessible, we start
from the analysis of triangles using Bookstein coordinates and
then proceed to describe Kendall's coordinates Procrustes
methods, tangent approximations, symmetry in shapes, growth
data, image warping, averaging and object recognition.  Shapes
and Direction both live in non-Euclidean spaces, and therefore
it is not surprising that these two areas share similar types
of strategies in theory and practice.  However, shape space is
more complex than directions.

Practical examples will be given from various fields including
medical imaging, face analysis and biology.  Open problems in
the field will be also highlighted.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of April 5 - 9

Monday, April 5

2:30 GROUPS AND GEOMETRIES SEMINAR  - Room 459 MSC
Sergey Shpectorov, Mathematics and Statistics, BGSU
"Orthogonal and symplectic groups and geometries"

3:30 ANALYSIS SEMINAR  - Room 459 MSC
Rebecca Sanders, Mathematics and Statistics, BGSU
"Salas' results on hypercyclic bilateral shifts"

Tuesday, April 6

4:00 STATISTICS SEMINAR  - Room 459 MSC
Gabor Szekely, Mathematics and Statistics, BGSU
"A unified approach for some non-parametric tests"

Wednesday, April 7

2:30 GROUPS AND GEOMETRIES SEMINAR  - Room 459 MSC
Sergey Shpectorov, Mathematics and Statistics, BGSU
"Orthogonal and symplectic groups and geometries"

3:30 ALGEBRA SEMINAR  - Room 459 MSC
To be announced; check the department's web page.

3:30 STATISTICS SEMINAR  - Room 304 MSC **** Note room ****
G. P. Patil, Distinguished Lukacs Professor, BGSU
C. Taillie, Senior Research Associate
Center for Statistical Ecology and Environmental Statistics,
Department of Statistics, Penn State University
"Statistical issues related to the implementation of benchmark
dose method"
Abstract: The seminar(s) will discuss the following and related
problems of mathematical and computational statistics:

Develop likelihood-based procedures for calculating
confidence limits on risk function and effective dose
(benchmark dose, BMD) for continuous responses with emphasis
on skew (nonnormal) distributed responses. Assess the
sensitivity to model mis-specification.  Examine the
statistical validity of BMD-determination by inversion of an
upper confidence curve on the risk function.

A benchmark dose (BMD) for continuous responses may be defined
as a lower confidence limit on the effective dose
corresponding to a specified risk level r. However,
calculating such a confidence limit is not straightforward.
By contrast, it is technically easier to obtain confidence
limits on the risk function R(d).  One approach that has been
suggested for BMD-determination is to first obtain a pointwise
upper confidence curve U(d) on the risk function and then to
invert this relationship by solving the equation U(d)=r.  The
solution d is purported to be the desired BMD, i.e., a lower
confidence limit on the effective dose corresponding to the
risk level r.

Background: The current approach to risk assessment for toxic
noncarcinogenic chemicals is based on the assumption that
there exists a threshold below which no adverse noncancer
health effects are expected under lifetime exposure.  Various
regulatory agencies estimate a safe'' exposure by first
determining an exposure level which has been shown to cause no
adverse effect in animals or humans and then apply
uncertainty'' factors to account for missing information.

Problems were identified with this methodology shortly after
it was adopted some 30 years ago.  The risk assessment
community has been searching for improved methods since that
time.  One suggestion that has received a great deal of
attention is to base the methodology on dose-response
modeling.  The idea is to estimate the effective dose (ED)
that causes some critical effect in a specified percentage of
the test animals (e.g., $ED_{05}$ or $ED_{10}$) and then to
designate the lower confidence limit for the effective dose as
the benchmark dose.''  This benchmark dose may then be
adjusted by uncertainty factors to arrive at the reference
dose (RfD) or reference concentration (RfC).

In spite of the fact that it is generally agreed that the
benchmark dose method addresses many of the shortcomings of
the current methodology, more than a decade has passed since
the benchmark dose method was suggested as an alternative.
One reason for this delay is that there are a number of
difficult statistical issues remaining.  While the potential
benefits have been recognized, risk assessors have been
understandably reluctant to adopt a methodology which is not
yet completely understood.

Thursday, April 8

4:00 STATISTICS SEMINAR  - Room 459 MSC
G. P. Patil, Distinguished Lukacs Professor, BGSU
"Statistical issues related to the implementation of benchmark
dose method"
Continuation of Wednesday's seminar; see above

Friday, April 9

3:30 Refreshments
3:45 Department of Mathematics and Statistics and
Department of Applied Statistics and Operations Research
Dennis K. J. Lin, Pennsylvania State University
"Designing computer experiments"
Abstract: Computer models/simulations can describe complicated
physical phenomena, such as performance characteristics of
integrated circuits.  However, to use these models for
scientific investigation, their generally running times and
mostly deterministic nature require a special designed
experiments.  Standard factorial designs are inadequate; in
the absence of one or more main effects, their replication
cannot be used to estimate error but instead produces
redundancy.  A number of alternative designs have been
proposed, but many can be burdensome computationally.  This
paper presents a new class of designs developed from the
rotation of a factorial design.  These rotated factorial
designs are very easy to construct and preserve many of the
attractive properties of standard factorial designs: they have
equally-spaced projections to univariate dimensions and
uncorrelated regression effect estimates (orthogonality).
They also rate comparably to maximin Latin hypercube designs
by the minimum interpoint distance criterion used in the
latter's construction.

About the speaker: Dr. Dennis Lin is a Professor of Management
Science and Statistics at the Penn State University.  His
research interests are quality engineering, industrial
statistics (design of experiment, reliability, statistical
process control, quality assurance) and response surface.  He
has published more than 50 papers in a wide variety of
journals, including Technometrics, Journal of the Royal
Statistical Society, Ser. C., Journal of Quality Technology,
and IEEE Transactions on Reliability.  Currently, he serves as
managing editor for Statistics Sinica; associate editor for
The American Statistician and Journal of Quality Technology;
and on the Applied Statistics Committee for the American
Statistical Association.  Dr. Lin is an elected fellow of the
American Statistical Association (ASA), an elected member of
the International Statistical Institute (ISI), a senior member
of the American Society for Quality (ASQ), a lifetime member
of the International Chinese Statistical Association (ICSA), a
fellow of the Royal Statistical Society, and has received the
Most Outstanding Presentation Award from SPES and ASA.

Midwest Group Theory Conference (tentative schedule)
See http://www-math.bgsu.edu/~sergey/conference.html for more
information.
Room 117 Olscamp Hall

10:30-11:20 Sasha Ivanov
11:30-12:20 Antonio Pasini

2:30-3:20 Ernie Shult
3:30-4:20 Mark Ronan
4:30-4:50 Valery Vermeulen
5:00-5:20 Richard Weiss

Saturday, April 10

10:00 Spring Swing 99
Golf scramble organized by BGSU Actuarial Science Society and
the History Society
Society President at jfaber@bgnet.bgsu.edu or 372-1178

Midwest Group Theory Conference (tentative schedule)
Room 095 Overman

9:30-10:20 Michael Aschbacher
10:30-11:20 Gernot Stroth
11:30-11:50 Alexander Stein

2:30-3:20 Ulrich Meierfrankenfeld
3:30-4:20 Ron Solomon
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of April 12 - 16

Monday, April 12

2:30 GROUPS AND GEOMETRIES SEMINAR  - Room 459 MSC
Sergey Shpectorov, Mathematics and Statistics, BGSU
"Orthogonal and symplectic groups and geometries"

3:30 Refreshments
3:45 COLLOQUIUM  - Room 459 MSC
***** Note different day *****
Nathan Feldman, Michigan State University
"Pure subnormal operators have cyclic adjoints"
Abstract: In this talk we shall discuss various classes of
linear operators on Hilbert space, including normal and
subnormal operators.  We shall be interested in the cyclic
behavior of these operators and we shall discuss and answer an
old problem about subnormal operators.  Several examples will
also be given.

Tuesday, April 13

4:00 STATISTICS SEMINAR  - Room 459 MSC
Arthur Yeh, Applied Statistics and Operations Research, BGSU

Wednesday, April 14

2:30 GROUPS AND GEOMETRIES SEMINAR  - Room 459 MSC
Sergey Shpectorov, Mathematics and Statistics, BGSU
"Orthogonal and symplectic groups and geometries"

3:30 ALGEBRA SEMINAR  - Room 459 MSC
Cecile Huybrechts, Queen Mary College (University of London)
"The flavor of diagram geometry"
This talk is supposed to be very elementary, with many
examples and nice pictures.

3:30 STATISTICS SEMINAR  - Room 304 MSC **** Note room ****
G. P. Patil, Distinguished Lukacs Professor, BGSU
"Environmental sampling and observational economy with emphasis
on encounter sampling, composite sampling, ranked set sampling,
Abstract:
Encounter Sampling: Surveys for monitoring changes and trends in
our environment and its resources involve some unusual
conceptual and methodological issues pertaining to the
observer, the observed, and the observational process.
Problems that are not typical of current statistical theory
and practice arise.  In statistical ecology and environmental
statistics, the theory of weighted distributions provides a
perceptive and unifying approach for the problems of model
specification and data interpretation within the context of
encounter sampling.  Appropriate statistical modeling
approaches help accomplish unbiased inference in spite of the
economic setup.

Adaptive Sampling: Several ecological and environmental
populations are spatially distributed in a clumped
manner. They are not very efficiently sampled by conventional
probability based sampling designs.  Adaptive sampling is
initial sample is obtained using a conventional probability
based procedure.  When the variable of interest for a sampling
unit satisfies a given criterion, however, additional units in
the neighborhood are selected in the next sampling stage.
This procedure is repeated until no new units satisfy the
criterion, or the conditions of a stopping rule are satisfied.

With the recent growth of geographic information systems
(GIS), spatial data coverages for landscapes are becoming
universal.  Such information, obtained mainly from digitized
maps and remotely sensed sources, may provide a powerful aid
to adaptive cluster sampling for increasing the efficiency of
sampling clustered populations from across a two-dimensional
surface.

Observational Economy: Sampling consists of selection,
acquisition, and quantification of a part of the population.
While selection and acquisition apply to physical sampling
units of the population, quantification pertains only to the
variable of interest, which is a particular characteristic of
the sampling units.  A minimum requirement is that
identification and acquisition of sampling units be
inexpensive as compared with their quantification.

Composite Samples: Composite sampling has its roots in what is
known as group testing.  An early application of group testing
was to estimate the prevalence of plant virus transmission by
insects.  In this application, insect vectors were allowed to
feed upon host plants, thus allowing the disease transmission
rate to be estimated from the number of plants that
subsequently become diseased.  In light of recent
developments, composite sampling is increasingly becoming an
acceptable practice for sampling soils, biota, and bulk
materials.

A recent breakthrough with composite samples may be worth
mentioning.  The individual sample with the highest value,
along with those individual samples comprising an upper
percentile, can now be identified with minimal retesting.
This ability is extremely important when "hot spots" need to
be identified such as with soil monitoring at a hazardous
waste site.

Ranked Set Samples: Ranked set sampling is a little known method
of sampling that allows the use of auxiliary information for
improving upon the performance of simple random sampling.  The
primary requirement is the ability to rank small sets of
sampling units with respect to the variable of interest
without actually measuring that variable.  Subjective
judgment, prior experience, visual inspection, and concomitant
variables are among the types of auxiliary information that
may be used to achieve the ranking.  The method does not
prescribe any specific form or structure for the auxiliary
information and the method is accordingly quite robust.
Errors in ranking are permitted, although the better the
ranking, the better the performance of the method.

Ranked set sampling (RSS), induces stratification of the whole
population at the sample level, and provides a kind of double
sampling estimator that is robust.

Friday, April 16

3:15 Refreshments
3:45 COLLOQUIUM  - Room 459 MSC
Rod Little, University of Michigan
"Multiple imputation for missing data in clinical trials"
Abstract: Multiple imputation is a useful tool for handling
missing data in statistical analysis, but it has received
limited use in clinical trials. I review the basic concepts,
theory and application of the method. I then discuss strengths
and weaknesses of multiple imputation compared with
alternative approaches to missing data in clinical
trials. Multiple imputation has a number of useful properties
for clinical trial settings. In particular, the method (a)
corrects the major deficiencies of single imputation methods,
(b) promotes uniform treatment of the missing values across
analyses, (c) allows the incorporation of information into the
imputations that is not used in the main analysis, (d) limits
the effects of model misspecification to the imputations
themselves, and (e) allows the assessment of sensitivity to
plausible alternative imputation models. These features are
illustrated using an application of multiple imputation to a
clinical trial on Tacrine for the treatment of the Alzheimer's
Disease, previously discussed in Little and Yau (1996).

About the Speaker: Dr. Roderick Little is Professor in the
Department of Biostatistics and Statistics at the University
of Michigan, Ann Arbor. He is also Chairman of the
Biostatistics Department.  He is the author of numerous
research papers, and is co-author with Donald Rubin of
Statistical Analysis with Missing Data.  He was a former
Editor of the Journal of the American Statistical Association.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of April 19 - 23

Monday, April 19

2:30 GROUPS AND GEOMETRIES SEMINAR  - Room 459 MSC
Sergey Shpectorov, Mathematics and Statistics, BGSU
"Orthogonal and symplectic groups and geometries"

3:30 ANALYSIS SEMINAR  - Room 459 MSC
Tony Tang, Mathematics and Statistics, BGSU
"The P1 nonconforming FEM with accurate flux for elliptic
problem without using mixed methods is a finite volume box
method"

Tuesday, April 20

4:00 STATISTICS SEMINAR  - Room 459 MSC
Arthur Yeh, Applied Statistics and Operations Research, BGSU
"Control charts"

Wednesday, April 21

2:30 GROUPS AND GEOMETRIES SEMINAR  - Room 459 MSC
Sergey Shpectorov, Mathematics and Statistics, BGSU
"Orthogonal and symplectic groups and geometries"

3:30 ALGEBRA SEMINAR  - Room 459 MSC
To be announced

3:30 STATISTICS SEMINAR  - Room 304 MSC **** Note room ****
G. P. Patil, Distinguished Lukacs Professor, BGSU
"Environmental sampling and observational economy with emphasis
on encounter sampling, composite sampling, ranked set sampling,
Abstract:
Encounter Sampling: Surveys for monitoring changes and trends in
our environment and its resources involve some unusual
conceptual and methodological issues pertaining to the
observer, the observed, and the observational process.
Problems that are not typical of current statistical theory
and practice arise.  In statistical ecology and environmental
statistics, the theory of weighted distributions provides a
perceptive and unifying approach for the problems of model
specification and data interpretation within the context of
encounter sampling.  Appropriate statistical modeling
approaches help accomplish unbiased inference in spite of the
economic setup.

Adaptive Sampling: Several ecological and environmental
populations are spatially distributed in a clumped
manner. They are not very efficiently sampled by conventional
probability based sampling designs.  Adaptive sampling is
initial sample is obtained using a conventional probability
based procedure.  When the variable of interest for a sampling
unit satisfies a given criterion, however, additional units in
the neighborhood are selected in the next sampling stage.
This procedure is repeated until no new units satisfy the
criterion, or the conditions of a stopping rule are satisfied.

With the recent growth of geographic information systems
(GIS), spatial data coverages for landscapes are becoming
universal.  Such information, obtained mainly from digitized
maps and remotely sensed sources, may provide a powerful aid
to adaptive cluster sampling for increasing the efficiency of
sampling clustered populations from across a two-dimensional
surface.

Observational Economy: Sampling consists of selection,
acquisition, and quantification of a part of the population.
While selection and acquisition apply to physical sampling
units of the population, quantification pertains only to the
variable of interest, which is a particular characteristic of
the sampling units.  A minimum requirement is that
identification and acquisition of sampling units be
inexpensive as compared with their quantification.

Composite Samples: Composite sampling has its roots in what is
known as group testing.  An early application of group testing
was to estimate the prevalence of plant virus transmission by
insects.  In this application, insect vectors were allowed to
feed upon host plants, thus allowing the disease transmission
rate to be estimated from the number of plants that
subsequently become diseased.  In light of recent
developments, composite sampling is increasingly becoming an
acceptable practice for sampling soils, biota, and bulk
materials.

A recent breakthrough with composite samples may be worth
mentioning.  The individual sample with the highest value,
along with those individual samples comprising an upper
percentile, can now be identified with minimal retesting.
This ability is extremely important when "hot spots" need to
be identified such as with soil monitoring at a hazardous
waste site.

Ranked Set Samples: Ranked set sampling is a little known method
of sampling that allows the use of auxiliary information for
improving upon the performance of simple random sampling.  The
primary requirement is the ability to rank small sets of
sampling units with respect to the variable of interest
without actually measuring that variable.  Subjective
judgment, prior experience, visual inspection, and concomitant
variables are among the types of auxiliary information that
may be used to achieve the ranking.  The method does not
prescribe any specific form or structure for the auxiliary
information and the method is accordingly quite robust.
Errors in ranking are permitted, although the better the
ranking, the better the performance of the method.

Ranked set sampling (RSS), induces stratification of the whole
population at the sample level, and provides a kind of double
sampling estimator that is robust.

Friday, April 23

1999 Lukacs Symposium; see http://www-math.bgsu.edu/symposium/ for
complete information.  Also see abstracts posted on 4th floor of MSC.

8:00 Registration outside Olscamp 111
9:30 Inaugural  - Olscamp 111
10:00 Coffee break
10:30 Perspectives on environmental statistics - Olscamp 111

12:30 Lunch

2:00 Three simultaneous sessions in Olscamp 111, 220, 224
4:00 Coffee break
4:30 Three simultaneous sessions in Olscamp 111, 220, 224
8:00 Mixer at Kaufman's at the Lodge, Friendship room
All are invited!

Saturday, April 24

1999 Lukacs Symposium continues

8:00 Three simultaneous sessions in Olscamp 111, 213, 215
10:00 Coffee break
10:30 Four simultaneous sessions in Olscamp 111, 211, 213, 215

12:30 Lunch

2:00 Four simultaneous sessions in Olscamp 111, 211, 213, 215
4:00 Coffee break
4:30 Perspectives on the next century - Olscamp 111

7:00 Reception at Kaufman's at the Lodge, Atrium
7:30 Banquet (contact Jim Albert immediately if you want to attend)
8:30 Award ceremony
9:30 Millennium milestones
10:00 Millennium in transition; NASA presentation

Sunday, April 25

8:00 Perspectives on the next century - Olscamp 111
10:00 Coffee break
10:30 Perspectives on the next century - Olscamp 111

12:30 Lunch

2:00 Two simultaneous sessions in Olscamp 213, 215
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of April 26 - 30

Monday, April 26

2:30 GROUPS AND GEOMETRIES SEMINAR  - Room 459 MSC
Sergey Shpectorov, Mathematics and Statistics, BGSU
"Orthogonal and symplectic groups and geometries"

3:30 ANALYSIS SEMINAR  - Room 459 MSC
Tony Tang, Mathematics and Statistics, BGSU
"Analysis and implementation of mixed finite volume methods on
triangle grid as nonconforming FEM"

Wednesday, April 28

2:30 GROUPS AND GEOMETRIES SEMINAR  - Room 459 MSC
Sergey Shpectorov, Mathematics and Statistics, BGSU
"Orthogonal and symplectic groups and geometries"

3:30 ALGEBRA SEMINAR  - Room 459 MSC
Warren McGovern, Mathematics and Statistics, BGSU
"Rings of quotients"

3:30 STATISTICS SEMINAR  - Room 304 MSC **** Note room ****
G. P. Patil, Distinguished Lukacs Professor, BGSU
"Environmental sampling and observational economy with emphasis
on encounter sampling, composite sampling, ranked set sampling,
Abstract:
Encounter Sampling: Surveys for monitoring changes and trends in
our environment and its resources involve some unusual
conceptual and methodological issues pertaining to the
observer, the observed, and the observational process.
Problems that are not typical of current statistical theory
and practice arise.  In statistical ecology and environmental
statistics, the theory of weighted distributions provides a
perceptive and unifying approach for the problems of model
specification and data interpretation within the context of
encounter sampling.  Appropriate statistical modeling
approaches help accomplish unbiased inference in spite of the
economic setup.

Adaptive Sampling: Several ecological and environmental
populations are spatially distributed in a clumped
manner. They are not very efficiently sampled by conventional
probability based sampling designs.  Adaptive sampling is
initial sample is obtained using a conventional probability
based procedure.  When the variable of interest for a sampling
unit satisfies a given criterion, however, additional units in
the neighborhood are selected in the next sampling stage.
This procedure is repeated until no new units satisfy the
criterion, or the conditions of a stopping rule are satisfied.

With the recent growth of geographic information systems
(GIS), spatial data coverages for landscapes are becoming
universal.  Such information, obtained mainly from digitized
maps and remotely sensed sources, may provide a powerful aid
to adaptive cluster sampling for increasing the efficiency of
sampling clustered populations from across a two-dimensional
surface.

Observational Economy: Sampling consists of selection,
acquisition, and quantification of a part of the population.
While selection and acquisition apply to physical sampling
units of the population, quantification pertains only to the
variable of interest, which is a particular characteristic of
the sampling units.  A minimum requirement is that
identification and acquisition of sampling units be
inexpensive as compared with their quantification.

Composite Samples: Composite sampling has its roots in what is
known as group testing.  An early application of group testing
was to estimate the prevalence of plant virus transmission by
insects.  In this application, insect vectors were allowed to
feed upon host plants, thus allowing the disease transmission
rate to be estimated from the number of plants that
subsequently become diseased.  In light of recent
developments, composite sampling is increasingly becoming an
acceptable practice for sampling soils, biota, and bulk
materials.

A recent breakthrough with composite samples may be worth
mentioning.  The individual sample with the highest value,
along with those individual samples comprising an upper
percentile, can now be identified with minimal retesting.
This ability is extremely important when "hot spots" need to
be identified such as with soil monitoring at a hazardous
waste site.

Ranked Set Samples: Ranked set sampling is a little known method
of sampling that allows the use of auxiliary information for
improving upon the performance of simple random sampling.  The
primary requirement is the ability to rank small sets of
sampling units with respect to the variable of interest
without actually measuring that variable.  Subjective
judgment, prior experience, visual inspection, and concomitant
variables are among the types of auxiliary information that
may be used to achieve the ranking.  The method does not
prescribe any specific form or structure for the auxiliary
information and the method is accordingly quite robust.
Errors in ranking are permitted, although the better the
ranking, the better the performance of the method.

Ranked set sampling (RSS), induces stratification of the whole
population at the sample level, and provides a kind of double
sampling estimator that is robust.

Friday, April 30

No colloquium until Fall semester.  Enjoy the summer!
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of May 17 - 21

Wednesday, May 19

11:00 DISSERTATION DEFENSE  - Room 459 MSC
John Steele, Mathematics and Statistics, BGSU
"Reliable systems from unreliable components"

Dissertation defenses are open to the public.
John will make a presentation of his work, to be followed
by questions from the dissertation committee.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of May 31 - June 4

Monday, May 31

Memorial Day.  No classes.

Thursday, June 3

3:00 DISSERTATION DEFENSE  - Room 459 MSC
Norm Preston, Mathematics and Statistics, BGSU
"Bayesian model selection and criticism in generalized linear models"

Dissertation defenses are open to the public.
Norm will make a presentation of his work, to be followed
by questions from the dissertation committee.

Friday, June 4

12:00 Celebration for Norm Preston and John Steele - Carter Park
Everyone is welcome.
Contact Jim Albert and/or Gabor Szekely for details.

Carter park is on the east side of Bowling Green, several blocks
south of the BGSU football stadium, near the BG water tower.
The pavilion we have reserved is one of the two among the trees
toward the south side of the park.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of August 23 - 27

Monday, August 23

Opening Day events

9:30 Coffee  - Lenhart Grand Ballroom, University Union
10:00 President Ribeau - Lenhart Grand Ballroom, University Union

11:00 Arts and Sciences Faculty Meeting  - Ballroom
12:00 Arts and Sciences Faculty Reception  - Campus Room, lunch provided

1:00 Arts and Sciences Faculty Advisors meeting  - 121 West Hall
1:30 College of Education Advisors meeting  - Jensen Audit 115 Education

2:30 Meeting of Graduate Faculty with Steve Ballard  - 210 MSC

3:30 Mathematics Faculty meeting  - MSC 459

Tuesday, August 24

11:00 Convocation for new undergraduates, faculty invited  - Anderson Arena

11:30 - 2:30 All-campus picnic  - lawn in front of University Hall

Wednesday, August 25

First day of classes

Friday, August 27

3:30 "COLLOQUIUM"  - Alumni Room, third floor of Student Union
This is a purely social event, and is offered as an opportunity
for the entire department to get together.  We will have light
refreshments and a little fellowship, but no speaker and no
every effort to attend.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of August 30 - September 3

Tuesday, August 31

1:00 - 3:00 LUKACS LECTURE  - Room 459 MSC
Kanti V. Mardia, Distinguished Lukacs Professor, BGSU
University of Leeds, England
"Introduction: Shape Coordinates Systems and Shape Distance"

Abstract: Introduction and motivating examples from biology,
medicine and images analysis.  Size Measures.  Simple shape
coordinate systems, including Bookstein coordinates and
Kendall's spherical coordinates for triangles.

The use of complex notation for planar shape analysis.  Shape
distance.  Procrustes matching, mean shape and shape
variability.

The shape space and pre-shape space.  Geometrical issues.

[It would help to have some knowledge of multivariate
analysis, in particular principal component analysis.
Otherwise the talk is self-contained.]

Thursday, September 2

1:00 - 3:00 LUKACS LECTURE  - Room 459 MSC
Kanti V. Mardia, Distinguished Lukacs Professor, BGSU
University of Leeds, England
"Tangent Approximations, Data Analysis and Visualization Tools"

Abstract: Ordinary and Generalized Procrustes analysis for
higher dimensions.  Shape variability and principal
components analysis.  Testing for shape difference, under
isotropy and general covariances.

A demo will be given to highlight Visualization Tools.

Friday, September 3

3:30 Coffee
3:45 COLLOQUIUM  - Room 459 MSC

***** Postponed until Friday, September 10 *****

Waldemar Weber, Mathematics and Statistics, BGSU
"Preferential personality types and learning styles in mathematics"
Abstract: Katharine Briggs and her daughter, Isabel Myers, used
the clinical experiences of Carl Jung to formulate a theory of
preferential personality types that provided an acceptable
alternative to the psychoanalytic theory of Sigmund Freud.
More recent psychological research started producing some
results of educational interest, concerning the basic skills
of reading, writing , and mathematics, and last year, on
October 2, I introduced an indirect algorithm for determining
the appropriate type.  Beside reviewing the implementation of
this algorithm, subsequent experience with my new approach
enables me to discuss how it can help us to communicate
mathematics to our students.  Follow the forked path:

ITS Scientific Computing Laboratory
(241 Mathematical Sciences Building)

Scientific Lab Server:Class Folders: Learning Styles-Weber:
1 Learning Styles in Math 2.4, or
2 Myers-Briggs Type Indicator (Form G)

on the computer network, provided by Instructional Technology
Services at Bowling Green State University, for a personal
demonstration.  This software is Macintosh specific (Macintosh
is a trademark of Apple Computer and the Myers-Briggs Type
Indicator is a trademark of the Consulting Psychologists
Press).

Professor Kanti V. Mardia of the University of Leeds is visiting Bowling Green State University during August and September as Distinguished Lukacs Professor in the Department of Mathematics and Statistics. He will give five two-hour lectures on Statistical Shape Analysis over the next few weeks. See an announcement of the lectures and directions for getting to the department. Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of September 6 - 10

Monday, September 6

Labor Day, no classes or seminars scheduled.

Tuesday, September 7

1:00 - 3:00 LUKACS LECTURE  - Room 459 MSC
Kanti V. Mardia, Distinguished Lukacs Professor, BGSU, and
University of Leeds, England
"Statistical models and inference"
Abstract:  Uniform, complex, Bingham and complex Watson
distributions.  Offset normal shape distributions. Bayesian
Analysis. Size-and-shape and allometry.  Size-and-shape
distributions.

Wednesday, September 8

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Juan Bes, Mathematics and Statistics, BGSU
"Linear subspaces of hypercyclic vectors"

Thursday, September 9

1:00 - 3:00 LUKACS LECTURE  - Room 459 MSC
Kanti V. Mardia, Distinguished Lukacs Professor, BGSU, and
University of Leeds, England
"Deformations"
Abstract: Deformations for describing shape change, including
thin-plate splines and kriging.  Transformation grids.
Partial Warps, Relative Warps.

Friday, September 10

3:30 Coffee
3:45 COLLOQUIUM  - Room 459 MSC
Waldemar Weber, Mathematics and Statistics, BGSU
"Preferential personality types and learning styles in mathematics"
Abstract: Katharine Briggs and her daughter, Isabel Myers, used
the clinical experiences of Carl Jung to formulate a theory of
preferential personality types that provided an acceptable
alternative to the psychoanalytic theory of Sigmund Freud.
More recent psychological research started producing some
results of educational interest, concerning the basic skills
of reading, writing , and mathematics, and last year, on
October 2, I introduced an indirect algorithm for determining
the appropriate type.  Beside reviewing the implementation of
this algorithm, subsequent experience with my new approach
enables me to discuss how it can help us to communicate
mathematics to our students.  Follow the forked path:

ITS Scientific Computing Laboratory
(241 Mathematical Sciences Building)

Scientific Lab Server:Class Folders: Learning Styles-Weber:
1 Learning Styles in Math 2.4, or
2 Myers-Briggs Type Indicator (Form G)

on the computer network, provided by Instructional Technology
Services at Bowling Green State University, for a personal
demonstration.  This software is Macintosh specific (Macintosh
is a trademark of Apple Computer and the Myers-Briggs Type
Indicator is a trademark of the Consulting Psychologists
Press).

Professor Kanti V. Mardia of the University of Leeds is visiting Bowling Green State University during August and September as Distinguished Lukacs Professor in the Department of Mathematics and Statistics. He will give five two-hour lectures on Statistical Shape Analysis over the next few weeks. See an announcement of the lectures and directions for getting to the department. Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of September 13 - 17

Tuesday, September 14

1:00 - 3:00 LUKACS LECTURE  - Room 459 MSC
Kanti V. Mardia, Distinguished Lukacs Professor, BGSU, and
University of Leeds, England
"Shapes and images"
Abstract: Warping and image averaging.  High-level Bayesian
image analysis and shape priors.

2:30 ALGEBRA SEMINAR  - Room 447 MSC
Inna Korchagina, Ohio State University
"Signalizers in finite groups"
Abstract: The main theorem is: let G be a finite group of Lie
type in characteristic r, t an involutory automorphism of G,
and X a p-subgroup of automorphisms of G, such that
1) p is odd
2) X=[X,t]
3) C(t) in G normalizes X
Then X is trivial, unless either p=r, or r=2 and t is a graph
automorphism of A(2n,2^a) (untwisted and twisted).

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 400 MSC
Tong Sun, Mathematics and Statistics, BGSU
"Finite element methods for parameter-dependent problems from
solid mechanics, part II"

Wednesday, September 15

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Juan Bes, Mathematics and Statistics, BGSU
"Linear subspaces of hypercyclic vectors II"

Friday, September 17

3:30 Coffee
3:45 COLLOQUIUM  - Room 459 MSC
Jim Albert, Mathematics and Statistics, BGSU
"Using model/data simulations to detect streakiness"
Abstract: A simulation-based approach is proposed for
approximating a Bayesian analysis.  Parameters and data are
simulated from a Bayesian model and inference about a
parameter is performed by exploring the set of parameter
values conditional a set of values of a simulated statistic.
The approach is used to learn about parameters of a streaky
model on the basis of a statistic used to measure streakiness.
The method is illustrated to detect streakiness in baseball
hitting data and basketball shooting data.

Professor Kanti V. Mardia of the University of Leeds is visiting Bowling Green State University during August and September as Distinguished Lukacs Professor in the Department of Mathematics and Statistics. He will give five two-hour lectures on Statistical Shape Analysis over the next few weeks. See an announcement of the lectures and directions for getting to the department. Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of September 20 - 24

Tuesday, September 21

1:00 STATISTICS SEMINAR  - Room 459 MSC
Victor Patrangenaru, Georgia State University
"Asymptotic probability distributions for Frechet means on
manifolds, with applications to shapes and projective shapes"
Abstract:  This talk is related to the topics in shape analysis
that Professor Mardia has been lecturing about.

2:30 ALGEBRA SEMINAR  - Room 447 MSC
Steve McCleary, Mathematics and Statistics, BGSU
"Lattice-ordered permutation groups"
Abstract: This is the first of a series of talks.  These talks
will begin at the beginning, assuming no knowledge of
lattice-ordered groups and hardly any knowledge of unordered
permutation groups.

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC
Craig Zirbel, Mathematics and Statistics, BGSU
"An introduction to wavelets"
Abstract: Since the late 1980's, wavelets have been a very hot
topic in applied mathematics, signal processing, and other
applied areas.  They are similar in some ways to Fourier
series, but have properties that make them more appropriate in
many settings.

This talk is intended to be accessible to all faculty and
students (even junior and seniors) in the department.  It is
intended to give some idea what wavelets are about and how
they can be used.  No prior knowledge of Fourier analysis is
needed.  In fact, although wavelets are often discussed in
relation to Fourier series, in this talk they will be
discussed on their own merits for the most part.

This seminar was organized as a group effort to learn about
wavelets.  We will more or less follow the book Introduction
to Wavelets and Wavelet Transforms by C. S. Burrus,
R. A. Gopinath, and H. Guo.  (A few of us have copies that one
could borrow for short periods.)  Craig Zirbel will speak a
few times and then others will be encouraged to give

Note that the topic of this week's analysis seminar is related.

Wednesday, September 22

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Neal Carothers, Mathematics and Statistics, BGSU
"An introduction to frames"
Abstract: A sequence of vectors in a separable Hilbert space is
called a frame if it is "similar to" an orthonormal basis (in
a sense that will be made precise).  Frames arose from the
study of discrete wavelet transforms and are currently a hot
research area.  We will give a brief introduction to the
theory as well as the history of frames.

Friday, September 24

No colloquium scheduled for this week on account of the OCTM meeting.

Professor Kanti V. Mardia of the University of Leeds is visiting Bowling Green State University during August and September as Distinguished Lukacs Professor in the Department of Mathematics and Statistics. He will give five two-hour lectures on Statistical Shape Analysis over the next few weeks. See an announcement of the lectures and directions for getting to the department. Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of September 27 - October 1

Tuesday, September 28

2:30 ALGEBRA SEMINAR  - Room 447 MSC
Steve McCleary, Mathematics and Statistics, BGSU
"Lattice-ordered permutation groups, Part II"
Abstract:  This is the second of a series of talks.  These talks
will begin at the beginning, assuming no knowledge of
lattice-ordered groups and hardly any knowledge of unordered
permutation groups.

2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC
Craig Zirbel, Mathematics and Statistics, BGSU
"An introduction to wavelets, Part II"
Abstract: This talk will explore the general relation between
the scaling function and the wavelet, incorporating the ideas
of multiresolution analysis.  Numerical computation of the
discrete wavelet transform coefficients and the relation to
filter banks will be discussed.

Matlab programs and data files related to last week's talk can
be obtained at http://www-math.bgsu.edu/~zirbel/wavelets/

This seminar was organized as a group effort to learn about
wavelets.  We will more or less follow the book Introduction
to Wavelets and Wavelet Transforms by C. S. Burrus,
R. A. Gopinath, and H. Guo.  A few of us have copies that one
could borrow for short periods.

Note that the topic of this week's analysis seminar is related.

Wednesday, September 29

2:30 ANALYSIS SEMINAR  - Room 459 MSC
Neal Carothers, Mathematics and Statistics, BGSU
"An introduction to frames, Part II"
Abstract:  A sequence of vectors in a separable Hilbert space is
called a frame if it is "similar to" an orthonormal basis (in
a sense that will be made precise).  Frames arose from the
study of discrete wavelet transforms and are currently a hot
research area.  We will continue with a brief introduction to
the theory as well as the history of frames.

Friday, October 1

3:30 Refreshments
3:45 COLLOQUIUM  - Room 459 MSC
Dror Varolin, University of Michigan
"The geometry of complex spaces"
Abstract: We explore various mechanisms which rigidify
symmetries in complex spaces.  These mechanisms are not
inherent in the definition of complex spaces, and we will show
this by looking at some examples.

Sunday, October 3

1:00 KME PICNIC  - Bellard Shelter, Carter Park, Bowling Green

The Bowling Green chapter of Kappa Mu Epsilon would like to
invite you to our picnic, which will be held on Sunday, October
3rd.  The picnic will begin at 1:00PM with a game of Frisbee
golf for those who want to participate.  We will be providing
food (of course), which will be served once the game is over (or
when we get too hungry to wait).  Please come to have some fun
professors!  Anyone is welcome to attend!

The picnic will be free for members of KME and $1 for non-members. Transportation from campus will be available. If you need a ride, please e-mail sabell@bgnet.bgsu.edu so details can be arranged. If you plan to attend, please e-mail the above address or Pam Richardson (pamr@bgnet.bgsu.edu) so that we can get a rough estimate of how many people will be there. Don't worry - you can still attend if you don't RSVP! Please join us for this great opportunity to mingle and have some fun! In the unfortunate event that the weather should not cooperate, the picnic will still be held at an alternate venue (most likely the Math Science building). Carter Park is located south of BGSU near I-75. The entrance is off of Campbell Hill Road under the Bowling Green water tower. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of October 4 - 7 Tuesday, October 5 2:30 ALGEBRA SEMINAR - Room 447 MSC Steve McCleary, Mathematics and Statistics, BGSU "Lattice-ordered permutation groups, Part III" This is the third in a series of talks. 2:30 SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC Craig Zirbel, Mathematics and Statistics, BGSU "An introduction to wavelets, Part III" Abstract: Beginning with a scaling function, one can show the existence of a wavelet whose dilates and translates form an orthonormal basis for L^2. The discrete wavelet transform (DWT) of a function is the set of coefficients when the function is written in terms of this basis. We will discuss these facts and some ideas from filter banks that help to compute the DWT coefficients. Matlab programs and data files related to the first talk can be obtained at http://www-math.bgsu.edu/~zirbel/wavelets/ Note that the topic of this week's analysis seminar is related. Wednesday, October 6 2:30 ANALYSIS SEMINAR - Room 459 MSC Neal Carothers, Mathematics and Statistics, BGSU "An introduction to frames, Part III" Abstract: The grand finale of this series of talks is Casazza's proof that every frame can be written as a sum of three (but not two) orthonormal bases. Thursday, October 7 1:30 LUKACS LECTURE - Room 400 MSC Raju Govindarajulu, Distinguished Lukacs Professor, BGSU and University of Kentucky "Renyi representation of order statistics" Friday, October 8 1:30 LUKACS LECTURE - Room 400 MSC Raju Govindarajulu, Distinguished Lukacs Professor, BGSU and University of Kentucky "Locally most powerful rank tests: random effects model" This will be a two-hour talk. 3:30 Refreshments 3:45 COLLOQUIUM - Room 459 MSC Jie Chen, University of Missouri-Kansas City "Change-point detection and estimation" Abstract: In this talk, a survey of the change-point detection and estimation will be given. Change-point problem primarily arose from the process of quality control in which one concerns about the outputs of a production line and wishes to find any departure from an acceptable standard of the product. The problem of abrupt changes is often encountered in various experimental and mathematical sciences. From a statistical point of view, we wish to infer (detect) whether there is a statistically significant change-point in a sequence of chronologically ordered data. In the case that there is a statistically significant change-point, we also will locate (estimate) the change-point. Some major methods for the detection and estimation of a change-point and some results will be discussed in the talk. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of October 11 - 15 Tuesday, October 12 2:30 ALGEBRA SEMINAR - Room 447 MSC Steve McCleary, Mathematics and Statistics, BGSU "Lattice-ordered permutation groups, Part IV" This is the fourth in a series of talks. 2:30 SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC Mark Jarvis, Mathematics and Statistics, BGSU "Fourier domain processing of real-time signals" Abstract: When applying Fourier Methods to even well defined sampled functions in L^2, there are still effects such as Gibbs' phenomena which prevent accurate reconstruction of the signal. When discussing real-time signals, a time dependent frequency spectrum must also be accounted for. Though there are analog methods for processing such signals, by far most methods are numerical. A graphical discussion of linear systems' response will introduce issues and effects of the Analog to Digital, Windowing, and Digital to Analog processes on real-time signal spectrums such as those obtained in voice and image processing. By understanding the limitations of Fourier Processing, we hopefully will better understand the reasons behind the highly visible efforts in Wavelet Transform research. Wednesday, October 13 2:30 ANALYSIS SEMINAR - Room 459 MSC Ron Taylor, Mathematics and Statistics, BGSU "A Banach space operator with a prescribed orbit" Thursday, October 14 1:30 LUKACS LECTURE - Room 400 MSC Raju Govindarajulu, Distinguished Lukacs Professor, BGSU and University of Kentucky "Application of rank tests to random effects model" Friday, October 15 1:30 LUKACS LECTURE - Room 400 MSC Raju Govindarajulu, Distinguished Lukacs Professor, BGSU and University of Kentucky "Chernoff-Savage class of statistics: asymptotic theory" This will be a two-hour talk. 3:30 Refreshments 3:45 COLLOQUIUM - Room 459 MSC Truc Nguyen, Mathematics and Statistics, BGSU "Exact EDF goodness-of-fit tests for inverse Gaussian distributions" Abstract: Characterizations of inverse Gaussian distributions in different cases of unknown parameters based on the uniformly minimal variance unbiased estimator (UMVUE) of the density function are studied. Using these characterization results as transformations to change the composite null hypothesis that "F is an inverse Gaussian distribution" to an equivalent simple null hypothesis, then exact empirical distribution function (EDF) goodness-of-fit tests for inverse Gaussian distributions are constructed. In the case of an inverse Gaussian(m,b) distribution with known b and unknown m, a chi-square test is also proposed. The powers of these tests are estimated by Monte-Carlo method at several different alternative distributions. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of October 18 - 22 Monday, October 18 7:30 PM KME MEETING - Room 459 MSC On Monday, October 18th, the Bowling Green chapter of Kappa Mu Epsilon, a national mathematics honorary society, will be holding its first meeting. The meeting will be held in room 459 in the Math Science building, and it will begin at 7:30 PM. This is a great opportunity to meet other students involved in the math department! All students (and faculty) are welcome, so feel free to bring your friends. We will be having free food, and Dr. Curtis Bennett will be speaking on "Lights out," a very fun (but addicting) game that has been entertaining many children and adults for years. This is a great talk, and I encourage everyone to attend! Please help us make this a fantastic year! Please e-mail Pam Richardson, pamr@bgnet.bgsu.edu if you have any questions or concerns. Tuesday, October 19 2:30 ALGEBRA SEMINAR - Room 447 MSC Steve McCleary, Mathematics and Statistics, BGSU "Lattice-ordered permutation groups, Part V" This is the fifth in a series of talks. 2:30 SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC Neal Carothers, Mathematics and Statistics, BGSU "Details from Daubechies" Abstract: This talk will give a brief introduction to the Fourier transform, and then Fourier transform techniques will be used to outline the proof of the existence of the "mother wavelet" which is orthogonal to the scaling function and whose translates and dilates are mutually orthogonal. Wednesday, October 20 2:30 ANALYSIS SEMINAR - Room 459 MSC Kit Chan, Mathematics and Statistics, BGSU "Fredholm operators" Thursday, October 21 9:30 Ph.D. DISSERTATION DEFENSE - Room 330 MSC Shenrong Tang, Mathematics and Statistics, BGSU "Mixed finite volume methods for elliptic partial differential equations" 1:30 LUKACS LECTURE - Room 400 MSC Raju Govindarajulu, Distinguished Lukacs Professor, BGSU and University of Kentucky "Wald's SPRT and its properties" Friday, October 22 1:30 LUKACS LECTURE - Room 400 MSC Raju Govindarajulu, Distinguished Lukacs Professor, BGSU and University of Kentucky "Rank order SPRTs" This will be a two-hour talk. No colloquium this week due to the meeting of the Ohio Section of the Mathematics Association of America (MAA) meeting at the College of Wooster. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of October 25 - 29 Tuesday, October 26 2:30 ALGEBRA SEMINAR - Room 447 MSC Steve McCleary, Mathematics and Statistics, BGSU "Lattice-ordered permutation groups, Part VI" This is the sixth in a series of talks. 2:30 SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC Neal Carothers, Mathematics and Statistics, BGSU "Details from Daubechies, Part II" Abstract: This talk will use Fourier transform techniques to outline the proof of the existence of the "mother wavelet" which is orthogonal to the scaling function and whose translates and dilates are mutually orthogonal. Wednesday, October 27 2:30 ANALYSIS SEMINAR - Room 459 MSC Kit Chan, Mathematics and Statistics, BGSU "Semi-Fredholm operators" Thursday, October 28 1:30 LUKACS LECTURE - Room 400 MSC Raju Govindarajulu, Distinguished Lukacs Professor, BGSU and University of Kentucky "Adaptive sequential estimation procedures" Friday, October 29 1:30 LUKACS LECTURE - Room 400 MSC Raju Govindarajulu, Distinguished Lukacs Professor, BGSU and University of Kentucky "Sequential estimation of (i) normal mean and (ii) mean of arbitrary population" This will be a two-hour talk. 3:30 Refreshments 3:45 COLLOQUIUM - Room 459 MSC Wojbor Woyczynski, Case Western Reserve University "Multifractal nonlinear partial differential equations and probabilistic tools to study them" Abstract: Nonlinear partial differential equations involving singular integral operators appear as models of interface growth with anomalous surface diffusion, reflecting hopping and trapping effects. We study the asymptotic behavior of solutions of these nonlocal equations as time tends to infinity. In the critical case when the diffusion and nonlinear terms are balanced, the solutions feature genuinely nonlinear self-similar asymptotics. Probabilistic tools of "propagation of chaos" are used to obtain approximations. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of November 1 - 5 Tuesday, November 2 2:30 ALGEBRA SEMINAR - Room 447 MSC Steve McCleary, Mathematics and Statistics, BGSU "Lattice-ordered permutation groups, Part VII" This is the seventh (and hopefully last) in a series of talks. 2:30 SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC Neal Carothers, Mathematics and Statistics, BGSU "Details from Daubechies, Part III" Abstract: This talk will use Fourier transform techniques to outline the proof of the existence of the "mother wavelet" which is orthogonal to the scaling function and whose translates and dilates are mutually orthogonal. Wednesday, November 3 2:30 ANALYSIS SEMINAR - Room 459 MSC Kit Chan, Mathematics and Statistics, BGSU "Essential spectra" Thursday, November 4 1:30 LUKACS LECTURE - Room 400 MSC Raju Govindarajulu, Distinguished Lukacs Professor, BGSU and University of Kentucky "Bioassay: estimation of LD50 (or ED50)" Friday, November 5 1:30 LUKACS LECTURE - Room 400 MSC Raju Govindarajulu, Distinguished Lukacs Professor, BGSU and University of Kentucky "The secretary problem (optimal stopping problem)" This will be a two-hour talk, and the last in the series of Lukacs Lectures by Professor Govindarajulu. 3:30 Refreshments 3:45 COLLOQUIUM - Room 459 MSC Zhimin Zhang, Wayne State University "Large finite element superconvergence in computational mathematics" Abstract: It was found that the rate of convergence of finite element approximations exceeds the optimal global rate at some exceptional global points. This phenomenon is called "superconvergence" and these special points are called "natural superconvergence points." Most earlier works on superconvergence were concentrated on tensor-product rectangular elements and lower order (linear and quadratic) triangular elements. In this work, a systematic method is introduced, analyzed, and used to find all gradient superconvergent points of arbitrary rectangular finite elements. The results justify some computer findings. The method is then generalized to three dimensional elements to predict gradient superconvergence points which have not been reported in the literature. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of November 8 - 12 Tuesday, November 9 2:30 SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC Daria Filippova, Mathematics and Statistics, BGSU "Calculation of wavelet functions through successive approximation algorithm" Abstract: Using the recursive equation, we are trying to find wavelet functions for the given coefficients h(n). This approach can be used to show the existence and uniqueness of the solution of the recursive equation. Necessary conditions for the coefficient functions are derived. Wednesday, November 10 2:30 ANALYSIS SEMINAR - Room 459 MSC Juan Bes, Mathematics and Statistics, BGSU "Hypercyclic Manifolds, III" Abstract: We describe work of F. Leon and A. Montes on spectral conditions for an operator T acting on an (infinite dimensional) Hilbert space to have a closed, infinite dimensional linear subspace where every non-zero vector is hypercyclic for T. Friday, November 12 3:30 Refreshments 3:45 COLLOQUIUM - Room 459 MSC Berit Stensones, University of Michigan "The Michael conjecture and Fatou-Bieberbach domains" Abstract: We shall look at the connection between the Michael conjecture and the existence of a nested sequence of Fatou-Bieberbach domains with empty intersection. Next we shall study parts of the construction of such a nested sequence. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of November 15 - 19 Monday, November 15 7:30 KME PRESENTATION - Room 459 MSC Have you ever wondered what you can do with your math interest and knowledge outside regular classes at BGSU? There are great opportunities available for undergraduates with math interest! This Monday, November 15, KME will be hosting a presentation on some of these opportunities. We will provide information on summer positions and study abroad opportunities in mathematics. BGSU students who have participated in some of the programs will be there to speak and answer questions. The atmosphere of the presentation will be very relaxed; students will be encouraged to ask questions and get involved in discussion. If you are at all interested in expanding your math horizons, I highly suggest you come! The presentation will be at 7:30PM in room 459 of the Math Science building. We will provide refreshments, and ALL STUDENTS ARE WELCOME TO ATTEND, regardless of their math background. Please join us and learn what the world has to offer! Tuesday, November 16 2:30 ALGEBRA SEMINAR - Room 447 MSC Ramiro Lafuente-Rodriguez, Mathematics and Statistics, BGSU "Groups of divisibility" Abstract: We will look at the connection between abelian l-groups and the theory of integral domains using groups of divisibility. If D is an integral domain with group of units U and field of quotients K, the group of divisibility of D is K*/U. For this purpose we'll study Bezout domains (domains in which every finitely generated ideal is principal). 2:30 SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC Ryan Mears, Department of Psychology, BGSU "Analysis of electrophysiological signals using wavelets and estimating instantaneous spectral information" Wednesday, November 17 2:30 ANALYSIS SEMINAR - Room 459 MSC Juan Bes, Mathematics and Statistics, BGSU "Hypercyclic manifolds, IV" Abstract: We describe work of F. Leon and A. Montes on spectral conditions for an operator T acting on an (infinite dimensional) Hilbert space to have a closed, infinite dimensional linear subspace where every non-zero vector is hypercyclic for T. Friday, November 19 3:30 Refreshments 3:45 COLLOQUIUM - Room 459 MSC David Grabiner, Mathematics and Statistics, BGSU "Brownian motion in a Weyl chamber, non-colliding particles, and random matrices" Abstract: Let n particles move in standard Brownian motion in one dimension, with the process terminating if two particles collide. This is a specific case of Brownian motion constrained to stay inside a Weyl chamber; the Weyl group for this chamber is A_{n-1}, the symmetric group. For any starting positions, we compute a determinant formula for the density function for the particles to be at specified positions at time t without having collided by time t. We show that the probability that there will be no collision up to time t is asymptotic to a constant multiple of t^{-n(n-1)/4} as t goes to infinity, and compute the constant as a polynomial in the starting positions. We have analogous results for the other classical Weyl groups; for example, the hyperoctahedral group B_n gives a model of n independent particles with a wall at x=0. We can define Brownian motion on a Lie algebra, viewing it as a vector space; the eigenvalues of a point in the Lie algebra correspond to a point in the Weyl chamber, giving a Brownian motion conditioned never to exit the chamber. If there are m roots in n dimensions, this shows that the radial part of the conditioned process is the same as the n+2m-dimensional Bessel process, which is the radial part of an n+2m-dimensional Brownian motion. The conditioned process also gives physical models, generalizing Dyson's model for A_{n-1} corresponding to u_n of n particles moving in a diffusion with a repelling force between two particles proportional to the inverse of the distance between them. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of November 22 - 26 No seminars are scheduled for this week. There are no classes on Wednesday, Thursday, or Friday due to Thanksgiving break. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of November 29 - December 3 Tuesday, November 30 2:30 ALGEBRA SEMINAR - Room 447 MSC Ramiro Lafuente-Rodriguez, Mathematics and Statistics, BGSU "Groups of divisibility" 2:30 SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC Tong Sun, Mathematics and Statistics, BGSU "Fractal interpolation functions and multi-resolution analysis" Abstract: We use two fractal interpolation functions and their translates to generate V_0. The dilates of V_0 form a multi-resolution of L^2(R). Wavelet space W_k can be constructed with two functions as the generators. The advantage: small support, orthogonality, AND smoothness. There will be some interesting stuff beside the fractals. For example, you will see a function which is continuous almost everywhere, but it looks discontinuous everywhere. Wednesday, December 1 2:30 ANALYSIS SEMINAR - Room 459 MSC Rebecca Sanders, Mathematics and Statistics, BGSU "A Banach space which admits no chaotic operators" Abstract: We discuss a paper by Bonet, Martinez, and Peris. They show that the dual of a reflexive separable hereditarily indecomposable complex Banach space of Gowers and Maurey admits no chaotic continuous linear operator. Friday, December 3 3:30 Refreshments 3:45 COLLOQUIUM - Room 459 MSC David Meel, Mathematics and Statistics, BGSU "Looking at mathematical understanding: Highlights from different perspectives" Abstract: This talk surveys two particular theoretical frameworks: Pirie and Kieren's model of understanding and Dubinsky's APOS theory. Initially, the historical search for a clear definition of 'understanding' will be discussed focusing on Skemp's identification of instrumental and relational understanding. This talk will then briefly delineate Pirie and Kieren's model of understanding and Dubinsky's APOS theory while explicating the definitions, elements and qualities of the theories. Following this, a discussion of a variety of interconnections between Pirie and Kieren's model of understanding and APOS theory will be discussed focusing on the constructivist origins, organizations, and implications for assessment and pedagogy. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of December 6 - 10 Monday, December 6 7:30 KME MEETING - Room 459 MSC Induction of two new members, then: Stephen McCleary, Mathematics and Statistics, BGSU "Mathematical magic" All students and faculty are invited to attend this event. All KME members are encouraged to attend to show your support for the new inductees. Of course, everyone is welcome (bring a friend)! As part of the induction celebration, we will be having pizza and beverages for all who attend the meeting. Please join us for the fun! Tuesday, December 7 2:30 ALGEBRA SEMINAR - Room 447 MSC Ramiro Lafuente-Rodriguez, Mathematics and Statistics, BGSU "Groups of divisibility, Part III" Abstract: We will look at the connection between abelian l-groups and the theory of integral domains using groups of divisibility. If D is an integral domain with group of units U and field of quotients K, the group of divisibility of D is K*/U. For this purpose we'll study Bezout domains (domains in which every finitely generated ideal is principal). 2:30 SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC Bob Vincent, Geology, BGSU "Wavelet analysis for seismic data" 3:30 FACULTY MEETING - Room 459 MSC Discussion of proposed changes to the graduate exam structure. 7:00 ACTUARIAL SCIENCE SOCIETY PRESENTATION - Room 459 MSC Jim Gabel, Nationwide Insurance of Columbus, Ohio "Nationwide Insurance and actuarial job opportunities" Jim Gabel will be interviewing in Room 400 on Wednesday. Thursday, December 9 2:30 - 5:00 DEPARTMENT OPEN HOUSE - Room 459 MSC All regular and part-time faculty, graduate students, retired faculty, and their guests are welcome. Copious refreshments will be provided! Friday, December 10 There is no colloquium this week. 3:30 PROBABILITY SEMINAR - Room 459 MSC Craig Zirbel, Mathematics and Statistics, BGSU "Current work on the mixing rate of the Lagrangian velocity" Abstract: This talk will discuss work in progress concerning the velocity of a single particle that is moving in a random vector field. Three settings will be discussed. First, discrete space/discrete time, in which exact computations may be done with matrices and some theorems can be proven. Second, continuous space/discrete time, where it may be possible to extend the discrete space results. Third, continuous space/continuous time, which is the real-world setting in which one eventually wants to get results. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Friday, January 7 9:00 AM Ph.D. DEFENSE - Room 459 MSC John Carson, Mathematics and Statistics, BGSU "One-Sided Multivariate Hypothesis Testing Using Extensions of Hotteling's T-Squared" All interested students and faculty are welcome. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. January 10 - 17, 2000 Monday, January 10 Spring Semester 2000 Classes Begin Tuesday, January 11 Wednesday, January 12 Thursday, January 13 Friday, January 14 NO COLLOQUIUM due to the Martin Luther King, Jr. holiday Saturday, January 15 Sunday, January 16 Monday, January 17 Martin Luther King, Jr. Birthday NO CLASSES, OFFICES CLOSED Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. January 18 - 23, 2000 Monday, January 17 Martin Luther King Day NO CLASSES/OFFICES CLOSED Tuesday, January 18 Wednesday, January 19 2:30 PM NO Analysis Seminar this week 3:30 PM Statistics/Probability Seminar 459 MSc Nail BAKIROV, Visiting Professor, Spring 2000 Dr. Bakirov will be introducing the topics for his lecture series. Thursday, January 20 12:30 PM Informal Discussion of Undergraduate Curriculum Coffee Room In particular, the topics under discussion will be Linear Algebra and Discrete Mathematics. 2:30 PM Applied Math Seminar 459 MSc Topics being presented this term: Numerical PDEs related to phase transition, shells and plates, and porous media flow; Applied Differential Geometry Friday, January 21 3:30 PM NO COLLOQUIUM this week due to the Joint AMS/MAA Mathematics Meetings Saturday, January 22 Sunday, January 23 Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. January 24-30, 2000 Wednesday, January 26 12:00 PM Informal Discussion of Undergraduate Curriculum Coffee Room What students write in Calculus I, II, and III and how we would like them to write. Please bring concrete examples. 2:30 PM Analysis Seminar 459 MSc Juan Bes, BGSU "Multi-hypercyclic operators are hypercyclic" Abstract: We present a recent solution by A. Peris to the following conjecture of D. Herrero: "If a bounded operator on a Hilbert space has a dense set consisting of a finite number of orbits, then the operator must have a dense orbit." 3:30 PM Statistics/Probability Seminar 459 MSc Nail BAKIROV, BGSU & Russian Academy of Sciences "Unimodality of the distribution of quadratic forms in centered, independent normal variables" Thursday, January 27 1:30 PM Algebra Seminar 400 MSc Ramiro LAFUENTE-RODRIGUEZ, BGSU "Groups of divisibility: A Review" 2:30 PM Scientific Computation/Applied Math Seminar 459 MSc J. Gordon WADE, BGSU "Numerical Examples of Semilinear and Quasilinear Linear Parabolic PDEs" Friday, January 28 3:30 PM Refreshments Coffee Room 3:45 PM COLLOQUIUM 459 MSc Craig ZIRBEL, BGSU "Statistical mechanics and the nonlinear Schroedinger equation" Abstract: The state of deterministic dynamical systems such as the simple harmonic oscillator and an ideal gas, after running for a long period of time, can be described in a statistical (probabilistic) way. This is the basic idea of statistical mechanics. It is not so important for the first example, but is crucial for the second one. There have been many attempts to extend this idea in order to describe the long-time state of the solutions of partial differential equations, but with limited success. The nonlinear Schroedinger (NLS) equation is a good prototype. It has two conserved quantities, called the energy and the particle number. The goal is to predict the long-time appearance of the solutions of the NLS equation on the basis of these two numbers alone. The basic idea of our approach is to begin with an N-dimensional approximation of the NLS dynamics, write down the appropriate statistical description of its long-time behavior, make an approximation, and take the limit as N goes to infinity. In so doing, we can verify the approximation a posteriori. The eventual statistical description of the solution is degenerate in very interesting ways, and matches well with experimental evidence. This is joint work with Richard Jordan (Worcester Polytechnic Institute) and Bruce Turkington (University of Massachusetts). Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. January 31 - February 6, 2000 Monday, January 31 3:00 PM Personnel Committee 458 MSc Tuesday, February 1 Wednesday, February 2 2:30 PM Analysis Seminar Cancelled 3:30 PM Statistics/Probability Seminar 459 MSc Nail BAKIROV, BGSU & Russian Academy of Sciences "Quadratic Methods for Multivariate Nonparametric Tests" ABSTRACT: The purpose of the lectures is to present a new general method for testing multivariate nonparametric hypotheses. Nonparametric methods are especially important in the multivariate case since there are very few well-known multivariate non-normal distributions with powerful statistical inference procedures. Nonparametric inference is widely used in solving numerous problems of natural, social sciences, and engineering. The hypotheses we plan to consider include homogeneity of two samples, independence of subvectors, symmetry, some linear hypotheses, adequacy of linear regression models, change-point problems, and also hypotheses on random processes (Gaussian vs non-Gaussian, etc.). Based on a sample of size n, our test statistics Q_n have a rather simple structure. Under null hypotheses their limit ditributions are equal (in distribution) to \int |G(t)|^2 dH(t) where G(t) is a complex Gaussian process with 0 expectation and continuous sample paths, and H is some mixing probability measure . All proposed tests are consistent under very weak restrictions on the alternatives. They are also invariant with respect to permutations, shifts, scaling, and orthogonal transformations of the sample. In the multivariate case Pearson's chi-square statistic, the Kolmogorov-Smirnov's statistic, von Mises' w^2, linear rank statistics and many others do not share these and some other good properties of our tests (e.g. sensitivity to alternatives). Our method is based on the following results (i) Typical statistical hypotheses can be expressed in terms of characteristic functions. Tests statistics involving empirical characteristic functions can be reduced to some simple 'quadratic' statistics Q_n with the help of our formula \int_{R^d}\frac{1-\exp\left\{i(t,x)\right\}}{|t|^{d+\gamma}} d\, t=C(d,\gamma)|x|^{\gamma} \ \ where \gamma\in (0,1]. (ii) The limiting distribution of Q_n is the same as the distribution of \linebreak \int |G(t)|^2 dH(t) which in turn is the same as the limit distribution of some quadratic forms in independent standard normal random variables. (iii) If Q is a convex linear combination of squares of independent standard normal random variables, Z is a standard normal random variable then\linebreak P\{ Q\ge x\}\le P\{ Z^2\ge x\},\quad\forall x\ge 1+2^{-1/2}. This new inequality is our main tool. Lower estimators on P\{ Q\ge x\} were known for a long time and most of them are easy to prove, e.g. Okamoto's inequality. In order to prove the inequality in (iii) we needed the following. Quadratic forms in independent standard normal random variables are always unimodal. This property was conjectured by A.N. Kolmogorov and is proved in the lectures. Thursday, February 3 12:30 PM Informal lunch discussion of the undergraduate curriculum - Coffee room If you have taught Discrete Mathematics recently, please come and tell us about what you cover and how you address the issue of students learning how to do proofs. If not, come and listen! 1:30 PM Algebra Seminar 400 MSc Ramiro LAFUENTE-RODRIGUEZ, BGSU "Groups of Divisibility" 2:30 PM Scientific Computation Seminar (Applied Math) 459 MSc S. H. Chou, BGSU "The energy method in nonlinear PDEs" 3:30 PM COLLOQUIUM 459 MSc Analysis Position Candidate Friday, February 4 3:30 PM COLLOQUIUM 459 MSc Statistics Position Candidate Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. February 7-13, 2000 Monday, February 7, 2000 Tuesday, February 8, 2000 10:00 AM Advisory Committee Meeting 458 MSc 11:30 AM Undergraduate Committee Meeting 400 MSc 3:30 PM COLLOQUIUM 459 MSc Candidate for position in statistics Wednesday, February 9, 2000 3:30 PM Statistics/Probability Seminar 459 MSc Nail BAKIROV, Bowling Green State University and Russian Academy of Sciences "Some Inequalities for Quadratic Forms in Gaussian r.v.s" Thursday, February 10, 2000 12:30 PM Analysis Seminar 459 MSc Pete CASAZZA, University of Missouri "Classifying Weyl-Heisenberg Frame Sets is Equivalent to a Classical Problem in Complex Function Theory" ABSTRACT: We show that the problem of classifying elementary Weyl-Heisenberg frame sets is equivalent to classifying the integer sets {n_{1} < n_{2} < ... < n_{k}} so that f(z) = \sum_{j=1}^{k} z^{n_{i}} does not have any zeroes on the unit circle in the plane. 1:30 PM Algebra Seminar 400 MSc Ramiro LAFUENTE-RODRIGUEZ, BGSU "Groups of Divisibility" 2:30 PM Scientific Computation Seminar (Applied Math) 459 MSc So-Hsiang CHOU, Bowling Green State University "Logarithmic convexity and the backward heat equation" 3:30 PM COLLOQUIUM 459 MSc Candidate for position in statistics 7:00 PM KME Presentation 459 MSc Pete CASAZZA, University of Missouri "Mathematical Insanity" ABSTRACT: This is a collection of exciting, surprising, even amazing, consequences in the real world of elementary mathematics. Half the talk can be followed by anyone with a college algebra course, and the second half is for those in Calculus or above. Friday, February 11, 2000 3:30 PM COLLOQUIUM 459 MSc Pete CASAZZA, University of Missouri "An (Historical) Introduction to Weyl-Heisenberg Frames and Signal Processing" ABSTRACT: Weyl-Heisenberg (Gabor) frames are at the center of a myriad of modern day applied problems in signal-image processing, data compression, optics and more. We will look at the development of this important area from a historical perspective. This will allow even non-specialists to appreciate the beauty and power of this subject. Along the way we will see some of the major applications, some of the open problems, and some of the important results in this area. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. February 14 - 20, 2000 Monday, February 14, 2000 3:45 PM COLLOQUIUM 459 MSc Candidate for the position in Analysis Tuesday, February 15, 2000 10:00 AM Advisory Committee Meeting 458 MSc 11:30 AM Undergraduate Committee Meeting 400 MSc Wednesday, February 16, 2000 2:30 PM Analysis Seminar 459 MSc WILL NOT MEET THIS WEEK 3:30 PM Statistics/Probability Seminar 400 MSc (NOTE CHANGE IN ROOM FOR THIS WEEK) Nail BAKIROV, BGSU & Russian Acad. of Sci. "Asymptotic Properties of Empirical Characteristic Functions" 3:45 PM COLLOQUIUM 459 MSc Candidate for the position in Analysis Thursday, February 17, 2000 12:30 PM Information Discussion/Undergraduate Curriculum Coffee Room In the past few weeks we have talked about students doing proofs in linear algebra and discrete mathematics. This week, let's talk about what we expect of our graduates in the way of: * ability to use good form, structure, and style when writing proofs * ability to devise proofs of their own * ability to follow longer proofs and subsequently explain them To be specific, imagine a student who is finishing 403 or 465. It would be helpful if people can bring specific examples, perhaps from those courses. 1:30 PM Algebra Seminar 400 MSc Ramiro LAFUENTE-RODRIGUEZ, BGSU 2:30 PM Scientific Computation Seminar (Applied Math) 459 MSc Tong SUN, BGSU Finite element methods for thin shells Part I: Shell model and numerical locking Friday, February 18, 2000 3:30 PM COLLOQUIUM 459 MSc NO COLLOQUIUM THIS WEEK ON FRIDAY DUE TO CANDIDATE INTERVIEWS Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. February 21 - 27, 2000 Monday, February 21, 2000 President's Day Campus-wide Activities for prospective students 4:00 PM COLLOQUIUM 459 MSc Candidate for the position in Algebra Tuesday, February 22, 2000 10:00 AM Advisory Committee Meeting 458 MSc 11:30 AM Undergraduate Committee Meeting 400 MSc Wednesday, February 23, 2000 2:30 PM Analysis Seminar 459 MSc NO MEETING THIS WEEK DUE TO INTERVIEWS 3:30 PM Statistics/Probability Seminar 459 MSc Nail BAKIROV, BGSU & Russian Acad. of Sci. "Asymptotic Properties of Empirical Characteristic Functions" (continued) Thursday, February 24, 2000 1:30 PM Algebra Seminar 400 MSc Corneliu HOFFMAN, BGSU "On Group Cohomology" 2:30 PM Scientific Computation Seminar (Applied Math) 459 MSc Tong SUN, BGSU Finite element methods for thin shells Part II: Mixed and High-Order Elements 3:30 PM COLLOQUIUM 459 MSc Candidate for the position in Statistics Friday, February 25, 2000 3:30 PM NO COLLOQUIUM due to Interviews/Colloquia earlier in the week Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. February 28 - March 5, 2000 Monday, February 28, 2000 3:30 PM COLLOQUIUM 459 MSc Candidate for the position in Algebra Tuesday, February 29, 2000 10:00 AM Advisory Committee Meeting 458 MSc 4:00 PM COLLOQUIUM 459 MSc Candidate for the position in Algebra Wednesday, March 1, 2000 3:30 PM COLLOQUIUM 459 MSc Candidate for the position in Statistics Thursday, March 2, 2000 1:30 PM Algebra Seminar 400 MSc Corneliu HOFFMAN, BGSU "On Group Cohomology II" 2:30 PM Scientific Computation Seminar (Applied Math) 459 MSc Mireille McNEil, BGSU Friday, March 3, 2000 3:30 PM NO COLLOQUIUM due to Interviews/Colloquia earlier in the week Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. March 13 - 19, 2000 Monday, March 13, 2000 3:30 PM Lukacs Lectures 459 MSc James BERGER, Visiting Lukacs Professor Duke University Professor of Statistics Series Title: Statistical Testing and Model Selection Talk Title: "The Controversy Over P-Values" 5:30PM Wine/Cheese Reception for Visiting Lukacs Professor James BERGER The Gallery, McFall Center 2nd Floor Tuesday, March 14, 2000 10:00 AM Advisory Committee Meeting 458 MSc 11:30 AM Undergraduate Committee Meeting 400 MSc 3:30 PM Lukacs Lecture 459 MSc James BERGER, Visiting Lukacs Professor Duke University "Recent Advances in Objective Bayesian Hypothesis Testing and Model Selection" Wednesday, March 15, 2000 2:30 PM Analysis Seminar 459 MSc Alexander IZZO, BGSU "Lavrentiev's Theorem on Polynomial Approximation" 3:30 PM NO Statistics/Probability Seminar 459 MSc Due to Lukacs Lectures on Monday, Tuesday, Thursday, and the colloquium Friday. Thursday, March 16, 2000 12:30 PM Informal Discussion/Undergraduate Curriculum Coffee Room 1:30 PM Algebra Seminar 400 MSc Ulrich MEIERFRANKENFELD Michigan State University 2:30 PM Scientific Computation Seminar (Applied Math) 459 MSc Kit CHAN, BGSU "Chaotic Unbounded Differentiation Operators" 3:30 PM Lukacs Lecture 459 MSc James BERGER, Visiting Lukacs Professor Duke University "Conditional Frequentist Testing" Friday, March 17, 2000 3:30 PM COLLOQUIUM 459 MSc James BERGER, Visiting Lukacs Professor Duke University "Conditional P-Values" Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. March 20 - 26, 2000 Tuesday, March 21, 2000 10:00 AM Advisory Committee Meeting 458 MSc 11:30 AM Undergraduate Committee Meeting 400 MSc Wednesday, March 22, 2000 2:30 PM Analysis Seminar 459 MSc Ramiro LAFUENTE-RODRIGUEZ, BGSU "Devaney's Definition of Chaos" 3:30 PM Statistics/Probability Seminar 459 MSc Nail BAKIROV, BGSU and Russian Academy of Sciences "Testing for Symmetry" Thursday, March 23, 2000 12:30 PM Information Discussion/Undergraduate Curriculum Coffee Room 1:30 PM Algebra Seminar 400 MSc Curtis BENNETT, BGSU "Free Subgroups of Aut(R,<)" 2:30 PM Scientific Computation Seminar (Applied Math) 459 MSc J. Gordon WADE, BGSU Friday, March 24, 2000 3:30 PM COLLOQUIUM 459 MSc Sergey SHPECTOROV, BGSU "On Phan's Theorem" ABSTRACT: This will be a report on a joint project with Curt Bennett. Reconstructing finite simple groups from a set of its subgroups is an important problem in finite group theory. Recently, new approaches to this problems were found using ideas from diagram geometry. We employ these new techniques to give a complete proof of Phan's theorem. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. March 27 - April 2, 2000 Tuesday, March 28, 2000 10:00 AM Advisory Committee Meeting 458 MSc 11:30 AM Undergraduate Committee Meeting 400 MSc Wednesday, March 29, 2000 2:30 PM Analysis Seminar 459 MSc Rebecca SANDERS, BGSU "Universal Series in L^2[0,1]" 3:30 PM Statistics/Probability Seminar 459 MSc Nail BAKIROV, BGSU & Russian Academy of Science **Thursday, March 30, 2000 12:30 PM Informal Discussion/Undergraduate Curriculum Coffee Room 1:30 PM Algebra Seminar 400 MSc David GRABINER, BGSU "Carom Shots on the Hyperbolic Billiard Table: Cutting Sequences for Geodesics on the Modular Surface and Continued Fractions" (joint work with Jeffrey Lagarias) 2:30 PM Scientific Computation Seminar (Applied Math) 459 MSc Bernie ELEC, BGSU "Considerations of Finite Element Analysis of Shells" **3:30 PM COLLOQUIUM 459 MSc Yanhong WU, University of Toledo "Estimation of Change Point and Change Magnitude After Sequential CUSUM Test" ABSTRACT: The CUSUM procedure is often used for quick detection of abrupt changes in the mean of a stable process. In this talk, the estimation of the change point and change magnitude is considered after a change is detected by the CUSUM procedure. Under both the continuous time model where the drift of a Brownian motion is subject to change, and the discrete time model with independent normal observations, the quasi-stationary biases of the maximum likelihood estimations under a given reference value are obtained. Furthermore, asymptotic local second order expansions for the biases are obtained for numerical evaluation by assuming that both the reference value and the change magnitude approach zero. Detection of global warming is used for illustration. Friday, March 31, 2000 **NO COLLOQUIUM ON FRIDAY, WILL BE HELD ON THURSDAY NOTE: Next week (Fri., 4/7, Sat., 4/8) MAA Ohio Section Meeting Marshall University, Huntington, WV See their website Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. April 3 - 9, 2000 Tuesday, April 4, 2000 10:00 AM Advisory Committee Meeting 458 MSc 11:30 AM Undergraduate Committee Meeting 400 MSc Wednesday, April 5, 2000 2:30 PM Analysis Seminar 459 MSc Samangi MUNASINGHE, BGSU "An Interpolation Theorem" 3:30 PM Statistics/Probability Seminar 459 MSc Nail BAKIROV, BGSU & Russian Acad of Sci "Testing for Normality" Thursday, April 6, 2000 12:30 PM Informal Lunch Discussion/Undergraduate Curriculum Coffee Room 1:30 PM Algebra Seminar 400 MSc TBA 2:30 PM Scientific Computation Seminar (Applied Math) 459 MSc Daria FILIPPOVA, BGSU "Long-Time Behaviour of Solutions of Quasilinear Parabolic Equations" Friday, April 7, 2000 3:30 PM COLLOQUIUM 459 MSc Bernd STELLMACHER "Locally S-Transitive Graphs" ABSTRACT: Let Gamma be a graph and G <= Aut(Gamma). Then Gamma is said to be locally s-transitive (with respect to G), if for every vertex w of Gamma and every r <= s the stabilizer G(w) of Gamma in G is transitive on the paths of length r with initial vertex w. Under the additional assumption that the vertex stabilizers in G are finite and the valency of every vertex is at least 3 it can be shown that s <= 9. MAA Ohio Section Meeting Marshall University, Huntington, WV See their website Saturday, April 8, 2000 MAA Ohio Section Meeting Marshall University, Huntington, WV See their website Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. April 10 - 16, 2000 Tuesday, April 11, 2000 10:00 AM Advisory Committee Meeting 458 MSc 11:30 AM Undergraduate Committee Meeting 400 MSc 3:30 PM **Tenure/Tenure-Track** Department Meeting 459 MSc Wednesday, April 12, 2000 2:30 PM Analysis Seminar 459 MSc William ROLLI, BGSU "Orthogonal Projections of Frames" 3:30 PM Statistics/Probability Seminar 459 MSc Nail BAKIROV, BGSU & Russian Acad of Sci "Tests for Change-Points" Thursday, April 13, 2000 10:00 AM Annual Health Fair 10:00 AM - 4:00 PM Anderson Arena 12:30 PM Informal Discussion/Undergraduate Curriculum Coffee Room 1:30 PM Algebra Seminar 400 MSc TBA 2:30 PM Scientific Computation Seminar (Applied Math) 459 MSc Tong SUN, BGSU "Least Squares Finite Element Methods With H^{-1} Norm" 3:30 PM **COLLOQUIUM** 459 MSc Phil HANLON, University of Michigan "The Laplacian Method" Friday, April 14, 2000 3:30 PM **COLLOQUIUM** 459 MSc Andrew BENNETT, Kansas State University "On-Line Homework and Student Learning" Saturday, April 15, 2000 4:30 PM Kappa Mu Epsilon/Department Honors Banquet Towers Restaurant Andrew BENNETT, Kansas State University "Why There Are Black Keys On A Piano" Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. April 15 - 23, 2000 Saturday, April 15, 2000 4:30 PM Kappa Mu Epsilon/Department Honors Banquet Towers Restaurant Andrew BENNETT, Kansas State University "Why There Are Black Keys On A Piano" Tuesday, April 18, 2000 10:00 AM Advisory Committee Meeting 458 MSc 11:30 AM Undergraduate Committee Meeting 400 MSc **3:30 PM COLLOQUIUM 459 MSc** Steve McCLEARY, BGSU "Reconstruction of a Permutation Group From the Group Alone" ABSTRACT: Question: How do you recover a permutation group from knowledge just of the group? Answer: You don't--not without fairly strong hypotheses on the permutation group. The permutation groups here will act on chains (for example the real line or the rational line), or sometimes on circles. The groups themselves will NOT be ordered--this is not a talk on ordered groups. There has been a progression of reconstruction results involving ever weaker hypotheses. I'll recapitulate this history, and look at the latest results (which are joint work with Mati Rubin). Wednesday, April 19, 2000 2:30 PM Analysis Seminar 459 MSc Ron TAYLOR, BGSU "Hypercyclic Subspaces of a Banach Space" 3:30 PM Statistics/Probability Seminar 459 MSc Nail BAKIROV, BGSU and Russian Acad of Sci "Adequacy of Linear Models" Thursday, April 20, 2000 12:30 PM Information Discussion/Undergraduate Curriculum Coffee Room 1:30 PM Algebra Seminar 400 MSc TBA 2:30 PM Scientific Computation Seminar (Applied Math) 459 MSc Tong SUN, BGSU "General Mixed Finite Element Programming" Friday, April 21, 2000 3:30 PM COLLOQUIUM 459 MSc Tonu KOLLO, University of Tartu, Estonia "Multivariate Density Approximation" ABSTRACT: We are interested in approximation of a complicated multivariate density function though a known possibly higher dimensional density. A general relation between the two densities has been obtained and applied for approximating of some statistics through the multivariate normal Wishart distribution. ***UPCOMING COLLOQUIA*** Tuesday, April 25, 2000 Chris LENNARD University of Pittsburgh and Miami University "Characterization of L^p (R^n) Using the Gabor Frame" Friday, April 28, 2000 Colin GOODALL AT&T Laboratories Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. April 24 - 30, 2000 Monday, April 24, 2000 1:00 PM - 2:30 PM Math/Stat Department Office will be CLOSED so office staff may attend the Annual Classified Staff Awards Ceremony Tuesday, April 25, 2000 10:00 AM Advisory Committee Meeting 458 MSc 11:30 AM Undergraduate Committee Meeting 400 MSc 3:30 PM COLLOQUIUM 459 MSc Chris LENNARD, University of Pittsburgh "Characterization of L^p (R^n) Using the Gabor Frame" ABSTRACT: This talk will discuss recent joint work with Loukas Grafakos. We characterize the L^p norm of a Schwartz function on R^n for 1 <= p <= infinity in terms of its Gabor coefficients with respect to a fixed bump. Moreover, we use the Carleston-Hunt theorem to show that the Gabor expansions of L^p functions converge back to the functions almost everywhere and in L^p for 1 < p < infinity. In L^1 we prove an anlogous rsult: the Gabor expansions converge back to the functions almost everywhere and in L^1 in a certain Ces\aro sense. Consequently, we are able to establish that a large clas of Gabor families generate Banach frames for L^p (R^n) when 1 <= p <= infinity. Wednesday, April 26, 2000 2:30 PM Analysis Seminar 459 MSc TBA 3:30 PM Statistics/Probability Seminar 459 MSc Nail BAKIROV, BGSU & Russian Acad of Sci "Testing Stochastic Processes" Thursday, April 27, 2000 1:30 PM Algebra Seminar 400 MSc TBA 2:30 PM Scientific Computation Seminar (Applied Math) 459 MSc Vena Pearl BONGOLAN-WALSH, BGSU "Universal Numbers and Scaling" Friday, April 28, 2000 3:30 PM COLLOQUIUM 459 MSc ******* CANCELLED ******* Co-sponsored by the Department of Applied Statistics and Operations Research and the Department of Mathematics and Statistics Colin GOODALL, AT&T Labs "Consensus Estimates" ABSTRACT: Consider two mutually-obverse situations of n vector-valued observations with unknown mean. In the first situation, each observation is the perturbation of an arbitrary (linear) transformation of a common mean. In the second situation, each observation is an arbitrary (linear) transformation of a perturbed common mean. (With sufficiently general error models, the two situations coincide.) As leading examples I take classical factor analysis, and generalized Procrustes analysis for computation of a mean configuration or shape. A "linear-spectral theorem" is outlined for the shape, and other, settings. Connections to the analysis of dose-response data, to random graphs, and to functional analysis are noted. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. May 8 - 12, 2000 Thursday, May 11 2:00 ALGEBRA SEMINAR - Room 459 MSC Peter Abramenko, speaking on the opposite complex in a building and its properties. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. August 7 - 11, 2000 Monday, August 7 10:00 DISSERTATION DEFENSE - Room 459 MSC Grazyna Kamburowska, Mathematics and Statistics, BGSU "Fitting engineering data with non-regular transformed models" Thursday, August 10 1:00 DISSERTATION DEFENSE - Room 459 MSC Ron Taylor, Mathematics and Statistics, BGSU "Cyclicity of the operator algebra in a Banach space" Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. August 14 - 18, 2000 Tuesday, August 15 3:00 DISSERTATION DEFENSE - Room 459 MSC Atchutalakshmi Evani, Mathematics and Statistics, BGSU "Results on the Universal K-Bruhat Order" Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Tuesday, August 15 3:00 DISSERTATION DEFENSE - Room 459 MSC Atchutalakshmi Evani, Mathematics and Statistics, BGSU "Results on the Universal K-Bruhat Order" Monday, August 21 12:00 LUNCH - Room 459 MSC Please join us for pizza and soda while welcoming our new graduate students. Friday, August 25, 2000 9:30 Coffee - 101 Olscamp 10:00 President's address 11:00 A&S faculty meeting 12:00 Reception (first floor lounge, Olscamp) 1:00 A&S advisors meeting - 121 West Hall 2:30-4:00 Graduate College address - 115 Olscamp 4:00 Department meeting - Room 459 MSC Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Week of August 28 - September 1 Thursday, August 31 3:30 "COLLOQUIUM" - Country Side dining hall, West side of MacDonald Quad Please be sure to attend as we will be announcing our Outstanding Graduate Teaching Assistant award winners as well as a few other surprises. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. September 4-10, 2000 Monday, September 4, 2000 NO CLASSES - LABOR DAY Tuesday, September 5, 2000 Wednesday, September 6, 2000 Thursday, September 7, 2000 4:00 PM Probability/Statistics Seminar 459 MSc Gabor SZEKELY, BGSU "Independence" 4:30 PM Analysis Seminar room TBA NO MEETING THIS WEEK, will begin 9/14 Friday, September 8, 2000 11:30 AM - 1:00 PM All-Campus Picnic University Hall Lawn (free and open to all) 3:30 PM COLLOQUIUM 459 MSc Akihiro MUNEMASA Kyushu University & University of Waterloo "Distance-regular Graphs Related to the Binary Golay Code and Their Spherical Representation" ABSTRACT: Distance-regular graphs are combinatorial abstraction of highly symmetric graphs. We first review spherical representation of distance-regular graphs. Then we focus on two graphs, Soicher's graph$\Gamma$on 672 vertices and Meixner's graph$\tilde{\Gamma}$on 1344 vertices. The graph$\Gamma$is defined using the binary Golay code. Although it is not obvious from the way Soicher defined the graph$\Gamma$, it turns out that$\Gamma$is an induced subgraph of$\tilde{\Gamma}$. This can be seen easily if one uses a spherical representation of$\tilde{\Gamma}$in the unit sphere of a 56-dimensional Euclidean space. In fact,$\tilde{\Gamma}$decomposes into two copies of$\Gamma$, each lying on a hyperplane. This leads to a purely combinatorial construction of$\tilde{\Gamma}$from$\Gamma$. We determine parameter sets of pairs of distance-regular graphs which generalize the two graphs$\Gamma$and$\tilde{\Gamma}$. This work is partially based on joint work with William Martin. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. September 11-17, 2000 Monday, September 11, 2000 Tuesday, September 12, 2000 2:30 PM Algebra Seminar 459 MSc Sergey SHPECTOROV, BGSU Wednesday, September 13, 2000 Thursday, September 14, 2000 2:30 PM Applied Math Seminar 459 MSc 4:00 PM Probability/Statistics Seminar 459 MSc Keshav JAGANNATHAN, BGSU "Surprise Maximization" 4:30 PM Analysis Seminar 340 MSc Kit CHAN, BGSU "Universal Meromorphic Functions" Friday, September 15, 2000 3:30 PM COLLOQUIUM 459 MSc Waldemar WEBER, BGSU "Teaching Tomorrow's Calculus with Technology" ABSTRACT: Johann Gensfleisch zur Laden zum Gutenberg invented the printing press and introduced moveable type in 1455. No one was able to improve his process, which made printing practical, until the twentieth century. And now, the personal computers that enable all of us to become printers also offer many additional resources to help us improve in many ways. We are in a technological revolution that is as important for teaching and research today as the one that occurred over five hundred years ago. In this colloquium, we will meet some of the people, who are leading thisrevolution at Bowling Green State University, and consider some of the resources that are becoming available for calculus classes to meet future challenges. Saturday, September 16, 2000 1:00 PM KAPPA MU EPSILON PICNIC Offenhauer volleyball courts There will be food, games, and time to socialize. It will be great fun and a good time. Feel free to stop on by! Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. Saturday, September 16, 2000 1:00 PM KAPPA MU EPSILON PICNIC Offenhauer volleyball courts There will be food, games, and time to socialize. It will be great fun and a good time. Feel free to stop on by! September 18-24, 2000 Monday, September 18, 2000 Tuesday, September 19, 2000 9:00 AM - 1:00 PM PhD Prelims 400 MSc 9:30 - 11:00 AM Sexual Harassment Training Seminar Jerome Library Conference Room (training seminar is required of ALL university faculty/staff; this was established 3 years ago...if you have not attended a sexual harassment training seminar, you need to do so... they will have an attendance sheet which you need to sign at the training seminar) 2:30 PM Algebra Seminar 459 MSc Sergey SHPECTOROV, BGSU "Distance-Transitive Graphs" Wednesday, September 20, 2000 Thursday, September 21, 2000 9:00 AM - 1:00 PM PhD Prelims 400 MSc 2:30 PM Applied Math Seminar 459 MSc Haowen XI, Dept. of Astronomy & Physics, BGSU "Introduction to Genetic Programming" 4:00 PM Probability/Statistics Seminar 459 MSc James ALBERT, BGSU "The 2 x 2 Table" 4:30 PM Analysis Seminar 340 MSc Kit CHAN, BGSU "Universal Meromorphic Functions II" Friday, September 22, 2000 3:30 PM COLLOQUIUM 459 MSc John Tuhao CHEN, BGSU "Statistical Inference for Population Attributable Risk" ABSTRACT: In biostatistics, population attributable risk (PAR) is a measure of the potential impact that reduction in exposure to a risk factor will have on the incidence of a given disease. When multiple risk factors are involved, existing methods of adjustment can not satisfy the distributive property of adjusted PAR. This prevents the application of PAR in some applied fields, such as epidemiology. In this talk, we will discuss methods of simultaneous adjustment using component stratification and logistic regression models. The new methods guarantee the distributive property. Data sets in heart disease study and lung cancer study will be included as examples to illustrate the methods. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. September 25 - October 1, 2000 Monday, September 25, 2000 3:30 PM Advisory Committee 458 MSc Tuesday, September 269, 2000 2:30 PM Algebra Seminar 459 MSc W. Charles HOLLAND, BGSU "Almost Intransitive Graphs and Other Structures" Wednesday, September 27, 2000 Thursday, September 28, 2000 2:30 PM Applied Math Seminar 459 MSc Tong SUN, BGSU "A New Error Estimation Approach for Parabolic PDE" 4:00 PM Probability/Statistics Seminar 459 MSc James H. ALBERT, BGSU "The 2 x 2 Table, Part 2" 4:30 PM Analysis Seminar 340 MSc Kit CHAN, BGSU "Universal Meromorphic Functions III" Friday, September 29, 2000 3:30 PM COLLOQUIUM 459 MSc Professor C. Troskie Department of Statistics University of Cape Town, South Africa "Adaptive Robust Estimation in Multivariate Regression: Applications to Stock Price Data" ABSTRACT: In the general linear model Y=Xb+e it is assumed that e is distributed according to a distribution F (symmetric) with possibly long tails (large kurtosis). L and M estimators are robust procedures used for estimating b in the above case. In this paper we focus on the Weighted Least Squares (WLS) estimator developed by Sposito, Kennedy and Gentle (1977) for the case q=2 and extended by Barr (1981) for the general case and compare the WLS estimator with several other estimators including robust, least squares and Bayes estimators. A simulation study was conducted including outliers and influential points. Spurious observations in both dependent varible space Y, and independent variable space X, are bounded giving rise also to bounded influential regression estimates. It is shown that the adaptive WLS estimator is a serious contender for a variety distributions of F where spurious observations can be accomodated by proper (bounded) weighting. For Stock price data it is assumed that Rj the rate of return of a risky asset j, and a suitable chosen proxy M fot the market portfolio has the linear relationship Rj=a+bM+e. It is well known that for the above model the error distributions have large kurtosis. For the data on the Johannesburg Stock Exchange (JSE) the WLS and Bounded WLS estimators seem to perform well. In modern portfolio theory new innovations are introduced in the Sharpe Single and Multiple Index models. The results of the new innovations and the robust estimators are compared with that of the Matkowitz Model by computing the Efficient Frontiers. The results are very interesting and illuminating. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. October 2 - 8, 2000 Monday, October 2, 2000 3:30 PM Advisory Committee 458 MSc Tuesday, October 3, 2000 2:30 PM Algebra Seminar 459 MSc Charles HOLLAND, BGSU "Almost Intransitive Structures (II)" Wednesday, October 4, 2000 Thursday, October 5, 2000 11:00 AM - 3:00PM Ice Cream Social Sponsored by Fac Sen/ASC/CSC/GSS/USG Steps of the Education Building Free Ice Cream Sundaes to celebrate Homecoming Week 2:30 PM Applied Math Seminar 459 MSc So-Hsiang CHOU, BGSU "An Introduction to Priori and a Posteriori Error Analysis" 4:00 PM Probability/Statistics Seminar 459 MSc Arjun GUPTA, BGSU "Modeling Skewness" NO Analysis Seminar this week Friday, October 6, 2000 3:30 PM COLLOQUIUM 459 MSc Kit CHAN, BGSU "The Density of Hypercyclic Operators on a Hilbert Space" ABSTRACT: A bounded linear operator T on an infinite dimensional separable Hilbert space H is said to be hypercyclic, if there is a vector f in H so that its orbit {f, Tf, T^2f, T^3f,....} is dense in H. There are many examples of hypercyclic operators in the literature, and so it is interesting to investigate their density in the operator algebra B(H) of all bounded linear operators on H. Naturally B(H) carries many topologies, among which the strongest one is the operator norm topology and the next strongest one is the strong operator topology. In the colloquium, we show that the hypercyclic operators form a dense subset of B(H) in the strong operator topology, and that their linear span form a dense subspace in the operator norm topology. Saturday, October 7, 2000 HOMECOMING ACTIVITIES Open House at the Mileti Alumni Center - 9:00AM - 5:00PM Parade - 10AM Tent City (adjacent to Doyt Perry Stadium) - 11AM - 1:30PM Football Game - 1:30 PM Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. October 9 - 15, 2000 Monday, October 9, 2000 3:30 PM Advisory Committee 458 MSc Tuesday, October 10, 2000 12:30 PM - 2:00 PM Graduate Committee Meeting 400 MSC 2:30 PM Algebra Seminar 459 MSc Warren W. McGOVERN, BGSU "Archimedean Lattice-Ordered Groups with Weak-Order Unit" 3:30 PM TENURED FACULTY Department Meeting 459 MSc Wednesday, October 11, 2000 Thursday, October 12, 2000 2:30 PM Applied Math Seminar 459 MSc Tong SUN, BGSU "A New Error Estimation Approach for Parabolic PDE, Part II" 4:00 PM Probability/Statistics Seminar 459 MSc Truc T. NGUYEN, BGSU "The chi-square distribution of the sample variance and normal distribution" 4:30 PM Analysis Seminar 340 MSc Rebecca SANDERS, BGSU "Chaotic Differentiation Operators on Simply Connected Regions" Friday, October 13, 2000 3:30 PM NO COLLOQUIUM - FALL BREAK Begins at 5PM Saturday, October 14, 2000 FALL BREAK Sunday, October 15, 2000 FALL BREAK (Continues through Tuesday, October 17) Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. October 16 - 22, 2000 Monday, October 16, 2000 FALL BREAK - No Classes Tuesday, October 17, 2000 FALL BREAK - No Classes Wednesday, October 18, 2000 Thursday, October 19, 2000 OCTM Meeting - Toledo, OH 4:30 PM Analysis Seminar 340 MSc Neal CAROTHERS, BGSU "Weak Compactness in L_1" Friday, October 20, 2000 NO COLLOQUIUM OCTM Meeting Saturday, October 21, 2000 BGSU PREVIEW DAY OCTM Meeting Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. October 23 - 29, 2000 Monday, October 23, 2000 3:30 PM Advisory Committee 458 MSc Tuesday, October 24, 2000 2:30 PM Algebra Seminar 459 MSc Warren McGOVERN, BGSU "Archimedean Lattice-Ordered Groups with Weak-Order Unit, Part II" 4:00 PM Lukacs Lecture 459 MSc Nozer SINGPURWALLA, George Washington University "Warranty Contracts and Equilibrium Probabilities" 7:00 PM KME Presentation 459 MSc Waldemar WEBER, BGSU On Tuesday, October 24th, the BGSU math club (otherwise known as the Ohio Alpha chapter of KME) will be hosting a presentation by our own Dr. Waldemar Weber. Dr. Weber, who has been a dedicated supporter of KME over the years, is retiring after this semester. Please join us for Dr. Weber's "Last Hurrah" and help us say farewell to a wonderful professor. Dr. Weber will talk about using the golden ratio to approximate the value of pi and how this estimate was used by ancient Egyptians of the Old and New Kingdoms. The talk will be primarily about math history and promises to be very fascinating! The presentation is set to start at 7:00 in room 459 of the Mathematical Sciences Building. As usual, KME will be providing free snacks and beverages. All BGSU students and faculty are invited, so please join us this Tuesday! Wednesday, October 25, 2000 3:30 PM Lukacs Lecture 220 MSc Nozer SINGPURWALLA, George Washington University "Probability Measures of Fuzzy Sets" Thursday, October 26, 2000 2:30 PM Applied Math Seminar 459 MSc Bernarda ELEC, BGSU "Locking and Mixed Formulations for Thin Shells" 4:00 PM Probability/Statistics Seminar 459 MSc 4:30 PM Analysis Seminar 340 MSc Friday, October 27, 2000 3:30 PM COLLOQUIUM 459 MSc Tze-San LEE, Western Illinois University "Change-Point Analysis of Equally/Unequally Spaced Time Series" ABSTRACT: Two change-point models, mean-change and variance-change models, are considered for detecting change in the mean or variance of equally/unequally spaced time series. For equally spaced time series, an autoregressive process of order one is used to model unobservable errors in the data, while a continuous time Ornstein-Uhlenbeck process is employed to model unobservable errors in the unequally spaced time series data. Based on the principle of the likelihood ratio test, statistical methods are proposed to detect the change-point in either the mean-change or variance-change models. Two real world data sets, the U.S. graduate enrollment data and the annual discharge volumes of Egyptian Nile's river are used to illustrate the mean-change model for equally spaced time series. The asbestos exposure data collected at Lackland Air Force Base are used to illustrate both change-point models for unequally spaced time series. OHIO SECTION OF THE MATHEMATICAL ASSOCIATION OF AMERICA Wittenburg University (www.maa.org/Ohio) Saturday, October 28, 2000 OHIO SECTION OF THE MATHEMATICAL ASSOCIATION OF AMERICA Wittenburg University (www.maa.org/Ohio) Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. October 30 - November 5, 2000 Monday, October 30, 2000 3:30 PM Advisory Committee 458 MSc Tuesday, October 31, 2000 2:30 PM Algebra Seminar 459 MSc Warren McGOVERN, BGSU "A-Extensions of Archimedean l-groups with Weak Order Units" Wednesday, November 1, 2000 Thursday, November 2, 2000 2:30 - 4:30 PM RETIREMENT RECEPTION in honor of Waldemar WEBER 459 MSc Friday, November 3, 2000 3:30 PM COLLOQUIUM 459 MSc Jorge MARTINEZ, University of Florida "Summand Inducing Hulls" ABSTRACT: There are many constructions of hulls or completions in algebra which are based on the notion of turning a selected set of subobjects into summands or factors. The talk will outline a fairly general process, which is motivated by the theory of archimedean lattice-ordered groups, but can be made to suit, say, semiprime commutative rings without any ordering. In the context of archimedean lattice-ordered groups with unit, this invariably leads to the dual conversation about compact spaces and their covers. Time permitting, it will be shown how to extend the "machine" to recover all the principal minimum covers of compact spaces which occur in the literature. Saturday, November 4, 2000 10:00 AM Family Weekend Open House w/Physics 104 Overman Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. November 6 - 12, 2000 Monday, November 6, 2000 1:00 PM Master's thesis defense 400 MSc Larisa RUSSELL, BGSU "A Comparison between Mathematics Testbook content and a Statewide Mathematics High School Graduation Qualifying Examination" Tuesday, November 7, 2000 2:30 PM Algebra Seminar 459 MSc Jon DUNLAP, BGSU "An Introduction to the GAP Programming Environment" (Part 1 of 2) ABSTRACT: GAP (Groups, Algorithms, and Programming) is a free, open, and extensible software package for computation in discrete abstract algebra." It has roots in Germany, beginning in 1985, and its most recent version, GAP 4.1, was developed in Germany and the United Kingdom and was unconditionally released within the past two years. In this talk, we will provide an overview of the installation, syntax, capabilities, and features of GAP, as well as motivate its use with some concrete examples from elementary group theory. No previous GAP experience and very little programming experience will be assumed. Wednesday, November 8, 2000 Thursday, November 9, 2000 2:30 PM Applied Math Seminar 459 MSc 4:00 PM Probability/Statistics Seminar 459 MSc 4:30 PM NO Analysis Seminar this week Friday, November 10, 2000 Observance of Veterans' Day; no classes, offices closed. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. November 13 - 19, 2000 Monday, November 13, 2000 3:30 PM Advisory Committee 458 MSc 3:30 PM Lukacs Lecture 459 MSc Nozer SINGPURWALLA, George Washington University "The Hazard Potential of Items and Individuals" ABSTRACT: We introduce here a notion that is relevant to reliability and survival analysis. It pertains to a random resource that items and individuals possess; an item fails when this resource gets exhausted. The cumulative failure rate describes the rate at which the resource gets consumed. The notion given above enables us to characterize all survival distributions in terms of the exponential. Furthermore, we are able to show that a collection of dependent life times can be represented as a collection of independent exponential distributions, each indexed on a different time scale. Tuesday, November 14, 2000 2:30 PM Algebra Seminar 459 MSc 4:00 PM Lukacs Lecture 459 MSc Nozer SINGPURWALLA, George Washington University "Optimum Reliability Allocation" ABSTRACT: We discuss how to allocate reliability to the components of a system or a network so as to optimize an overall utility function. The work described here shows an interesting interplay between optimization theory and the behaviour of survival functions with a monotone failure rate. 7:00 PM KME Open Forum 459 MSc Wednesday, November 15, 2000 Thursday, November 16, 2000 2:30 PM Scientific Computation Seminar 459 MSc Daria FILIPPOVA, BGSU "Estimation of the Error in the Parabolic Equations and Generalized Gronwall's Inequality" 4:00 PM COLLOQUIUM - Joint with ASOR 459 MSc M. C. AGRAWAL, Akron University "Some Salient and Sensible Aspects (with Special Reference to Predictive Estimation) of Finite Population Sampling" ABSTRACT: Certain typical results that characterize survey sampling will be highlighted. In particular, some interesting aspects relating to "predictive estimation" under fixed-population and superpopulation approaches will be presented. 4:30 PM Analysis Seminar 340 MSc ***** Canceled ***** Neal L. CAROTHERS, BGSU "The Dunford-Pettis Property" Friday, November 17, 2000 3:30 PM COLLOQUIUM 459 MSc Corneliu HOFFMAN, BGSU "Children Drawings, Number Theory and, Of Course, Group Theory" ABSTRACT: I will survey a few applications of group theory in various areas of number theory. The main topic will involve Grothendieck famed dessins d'enfants (children drawings), a combinatorial machinery used to study strange beings such as the absolute Galois group of the rational numbers. To cite Grothendieck "... here I was brought back, via objects so simple that a child learns them while playing, to the beginnings and origins of algebraic geometry, familiar to Riemann and his followers." Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. November 13 - 19, 2000 Monday, November 13, 2000 3:30 PM Advisory Committee 458 MSc 3:30 PM Lukacs Lecture 459 MSc Nozer SINGPURWALLA, George Washington University "The Hazard Potential of Items and Individuals" ABSTRACT: We introduce here a notion that is relevant to reliability and survival analysis. It pertains to a random resource that items and individuals possess; an item fails when this resource gets exhausted. The cumulative failure rate describes the rate at which the resource gets consumed. The notion given above enables us to characterize all survival distributions in terms of the exponential. Furthermore, we are able to show that a collection of dependent life times can be represented as a collection of independent exponential distributions, each indexed on a different time scale. Tuesday, November 14, 2000 2:30 PM Algebra Seminar 459 MSc 4:00 PM Lukacs Lecture 459 MSc Nozer SINGPURWALLA, George Washington University "Optimum Reliability Allocation" ABSTRACT: We discuss how to allocate reliability to the components of a system or a network so as to optimize an overall utility function. The work described here shows an interesting interplay between optimization theory and the behaviour of survival functions with a monotone failure rate. 7:00 PM KME Open Forum 459 MSc Wednesday, November 15, 2000 Thursday, November 16, 2000 2:30 PM Scientific Computation Seminar 459 MSc Daria FILIPPOVA, BGSU "Estimation of the Error in the Parabolic Equations and Generalized Gronwall's Inequality" 4:00 PM COLLOQUIUM - Joint with ASOR 459 MSc M. C. AGRAWAL, Akron University "Some Salient and Sensible Aspects (with Special Reference to Predictive Estimation) of Finite Population Sampling" ABSTRACT: Certain typical results that characterize survey sampling will be highlighted. In particular, some interesting aspects relating to "predictive estimation" under fixed-population and superpopulation approaches will be presented. 4:30 PM Analysis Seminar 340 MSc Neal L. CAROTHERS, BGSU "The Dunford-Pettis Property" Friday, November 17, 2000 3:30 PM COLLOQUIUM 459 MSc Corneliu HOFFMAN, BGSU "Children Drawings, Number Theory and, Of Course, Group Theory" ABSTRACT: I will survey a few applications of group theory in various areas of number theory. The main topic will involve Grothendieck famed dessins d'enfants (children drawings), a combinatorial machinery used to study strange beings such as the absolute Galois group of the rational numbers. To cite Grothendieck "... here I was brought back, via objects so simple that a child learns them while playing, to the beginnings and origins of algebraic geometry, familiar to Riemann and his followers." Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. November 20 - 26, 2000 Monday, November 20, 2000 3:30 PM Advisory Committee 458 MSc 3:45 PM Special Talk 459 MSc Bruce SUTER, Director, US Air Force Research Lab Information Directorate, Rome, New York ABSTRACT: The talk will briefly discuss the newly created center and its research. Three topics of special interest to students will be opportunities for (1) doctoral fellowships (2) summer student research positions, and (3) post-doctoral research positions. Dr. Suter will be accompanied by Drs. Mark Oxley and Tom Reid of the Air Force Institute of Technology, Wright Patterson Air Force Base, Dayton. Tuesday, November 21, 2000 Wednesday, November 22, 2000 THANKSGIVING BREAK Thursday, November 23, 2000 THANKSGIVING BREAK Friday,November 24, 2000 THANKSGIVING BREAK Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. November 27 - December 3, 2000 Monday, November 27, 2000 Tuesday, November 28, 2000 2:30 PM Algebra Seminar 459 MSc Corneliu HOFFMAN, BGSU "Probabilistic Group Theory" Wednesday, November 29, 2000 Thursday, November 30, 2000 2:30 PM Applied Math Seminar 459 MSc Tong SUN, BGSU "Dual Mixed Methods and Inf-Sup Condition" 3:30 PM DEPARTMENT MEETING 459 MSc (Don Nieman, Dean, Arts & Sciences and Marshall Rose, Director, Affirmative Action will be attending this meeting) 4:00 PM Probability/Statistics Seminar 459 MSc CANCELLED THIS WEEK DUE TO DEPARTMENT MEETING 4:30 PM Analysis Seminar 340 MSc CANCELLED THIS WEEK DUE TO DEPARTMENT MEETING Friday, December 1, 2000 3:30 PM COLLOQUIUM 459 MSc Michael McCONNEL, Clarion University "A Permutations Approach to Group Theory" ABSTRACT: Historically, Modern Algebra courses have been geared towards preparing students for graduate work. However, at Clarion University, as well as many other schools, the majority of students in the course are Secondary Education Majors. These students often have a different perception of Abstract Algebra and how it fits into their planned career. Dr. McConnell will discuss some changes he has made in the presentation of the course, especially the use permutations and permutation groups as a bridge into the axiomatic definition of groups. He will present Maple assignments that he uses to motivate student conjectures. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. December 4 - 10, 2000 Monday, December 4, 2000 3:30 PM Advisory Committee 458 MSc Tuesday, December 5, 2000 2:30 PM Algebra Seminar 459 MSc Corneliu HOFFMAN, BGSU "Probabilistic Group Theory II" 4:00 PM Probability/Statistics Seminar 459 MSc Hope BARBERA, BGSU "The Central Limit Theorem for Additive Functionals of Markov Chains" Wednesday, December 6, 2000 Thursday, December 7, 2000 2:30 PM Applied Math Seminar 459 MSc Tong SUN, BGSU "Dual Mixed Methods and Inf-Sup Condition" Part II 4:00 PM Probability/Statistics Seminar 459 MSc Joel SANQUI, BGSU "Measures of Skewness" 4:30 PM Analysis Seminar 340 MSc Bill ROLLI, BGSU "a-Pointwise Inner Products for Functions in L_2(R)" Friday, December 8, 2000 3:30 PM COLLOQUIUM 459 MSc Wen ZHANG, Oakland University "Mathematics and Simulation of Micro-Scaled Diffusion Process in Material" ABSTRACT: Diffusion in material plays an important role in manufacture processes of powders and thin films. There are various diffusion processes depending on the scale and property of material. On Micro-scale one dominating diffusion process is surface diffusion. The mathematical model for surface diffusion involves nonlinear high-order time-dependent PDEs and surface evolution. We will discuss the mathematical challenges, treatments and present the numerical simulation results. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. December 11 - 17, 2000 Monday, December 11, 2000 Tuesday, December 12, 2000 2:30 PM Algebra Seminar 459 MSc Pamela RICHARDSON, BGSU "Introduction to Cwatsets" ABSTRACT: A cwatset is a subset of binary n-space that is closed (c) with (w) a (a) twist (t). For example, C = {000,110,101} is a cwatset because; C + 000 = C, C + 110 = {110,000,011} is just C with the first two components of each element transposed, C + 101 = {101,011,000} is just C with the first and last components of each element transposed. That is, for each element c of C there exists a permutation, pi, of three symbols such that the coset c + C is just C with pi applied to the components of each element of C. The theory of cwatsets, which was initiated at Rose-Hulman Institute of Technology in 1986, has roots in statistics (a cwatset determines a confidence interval for the mean or median of a symmetric random variable) and blossoms in graph theory (each isomorphism class of simple graphs has a unique cwatset associated with it) and algebra. In this talk, we will concentrate on the algebraic properties of cwatsets. In particular, we will discuss the group-like properties of cwatsets that have been discovered so far as well as the many questions that have not been answered. 4:00 PM - 6:00 PM President Ribeau's Holiday Open House McFall Gallery Wednesday, December 13, 2000 Thursday, December 14, 2000 2:30 PM - 4:30 PM Math/Stat Department Holiday Party Friday, December 15, 2000 3:30 PM COLLOQUIUM 459 MSc Jay GOPALAKRISHNAN, University of Minnesota "Mathematical Modeling of Catheter Ablation" ABSTRACT: Catheter ablation is now commonly used for treating cardiac arrhythmias. This talk will describe the basic principles and simplifications used to arrive at a set of partial differential equations that model ablating cardiac tissue. A finite element approach for numerically solving these equations will also be described. One goal of this study is to mathematically predict lesion sizes and their variation with electrode parameters and blood flow rate. Some partial results from work in progress will be shown. Colloquia for the 2000/2001 academic year The colloquium organizer this year is Tong Sun. Please contact him for details about the schedule. Fall 2000 Aug. 31 (Thursday): Departamental Fall Kick-Off, Countryside Room, MacDonald Sept. 1: No colloquium -- Labor Day weekend Sept. 8: Dr. Akihiro Munemasa, Kyushu University, Japan and University of Waterloo, Canada. Sept. 15: Dr. Waldemar Weber, Bowling Green State University. Sept. 22: Sept. 29: Dr. Cas Troskie, University of Cape Town, South Africa. Oct. 6: Dr. Kit Chan, Bowling Green State University. Oct. 13: No Colloquium -- Fall Break Oct. 20: OCTM Meeting in Toledo. Oct. 27: Dr. Tze-San Lee, Western Illinois University. Nov. 3: Nov. 10: No Colloquium -- Veteran's Day -- University Closed Nov. 17: Nov. 24: No Colloquium -- Thanksgiving Recess Dec. 1: Dec. 8: Dec. 15: Dec. 22: No Colloquium -- Exam Week Spring 2001 Jan. 19: Jan. 26: Feb. 2: Feb. 9: Feb. 16: Feb. 23: Mar. 2: Mar. 9: Mar. 16: No Colloquium -- Spring Break Mar. 23: Mar. 30: Apr. 6: Apr. 13: Apr. 20: Apr. 27: May 4: May 11: No Colloquium -- Exam Week Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. January 22 - 26, 2001 Wednesday, January 24 3:30 MATHEMATICAL FINANCE SEMINAR - Room 445 MSC "Statistical modelling of financial data" Gabor Szekely, BGSU Friday, January 26 3:30 Refreshments 3:45 COLLOQUIUM - Room 459 MSC Do Young KWAK, Korea Advanced Institute of Science and Technology "Recent Development of Multigrid Method: Nonconforming Finite Element" In this talk, we present multigrid method for solving elliptic p.d.e in a fast way. A brief introduction with some history will be followed by a few framework for which the convergence proof is carried out. Some conventional and nonconventional methods and theory will be introduced. We show some nonconventional methods have similar convergence behavior as conventional one. Moreover, for cell-centered f.d.m, we shall construct a prolongation operator which accelerate convergence rate together and show its V-cycle converges. ************************* NEXT WEEK ************************************ Monday, January 29 3:30 SPECIAL TALK ON STATISTICAL INFERENCE - Room 459 MSC "Stepwise test procedures based on ordered p-values" Eugene Seneta, University of Sydney and University of North Carolina Hypotheses H_1,H_2,...,H_n are to be simultaneously tested using univariate test statistics X_1,X_2,...,X_n which have joint continuous distribution. Individual P-values R_1,...,R_n are calculated from known marginal distributions of X_1,X_2,...,X_n, and are to be used to accept or reject H_i, i=1,...,n, while maintaining strong control of familywise error rate. In this talk, modifications of the well-known "Bonferroni" adjustment for dependence will be presented. Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. January 29 - February 4, 2001 Monday, January 29 3:30 SPECIAL TALK ON STATISTICAL INFERENCE - Room 459 MSC "Stepwise test procedures based on ordered p-values" Eugene Seneta, University of Sydney and University of North Carolina Hypotheses H_1,H_2,...,H_n are to be simultaneously tested using univariate test statistics X_1,X_2,...,X_n which have joint continuous distribution. Individual P-values R_1,...,R_n are calculated from known marginal distributions of X_1,X_2,...,X_n, and are to be used to accept or reject H_i, i=1,...,n, while maintaining strong control of familywise error rate. In this talk, modifications of the well-known "Bonferroni" adjustment for dependence will be presented. Tuesday, January 30, 2001 9:30 AM Algebra Seminar, 459 MSc John L. HAYDEN, BGSU "Roots of Incidence Matrices" Wednesday, January 31, 2001 3:30 PM Financial Math Seminar, MSc 445 Gabor SZEKELY, BGSU "Statistical Modelling of Financial Data" Thursday, February 1, 2001 3:45 PM Statistics Candidate Colloquium Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. February 5 - 11, 2001 Monday, February 5, 2001 Tuesday, February 6, 2001 9:30 AM Algebra Seminar 459 MSc John HAYDEN, BGSU "Roots of Incidence Matrices" (Part II) 3:30 PM STATISTICS CANDIDATE COLLOQUIUM 459 MSc Wednesday, February 7, 2001 3:30 PM Financial Math Seminar MSc 445 Gabor SZEKELY, BGSU "Statistical Modelling of Finanacial Data" (Part III) Thursday, February 8, 2001 Friday, February 9, 2001 3:30 PM STATISTICS CANDIDATE COLLOQUIUM 459 MSc Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. February 12 - 18, 2001 Monday, February 12, 2001 Tuesday, February 13, 2001 9:30 AM Algebra Seminar 459 MSc 3:30 PM COLLOQUIUM 459 MSc Mathematics Education Candidate Wednesday, February 14, 2001 3:30 PM COLLOQUIUM 459 MSc Statistics Candidate Thursday, February 15, 2001 2:30 PM Applied Mathematics Seminar 459 MSc 3:30 PM COLLOQUIUM 459 MSc Statistics Candidate Friday, February 16, 2001 3:30 PM COLLOQUIUM 459 MSc Mathematics Education Candidate Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. February 19-25, 2001 Monday, February 19, 2001 PRESIDENT'S DAY (you may have classroom visitors if you indicated that your class was available for visits) Tuesday, February 20, 2001 9:30 AM Algebra Seminar 459 MSc Sergey SHPECTOROV, BGSU 2:30 PM Advisory Committee 458 MSc Wednesday, February 21, 2001 3:30 PM Financial Math Seminar MSc 445 Thomas V. O'BRIEN, BGSU "Option Pricing" Part I ABSTRACT: The binomial option pricing model-arbitrage, a risk-free interest rate, and frictionless trading determine the prices of call and put options. Thursday, February 22, 2001 2:30 PM Applied Math Seminar 459 MSc 3:30 PM Statistics Seminar 459 MSc Zehua CHEN, National University of Singapore Friday, February 23, 2001 2:30 PM COLLOQUIUM 459 MSc Mathematics Education Candidate Weekly Calendar Weekly Calendar of Seminars, Talks, and Events Department of Mathematics & Statistics Bowling Green State University Jump to Colloquium Announcement. February 26 - March 4, 2001 Monday, February 26, 201 Tuesday, February 27, 2001 9:30 AM Algebra Seminar 459 MSc 2:30 PM Advisory Committee + Mathematics Education Search Committee 447 MSc Wednesday, February 28, 2001 3:30 PM Financial Mathematics Seminar MSc 445 Thomas V. O'BRIEN, BGSU "Option Pricing" Part II ABSTRACT: The Black-Scholes Option Pricing Formula derived: 1) As a limit of the binomial model. 2) As a consequence of the heat equation, the original Black-Scholes approach. Thursday, March 1, 2001 3:30 PM Statistics Seminar 459 MSc ********* Postponed to next Tuesday, March 6 at 3:30, same room ************ Zehua CHEN, National Univ of Singapore "Rank-Set Sampling" 3:30 PM COLLOQUIUM 459 MSc Candidate for the position in Analysis Friday, March 2, 2001 **PLEASE NOTE THAT THERE ARE 2 COLLOQUIA ON FRIDAY** 2:30 PM COLLOQUIUM 459 MSc Alfredo PERIS, Univ Politecnica de Valencia & Michigan State University "Universality and chaos of tensor products of operators" ABSTRACT: We give sufficient conditions for the universality of tensor products {T_n x R_n : n =0, 1, 2, ...} of sequences of operators defined on Frechet spaces. In particular we study when the tensor product T x R$ of
two operators is chaotic in the sense of
Devaney. Applications are given for natural operators on
function spaces of several variables, in infinite
holomorphy, and for multiplication operators on the
algebra L(E) following the work of Kit Chan.

3:30 PM     Refreshments   459 MSc

3:45 PM     COLLOQUIUM   459 MSc
Bon K. SY, Queens College-CUNY
"Data Mining Approach Based on Information- Statistical
Analysis: Application to Temporal-Spatial Data"

ABSTRACT: A treatment for temporal-spatial data such as
weather data using an information-statistical approach is
proposed. Conditioning on specific spatial nature of the
data, the temporal aspect of the data is first modeled
parametrically as Gaussian, and Schwartz information
criterion is then applied to detect multiple mean change
points, --- thus the Gaussian statistical models --- to
account for changes of the population over time.  To
examine the spatial characteristics of the data,
successive mean change points are qualified by finite
categorical values. The distribution of the finite
categorical values is then used to estimate a
non-parametric probability model through a non-linear
SVD-based optimization approach; where the optimization
criterion is Shannon expected entropy.  This optimal
probability model accounts for the spatial characteristics
of the data and is then used to derive spatial association
patterns subject to chi-square statistic hypothesis
test. The proposed approach is applied to examine the
weather data set obtained from the NOAA. Selected weather
data, with some spanning over 200 years, and covering
cities in different geographical localities over the
United States are studied.  ( Preliminary Report )
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

March 5-11, 2001

Tuesday, March 6, 2001

9:30 AM     Algebra Seminar   459 MSc
Corneliu HOFFMAN, BGSU
"On Curtis-Tits-Phan Type Theorems" Part III

2:30 PM     Advisory Committee     458 MSc

3:30 PM     COLLOQUIUM   459 MSc
Analysis Candidate

Wednesday, March 7, 2001

3:30 PM     Financial Math Seminar   445 MSc
Thomas V. O'BRIEN, BGSU
"Option Pricing" Part III (Final)
ABSTRACT: The Black-Scholes Option Pricing Formula derived
as a limit of the binomial model.

3:30 PM     Statistics Seminar   447 MSc
Zehua CHEN, National University of Singapore
"Rank-Set Sampling" Part II & III

Thursday, March 8, 2001

3:30 PM     COLLOQUIUM   459 MSc
Analysis Candidate

Friday, March 9, 2001

3:30 PM     COLLOQUIUM   459 MSc
Analysis Candidate

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

March 19 - 25, 2001

Monday, March 19, 2001

Tuesday, March 20, 2001

9:30 AM     Algebra Seminar   459 MSc
Ralf GRAMLICH, Eindhoven Univ of Tech
"Non-incident Point-hyperplane Pairs
in Projective Spaces"

2:30 PM     Advisory Committee     458 MSc

Wednesday, March 21, 2001

3:30 PM     Financial Math Seminar   MSc 445
Thomas A. HERN, BGSU
"A Geometric View of Reducing Risk
in a Portfolio"
ABSTRACT:  An observation of Norton in 1995
applies Bezier curves to analyze the relationship
between risk and return as formulated by Markowitz
in his Nobel Prize work in the 50s.  We get a clear
geometric view of the counter-intuitive idea that
by mixing two stocks (diversity), you can get a
return which is greater than the lowest of the two,
and with lower overall risk.

Thursday, March 22, 2001

2:30 PM     Applied Math Seminar   459 MSc
Daria FILIPPOVA, BGSU
"Numerical Example of Using the
Stability Indicator for Long-Term
Error Estimates"

4:00 PM     Statistics Seminar   459 MSc
Norbert HENZE, University  of Karlsruhe, Germany
"Goodness of fit tests for the Inverse Gaussian distribution
based on the empirical characteristic function "

Friday, March 23, 2001

12:00 PM   MAA Ohio Section Meeting
Talks will be held in various
locations in Olscamp Hall
For the complete program, including contributed
paper schedule and abstracts, look at
http://www.math.uakron.edu/~tprice/MAA/program.htm
or www.maa.org/Ohio
or go the the department web page.

Saturday, March 24, 2001

8:00 AM   MAA Ohio Section Meeting continues
Talks will be held in various
locations in Olscamp Hall
For the complete program, including contributed
paper schedule and abstracts, look at
http://www.math.uakron.edu/~tprice/MAA/program.htm
or www.maa.org/Ohio
or go the the department web page.

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

March 26 - April 1, 2001

Monday, March 26, 2001

Tuesday, March 27, 2001

The main office will be closed from 9:30 - 11:00 AM
so the staff may attend the Classified Staff Awards
Ceremony.

9:30 AM     Algebra Seminar   459 MSc

2:30 PM     Advisory Committee     458 MSc

Wednesday, March 28, 2001

3:30 PM     Financial Math Seminar   MSc 445
Victor T. NORTON, BGSU
"Principal Components of Risk"
ABSTRACT:  Investments involve risk and reward.
The reward side is pretty much one-dimensional:
returns are what count. Risk, on the other hand,
has many dimensions--value vs growth, small cap
vs large cap, bond duration, bond quality, etc.
In this talk we describe how risk can be decomposed
into its "principal components."

Thursday, March 29, 2001

2:30 PM     Applied Math Seminar   459 MSc

4:00 PM     Statistics Seminar   459 MSc

Friday, March 30, 2001

3:30 PM     COLLOQUIUM   459 MSc
Professor Norbert HENZE
Distinguished Visiting Lukacs Prof.
University of Karlsruhe, Germany
"On the BHEP class of tests for
multivariate normality"
ABSTRACT:  This talk reviews affine invariant
tests for multivariate normality, with emphasis
on recent results on a class of practicable
universally consistent tests that are based on
the empirical characteristic function.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 2 - 8, 2001

Monday, April 2, 2001

11:30 AM    Analysis Seminar   459 MSc
Kit C. CHAN, BGSU
"Hereditarily Hypercyclic Operators"

3:30 PM     Lukacs Lecture Series   210 MSc
Distinguished Visiting Lukacs Professor
"How Wrong Can I Be (and what does
+- really mean?)"

Tuesday, April 3, 2001

9:30 AM     Algebra Seminar   459 MSc
Corneliu HOFFMAN, BGSU
"Quantum Groups"

2:30 PM     Advisory Committee     458 MSc

3:30 PM     Lukacs Lecture Series   220 MSc
Distinguished Visiting Lukacs Professor
"Microarrays and Empirical Bayes"

Wednesday, April 4, 2001

3:30 PM     Lukacs Lecture Series   210 MSc
Distinguished Visiting Lukacs Professor
"The Two-Way Proportional Hazards Model"

Thursday, April 5, 2001

2:30 PM     Lukacs Lecture Series   459 MSc
Distinguished Visiting Lukacs Professor
"Model Selection and the Bootstrap"

Friday, April 6, 2001

2:30 PM     COLLOQUIUM #1   459 MSc
********* CANCELED *************************************
Bruce SUTER, USAF Research Lab., Rome
"Recent Developments in Multirate and
Wavelet Signal Processing"
ABSTRACT:  This talk will begin with a brief
introduction to multirate and wavelet signal
processing. Then, recent developments will be
presented. Future research directions will also be
discussed.

3:30 PM     Refreshment Break   459 MSc

3:45 PM     COLLOQUIUM #2   459 MSc
Motomu IBARAKI, Dept of Geological Sciences
Ohio State University
"Numerical Modeling of Coupled Processes
in the Subsurface: Examples in density-
dependent flow and organic solvent
remediation"
ABSTRACT:  The study of coupled processes is the new
frontier for modeling of hydrogeological processes.
The interaction among ground-water flow, solute
transport and chemical reactions is one example of
such coupled processes. There are a variety of
different settings in which these processes develop.
Examples include uncontrolled landfills, saltwater
intrusion and toxic chemical disposal sites. Although
several approaches can be used to investigate coupled
processes, numerical modeling has demonstrated its
robustness and applicapability for scientific investigation.
Thus, a major focus of my research is on numerical
investigation of these problems. Today, I will talk about
the numerical modeling of density coupled fluid flow and
reactive mass transport. This topic is important, for
example, in chemical flooding for the in-situ treatment
of a contamination zone, saltwater intrusion in a coastal
aquifer, and reactive density-dependent fluid flow in
saturated porous media. I will touch on the important
implications of numerical modeling for practical problems
such as the emplacement of a nuclear waste facility in the
bedrock and the in-situ treatment of an organic solvent
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 9 - 15, 2001

Monday, April 9, 2001

11:30 AM    Analysis Seminar   459 MSc
Kit C. CHAN, BGSU
"Hereditarily Hypercyclic Operators II"

Tuesday, April 10, 2001

9:30 AM     Algebra Seminar   459 MSc
Corneliu HOFFMAN, BGSU
"Quantum Groups, II"

2:30 PM     Personnel Committee     400 MSc

Wednesday, April 11, 2001

3:30 PM     Financial Math Seminar   MSc 445
Victor T. NORTON, BGSU
"Principal Components of Risk, Part II"
ABSTRACT:  Investments involve risk and reward.
The reward side is pretty much one-dimensional:
returns are what count. Risk, on the other hand,
has many dimensions--value vs growth, small cap
vs large cap, bond duration, bond quality, etc.
In this talk we describe how risk can be decomposed
into its "principal components."

Thursday, April 12, 2001

2:30 PM     Applied Math Seminar   459 MSc
Bernarda ELEC, BGSU
"Stress-displacement Mixed Finite
Elementa for Elasticity"

Friday, April 13, 2001

No colloquium this week.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 16 - 22, 2001

Monday, April 16, 2001

11:30 AM    Analysis Seminar   459 MSc
Juan MARIN, BGSU
"Littlewood's Subordination Principle"

Tuesday, April 17, 2001

9:30 AM     Algebra Seminar   459 MSc
W. Charles HOLLAND, BGSU
"Divisible Ordered Groups"

2:30 PM     Advisory Committee     458 MSc

Wednesday, April 18, 2001

3:30 PM     Financial Math Seminar   MSc 445
Maria HONG, BGSU
"Estimation of the Beta of a Security"
ABSTRACT:  According to the single market index model,
a security has two sources of risk: the part
attributable to systematic or market risk, and the
firm-specific risk.  Estimation of the regression
model provides the beta coefficient as a measure of
security risk.  The index model also offers insight
into portfolio diversification.

Thursday, April 19, 2001

2:30 PM     Applied Math Seminar   459 MSc

Friday, April 20, 2001

3:30 PM     COLLOQUIUM   459 MSc
Hanfeng CHEN, BGSU
"On Tests in Finite Mixture Models"
ABSTRACT:  Finite mixture models are often used to
study data from a population that is suspected to be
composed of a number of homogeneous subpopulations.
For example, mixture distributions are used routinely
to accommodate the genetic heterogeneity thought to
underlie many human diseases. When the finite mixture
models are used to model data, we often wish to use
the fewest components that provides a satisfactory fit
to the data. In some problems we may want to know
whether the population is a mixture with a particular
number of homogeneous subpopulations. These
considerations lead to the testing problems
in the finite mixture models. In this talk difficulties
in testing for a finite mixture model will be discussed
and the latest results and developments will be present.
The talk is based on joint work with J. Chen and J.D. Kalbfleisch.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 23 - 29, 2001

Monday, April 23, 2001

11:30 AM    Analysis Seminar   459 MSc
Rebecca SANDERS, BGSU
"Spectral Theory and Hypercyclic
Subspaces"

Tuesday, April 24, 2001

9:30 AM     Algebra Seminar   459 MSc
W. Charles HOLLAND, BGSU
"Divisible Ordered Groups, Part II"

2:30 PM     Advisory Committee     458 MSc

Wednesday, April 25, 2001

3:30 PM     Financial Math Seminar   MSc 445
Gabor J. SZEKELY, BGSU
"The Last Chance"
ABSTRACT:  After many interesting seminar talks
given by Tom O'Brien, Tom Hern, Vic Norton, and
Maria Hong if you still do not know how to invest
your money, then this last seminar talk is the
last chance to learn about new guidelines, golden
rules.

Thursday, April 26, 2001

2:30 PM     Applied Math Seminar   459 MSc

3:30 PM     COLLOQUIUM   459 MSc
Florian LUCA, UNAM, Morelia, Mexico
"Binomial Coefficients and Lucas
Sequences"
ABSTRACT:  See the notice board for the full
length abstract of this talk.

4:00 PM     Statistics Seminar     MSc 445
Maria HONG, BGSU
"Nonparametric Tests for Comparing
Distributions"
ABSTRACT:  The talk summarizes the research directions of
Maria's PhD Dissertation.

Friday, April 27, 2001

3:30 PM     COLLOQUIUM   459 MSc
Warren Wm. McGOVERN, BGSU
"Integral Domains with Factorization
Properties and their Groups of
Divisibility"
ABSTRACT:  The ring of integers has the property
that every integer greater than 1 may be factored
uniquely as a product of primes (irreducibles).
An integral domain with this property is called
Unique Factorization Domain.  The talk will consider
other domains with different types of factorization properties.  If
time permits we shall discuss the
group of divisibility of a domain and its relationship
to the aforementioned domains.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 30 - May 6, 2001

Monday, April 30, 2001

11:30 AM    Analysis Seminar   459 MSc
William ROLLI, BGSU
"More on a-Pointwise Inner Products"

Tuesday, May 1, 2001

9:30 AM     Algebra Seminar   459 MSc
Ramiro LAFUENTE-RODRIGUEZ, BGSU
"Some Examples of Ordered Groups"

Wednesday, May 2, 2001

Thursday, May 3, 2001

Friday, May 4, 2001

3:30 PM     COLLOQUIUM   459 MSc
En-Bing LIN, University of Toledo
"Wavelet Transforms, Interpolations,
and Applications"
ABSTRACT:  Wavelets and wavelet techniques have
recently generated much interest, both in applied
areas as well as in theoretical mathematics.
Wavelet theory provides a unified framework for a
number of techniques which had been developed
independently for many different fields, ranging
from pure mathematics to quantum physics,
electrical engineering as well as various image
and signal processing applications.  In this talk,
I will compare wavelet transforms with Fourier
transforms and state their properties.  Various
scaling function interpolations will be introduced
I will also mention some interesting applications
such as numerical solutions of partial differential
equations and image processing.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Week of September 3 -- 7

Monday, September 3

Labor Day, no classes

Tuesday, September 4

10:40 AM   Statistics Seminar  400 MSc
Dr. Yasunari Fujikoshi, Hiroshima University, Japan,
Distinguished Lukacs Professor, BGSU
"Sample Mean and Sample Covariance: Some Preliminaries"

Wednesday, September 5, 2001

Thursday, September 6, 2001

11:30 AM   Analysis Seminar   459 MSc
Kit CHAN, Bowling Green State University
"Bernoulli Numbers"
ABSTRACT: One can use the Fourier series for x^2 to calculate
the value of the infinite sum of 1/n^2, and also the infinite
sum of 1/n^4.  In the seminar, we see how to use the Bernoulli
Numbers to calculate the infinite sum of the even powers of 1/n
in general.

4:00 PM     Finance Seminar     445 MSc

Friday, September 7

3:30 PM   Refreshments  459 MSc
3:45 PM   DEPARTMENTAL COLLOQUIUM  459 MSc
Jason C. Hsu, The Ohio State University
"Making Statistical Decisions in Pharmaceutics Scientifically"

Abstract:

Statistical problems in pharmaceutics are global, recurrent, and
scientifically relatively well defined.  Examples of three such
problems are:

Bioequivalence: Is a generic version practically equivalent to
Prozac?

Dose-response: What is the therapeutic window for Claritin?

Multiple endpoints: Does a new compound improve both short term
memory and global cognition for Alzheimer patients?

Regulatory decisions granting approval are supposed to be made
in such a way that at most 1 decision out of 20 is wrong, in the
long run.  I will describe a new'' statistical principle
(called partitioning) for making sound decisions in problems
that involve multiplicity'' such as these.  As I describe
these problems scientifically, you are invited to formulate them
statistically for/with me (bait), to check the appropriateness
of what we teach or are taught, and to participate in the
on-going formulation of the multiple endpoints problem (hook).

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

September 10 - 16, 2001

Monday, September 10, 2001

Tuesday, September 11, 2001

10:40 AM     Lukacs Lecture      400 MSc
Dr. Yasunari FUJIKOSHI, Hiroshima University
"Asymptotic Expansions of Some Multivariate
Basic Statistics Under Non-Normality:
Multivariate t-Statistic and One-Way MANOVA
Tests"

Wednesday, September 12, 2001

Thursday, September 13, 2001

11:30 AM     Algebra Seminar     400 MSc
TBA

11:30 AM     Analysis Seminar    459 MSc
Kit CHAN, Bowling Green State University
"Hurwitz's Solution for the Isoperimetric Problem"

ABSTRACT: Isoperimetric Problem asks for the curve of
length 1 that encloses the largest area.  Everyone
knows the answer is the circle with diameter 1/pi.  We
see how Hurwitz used Fourier series to find the
circle, based on a method originally developed by
Courant and Hilbert in 1953.

Friday, September 14, 2001

3:30 PM      COLLOQUIUM           459 MSc
********* CANCELLED ************
Rieuwert BLOK, Michigan State University
"Partial Orders on Coxeter Groups:
Generalizations of the BeSo Order"

ABSTRACT: In order to compute the coefficients in
their recently discovered Pieri type formulas Bergeron
and Sottile devised two new partial orders on Coxeter
groups of type An and Bn which they called the
Grassmann and Lagrange order respectively.  These
Pieri formulas compute certain special products in the
cohomology ring of flag manifolds and are a
generalization of similar formulas that go back to
Chevalley (and Pieri). The Grassmann and Lagrange
order are closely related to the Bruhat-Chevalley
order which plays a key role in the formula of
Chevalley. A problem is that it is still unknown
whether similar orders exist on Coxeter groups of
types other than An and Bn.

One approach could be the following: Bennett, Evani
and Grabiner discovered that the Grassmann order on
the symmetric group has an elegant presentation as a
so called T-order. In this presentation the order
was called a BeSo order.

The hope is that this presentation form will help find
orders similar to the Grassmann order for other
Coxeter groups. In fact, it turns out that indeed the
Lagrange order on the Coxeter group of type Bn can
be given such a presentation as well. We'll also
discuss some preliminary results on the case of the
Coxeter group of type Dn which is still very much
open.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

September 17 - 23, 2001

Monday, September 17, 2001

Tuesday, September 18, 2001

10:40 AM     Lukacs Lecture      304 MSc
Dr. Yasunori FUJIKOSHI, Hiroshima University
"Some Test Statistics for Multivariate Linear
Hypothesis"

Wednesday, September 19, 2001

Thursday, September 20, 2001

11:30 AM     Algebra Seminar   459 MSc
TBA

1:00 PM     Analysis Seminar    459 MSc
Rebecca SANDERS, Bowling Green State University
"Somewhere Dense Orbits are Everywhere Dense,
by Bourdon and Feldman"

2:30 PM      Finance Seminar     400 MSc
"Futures Markets and the Use of Futures for Hedging"

ABSTRACT:  Futures contract is a common tool that is used
in financial market.  This time we will explain how the
exchanges organize the trading of futures contracts, the
specification of contracts, the operation of margin
accounts, the way in which quotes are made, and how futures
contracts are used for hedging.

Friday, September 21, 2001

3:30 PM      COLLOQUIUM           459 MSc
Yo SHEENA, Department of Economics
Shinshu University
"The Orthogonally Invariant Estimation of the
Multivariate Normal Variance or Precision Matrix"

ABSTRACT:   We talk about the orthogonally invariant
estimation of the variance or precision matrix of normal
distribution when the mean is known from the standpoint of
decision theory. This problem is equivalent to the estimation
of the sigma of Wishart distribution. We will present some
conditions for the estimators being admissible or minimax.

Saturday, September 22, 2001

Sunday, September 23, 2001
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

September 24 - 30, 2001

Monday, September 24, 2001

Tuesday, September 25, 2001

10:40 AM    Lukacs Lecture      400 MSc
Dr. Yasunori FUJIKOSHI, Hiroshima University
"Asymptotic Expansions Under Nonnormality;
Tests for Variance Matrices and Characteristic
Roots and Vectors of Some Random Matrices"

Wednesday, September 26, 2001

Thursday, September 27, 2001

11:30 AM    Algebra Seminar     459 MSc

1:00 PM     Analysis Seminar    459 MSc
Neal L. CAROTHERS, BGSU
"Tensor Products"

ABSTRACT: Our first talk will begin with the (analyst's)
definition of the tensor product of two vector spaces.  We
will also discuss various norms on tensor products and
their relationship to operator theory.

6:30 PM   Actuarial Exam 1 Study Group   459 MSc

Friday, September 28, 2001

3:30 PM     COLLOQUIUM           459 MSc
Warren McGovern, BGSU
"Rings of continuous functions"
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

October 1 - 7, 2001

Monday, October 1, 2001

Tuesday, October 2, 2001

10:40 AM  Lukacs Lecture      400 MSc
Dr. Yasunori FUJIKOSHI, Hiroshima University
"Selection of Variables and Reduction of
Dimensionality in Some Multivariate Models"
("Model Selection Criterion - AIC and
Variable Selection Models")

7:00 PM   KME Meeting           459 MSc

Wednesday, October 3, 2001

Thursday, October 4, 2001

11:30 AM  Algebra Seminar     459 MSc
Sergey SHPECTOROV, Bowling Green State University
"Inverse Galois Theory, Part III"

1:00 PM   Analysis Seminar    447 MSc (note new room)
Neal L. CAROTHERS, Bowling Green State University
"Tensor Products, II"

ABSTRACT:  We discuss the least and greatest crossnorms
and their relation to operator theory.

2:30 PM   Buildings (Groups & Geometries) Seminar
400 MSc
Curtis BENNETT, Bowling Green State University
"Abstract Characterizations of Coxeter Groups,
Part II"

4:00 PM   Finance Seminar     445 MSc
Yingchun ZHOU, Bowling Green State University

ABSTRACT:  We'll discuss general properties of futures price.
In particular, we'll talk about Interest Rate Futures, which
is one major type of futures contracts traded.  The concept
of "duration" will also be discussed.  It is a key measure of
securities and financial derivatives.
Mr. Bob Soltis, who has long time experience in stock and
futures trading, will attend this seminar.  We can discuss
with him whatever interests us.

6:30 PM   Actuarial Exam 1 Study Group  459 MSc

Friday, October 5, 2001

3:30 PM   COLLOQUIUM           459 MSc
Zeljko CUCKOVIC, University of Toledo
"Brown-Halmos Theorem for Bergman Space
Toeplitz Operators"

ABSTRACT:  In 1964, Brown and Halmos proved that a
product of two Hardy space Toeplitz operators is again
a Toeplitz operator only in the trivial cases.  We will
talk about the analogues of Brown-Halmos theorem for
Toeplitz operators on the Bergman space.  We give examples
that show that Brown-Halmos fails on the Bergman space, but
we obtain a Brown-Halmos type of theorem if we put reasonable
restrictions on the symbols.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

October 8 - 14, 2001

Monday, October 8, 2001

Tuesday, October 9, 2001

10:40 AM  Lukacs Lecture      400 MSc
Dr. Yasunori FUJIKOSHI, Hiroshima University
"Selection of Variables and Reduction of
Dimensionality in Some Multivariate Models" OR
"Multivariate Regression Model"

Wednesday, October 10, 2001

Thursday, October 11, 2001

NO CLASSES - FALL BREAK

Friday, October 12, 2001

NO CLASSES - FALL BREAK

Saturday, October 13, 2001

FALL BREAK
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

October 15 - 21, 2001

Monday, October 15, 2001

Tuesday, October 16, 2001

10:40 AM  Lukacs Lecture      400 MSc
Dr. Yasunori FUJIKOSHI, Hiroshima University
"Selection of Variables and Reduction of
Dimensionality in Discriminant Analysis"

Wednesday, October 17, 2001

Thursday, October 18, 2001

11:30 AM  Algebra Seminar     459 MSc
Sergey SHPECTOROV, BGSU
"Inverse Galois Theory"

1:00 PM   Analysis Seminar    447 MSc
Corneliu HOFFMAN, BGSU
"Even More Tensor Products from a Non-Analyst
Point of View"

2:30 PM   Buildings (Groups & Geometries) Seminar
400 MSc

4:00 PM   Finance Seminar     400 MSc

ABSTRACT:  We'll continue on Futures contract; the
convergence of futures price to spot price, the optimal
hedge ratio using futures contract, etc.  Since Futures
price and forward price are closely related, we'll first
generate the formulae for forward price on three principal
types of contracts and a general result for all types of
contracts, then try to determine the futures price, which
is crucial if you do futures trading.

6:30 PM   Actuarial Exam 1 Study Group  459 MSc

Friday, October 19, 2001

3:30 PM   COLLOQUIUM           459 MSc
Rieuwert BLOK, Michigan State University
"Partial Orders on Coxeter Groups:
Generalization of the BeSo Order"

ABSTRACT:  In order to compute the coefficients in
their recently discovered Pieri type formulas
Bergeron and Sottile devised two new partial orders
on Coxeter groups of type An and Bn which they
called the Grassmann and Lagrange order respectively.
These Pieri formulas compute certain special products
in the cohomology ring of flag manifolds and are a
generalization of similar formulas that go back to
Chevalley (and Pieri). The Grassmann and Lagrange order
are closely related to the Bruhat-Chevalley order which
plays a key role in the formula of Chevalley. A problem
is that it is still unknown whether similar orders exist
on Coxeter groups of types other than An and Bn.

One approach could be the following: Bennett, Evani and
Grabiner discovered that the Grassmann  order on the
symmetric group has an elegant presentation as a so
called T-order. In this presentation the order was
called a BeSo order.

The hope is that this presentation form will help find
orders similar to the Grassmann order for other Coxeter
groups. In fact, it turns out that indeed the Lagrange
order on the Coxeter group of type Bn can be given
such a presentation as well. We'll also discuss some
preliminary results on the case of the Coxeter group of
type Dn which is still very much open.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

October 22 - 28, 2001

Monday, October 22, 2001

Tuesday, October 23, 2001

10:40 AM  Lukacs Lecture      400 MSc
Dr. Yasunori FUJIKOSHI, Hiroshima University
"Error Bounds in Asymptotic Expansions of Scale
Mixtures and Their Applications"

11:30 AM   Groups & Geometries Seminar   459 MSc
Dr. Sergey SHPECTOROV, BGSU
"Coxeter Systems"

Wednesday, October 24, 2001

Thursday, October 25, 2001

11:30 AM  Algebra Seminar     459 MSc
Dr. Sergey SHPECTOROV, BGSU
"Inverse Galois Theory"

1:00 PM   Analysis Seminar    447 MSc
Dr. Corneliu HOFFMAN, BGSU
"Even More Tensor Products"

6:30 PM   Actuarial Exam 1 Study Group  459 MSc

Friday, October 26, 2001

**LAST DAY FOR STUDENTS TO "WP" FROM A COURSE**

Noon - 8:30 PM   MAA OHIO SECTION MEETING
Marietta College, Marietta, OH
For program see:  www.maa.org/Ohio

3:30 PM   COLLOQUIUM           459 MSc
Professor Vladimir ULYANOV, Moscow State University
"Characterization and Stability Problems for
(joint result with Yu. Prohorov and G. Christoph)

ABSTRACT:  Let Q(x1,...,xn) be a quadratic non-degenerate
form in variables x1,...,xn. Let Z1,...,Zn be independent
identically distributed random variables with a symmetric
distribution F. We say a pair (Q,F) has a characterization
property if and only if coincidence of distributions of
Q(Z1,...,Zn) and Q(Y1,...,Yn) for a sequence of i.i.d.
symmetric random variables Y1,...,Yn implies that Z1 and
Y1 are identically distributed.  We give sufficient
conditions under which (Q,F) has characterization property.
The corresponding stability problems are also discussed.

Saturday, October 27, 2001

8:00 AM - 4:30 PM   MAA OHIO SECTION MEETING continues
Marietta College, Marietta, OH
For program see:  www.maa.org/Ohio

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

October 29 - November 4, 2001

Monday, October 29, 2001

12:30 PM   Undergraduate Committee Meeting   400 MSc

Tuesday, October 30, 2001

10:40 AM   Lukacs Lecture      400 MSc
Dr. Yasunori FUJIKOSHI, Hiroshima University
"Error Bounds in Asymptotic Expansions of Scale
Mixtures and Their Applications II"

11:30 AM   Buildings (Groups & Geometries) Seminar
459 MSc
Dr. Sergey SHPECTOROV, BGSU
"Chamber Systems"

Wednesday, October 31, 2001

Thursday, November 1, 2001

11:30 AM  Algebra Seminar     459 MSc
Dr. Warren Wm. McGOVERN, BGSU
TOPIC TO BE ANNOUNCED

1:00 PM   Analysis Seminar    447 MSc
William ROLLI, BGSU
"Symmetric Approximations of Finite Frames for
Subspaces of a Hilbert Space"

4:00 PM   Finance Seminar     400 MSc

SUMMARY: Discuss how forward prices and futures prices are
related to the price of the underlying asset.  Three types of
underlying securities are discussed and a general result is
concluded.  Last time we had a good time just sitting together
and discussing short selling.  This time we will also try
sitting together and learning.  Hope you can come.

6:30 PM   Actuarial Exam 1 Study Group  459 MSc

Friday, November 2, 2001

Last Day to Order the BGSU/Math & Stat shirts
in Cyndi Patterson's office (456 MSc)

9:30 AM   CONFERENCE on the SCHOLARSHIP of
TEACHING AND LEARNING     Olscamp Hall
SEE: web page

3:30 PM   COLLOQUIUM     459 MSc
John HOLCOMB, Cleveland State University
"Assessing Student Learning in Introductory Statistics:
An Authentic Assessment Approach"

ABSTRACT: This talk will recount my efforts to evaluate student
learning in introductory statistics.  My goal was to measure the
effectiveness of a sequence of data analysis projects where
students use real data, computer software, and teams to
construct a written data analysis report that I would grade 50%
on writing components and 50% on statistical components.  This
investigation led to difficult issues about evaluation, control
groups, measuring effectiveness and what it is I want students
to have learned in such a class.  I will share my approach,
which is by no means exemplary, and the findings of my
investigation.

Saturday, November 3, 2001

FAMILY WEEKEND
SEE:  BGSU calendar

Sunday, November 4, 2001

FAMILY WEEKEND

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

November 5 - 12, 2001

Monday, November 5, 2001

9:00 AM - 10:00 PM   Critical Thinking About Values:
(Starts Hourly)   A Community Discussion   101 OLSC

12:30 PM   Undergraduate Committee Meeting   400 MSc

Tuesday, November 6, 2001

9:00 AM - 10:00 PM   Critical Thinking About Values:
(Starts Hourly)   A Community Discussion   101 OLSC

10:40 AM   Lukacs Lecture      400 MSc
Dr. Yasunori FUJIKOSHI, Hiroshima University
"Transformations of Improved Normal or Chi-Squared
Approximations"

11:30 AM   Buildings (Groups&Geometries) Seminar    459 MSc
Dr. Sergey SHPECTOROV, BGSU
"Chamber Systems: Definition and Examples"

3:00 PM   DEPARTMENT MEETING   459 MSc
(Tenure & Tenure-Track)

6:30 PM   KME Meeting     459 MSc
"Panel on Math Careers"

ABSTRACT:  Are you interested in math??
What does math have to offer?
exist in mathematics?
What kind of research is there?
How do I get into graduate school?
What kinds of jobs can I get with a math degree?
How do I decide what branch of math to study?

Come to our informal panel discussion where REAL
mathematics!!  Everyone is welcome!!
REFRESHMENTS will be served!!

Wednesday, November 7, 2001

Thursday, November 8, 2001

11:30 AM  Algebra Seminar     459 MSc
Dr. Warren Wm. McGOVERN, BGSU

1:00 PM   Analysis Seminar    447 MSc
Bill ROLLI, BGSU
"Symmetric Approximations of Finite Frames for
Subspaces of a Hilbert Space, Part 2"

4:00 PM   Finance Seminar     400 MSc
Jianghua HE, BGSU

This time, we will talk about an interesting topic--swaps, an
extension of the forward and future contract. What is swaps,
why companies would like to swap? Two major kinds of swaps,
Interest Rate Swaps and Currency Swaps are focused on to
explain these questions. Welcome to the seminar.

Friday, November 9, 2001

3:30 PM   COLLOQUIUM           459 MSc
Dr. Joan KRONE, Denison University
"Derived Logics: Why Do We Need Them and How
Can We Use Them?"

ABSTRACT: In 1936, Birkhoff and von Neumann proposed a
nonstandard logic to describe quantum mechanics.  In quantum
logic, the distributive laws of Boolean logic do not hold.
Hilary Putnam argued that the relationship between Boolean
logic and quantum logic was closely analogous to that between
non-Euclidean and Euclidean geometry: in each case, the latter
system is merely an approximation of the more fundamental
former system.

It turns out that any physical theory with a mathematical space
of physical states and an adequate description of measurement
naturally yields a logic-like structure of experimental
propositions and that this "derived" logic can be non-Boolean
even for theories much less radical than quantum theory.

For example, in the field of digital computers, we analyze
computations based on the assumption that inputs to gates are
either 0 or 1, but the reality is that the inputs are "high"
voltage or "low" voltage, hence depending on some physical
measurement.  When considering physical measurement as part of
the determination as to what inputs and outputs should be
associated with a given gate, one can no longer carry out the
reasoning with Boolean logic.  We will examine derived logics
are a reasonable alternative.

Saturday, November 10, 2001

Sunday, November 11, 2001

Monday, November 12, 2001

VETERAN'S DAY OBSERVED -- NO CLASSES
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

November 12 - 18, 2001

Monday, November 12, 2001

NO CLASSES - VETERAN'S DAY OBSERVED

Tuesday, November 13, 2001

9:00 AM - 1:00 PM   M.A. Comprehensive Exams   459 MSc

10:40 AM   Lukacs Lecture      400 MSc
Dr. Yasunori FUJIKOSHI, Hiroshima University
"Some Results on High-Dimensional Approximation"

11:30 AM   Algebra Seminar    459 MSc
Dr. Michael ROITMAN, University of Michigan
"A Survey of Vertex Operator Algebras"

Wednesday, November 14, 2001

Thursday, November 15, 2001

9:00 AM - 1:00 PM   M.A. Comprehensive Exams   400 MSc

11:30 AM  Buildings (Groups & Geometries) Seminar
459 MSc
Dr. Sergey SHPECTOROV, BGSU
"Chamber Systems: Definition and Examples"

Analysis Seminar - NO MEETING THIS WEEK

4:00 PM   Finance Seminar     400 MSc
Yingchun ZHOU, BGSU
"Interest Rate and Currency Swaps"
*** Cancelled ***
ABSTRACT: Swap is an agreement to exchange certain things
in a certain way in the future. It is another important
financial instrument besides futures and options. We'll
review the mechanics of interest rate swap and currency
swap, continue to talk about the valuation of interest
swap and currency swap, introduce a little bit about other
swaps and discuss on credit risk relating swaps. This
should be interesting. Hope you'll come.

Friday, November 16, 2001

3:30 PM   COLLOQUIUM           459 MSc
Dr. Jeff WU, University of Michigan
"A System of Experimental Design"

ABSTRACT: A system of experimental design is outlined that
attempts to encompass many of the major work in factorial
experimental design of the 20th century.  The system has
four broad branches: (i) regular orthogonal designs, (ii)
nonregular orthogonal designs, (iii) response surface
designs,(iv) optimal designs.  Regular orthogonal designs
include the 2^{n-k} and 3^{n-k} designs. Major issues are
optimal assignment of factors and interactions via the
minimum aberration and related criteria. The problem
becomes harder if the factors cannot be treated
symmetrically (e.g., blocking or split-plot structure, and
robust parameter designs.)  Nonregular orthogonal designs
were traditionally used for factor screening and main
effect estimation. They have been shown to possess some
hidden projection property that allows interactions among
a smaller number of factors to be estimated. Response
surface designs are used primarily for exploring
parametric surfaces, while optimal designs are chosen to
optimize a given criterion based on a specified model.
Recent work shows that many nonregular designs can be used
to screen a large number of factors as well as efficiently
estimate a quadratic response surface on projected
designs. This shows that the boundary between (ii) and
(iii) is getting blurred.

Saturday, November 17, 2001

Sunday, November 18, 2001

November 19-25, 2001

Monday, November 19, 2001

12:30 PM   Undergraduate Committee Meeting   400 MSc

Tuesday, November 20, 2001

10:40 AM   Lukacs Lecture      400 MSc
Dr. Yasunori FUJIKOSHI, Hiroshima University

11:30 AM   Buildings (Groups & Geometries) Seminar
459 MSc
Dr. Sergey SHPECTOROV, BGSU
"Chamber Systems"

12:00 PM   Graduate Committee Meeting   400 MSc
AGENGA:  *Deliberate on comprehensive exam results
*MAT proposal

Wednesday, November 21, 2001

NO CLASSES - THANKSGIVING RECESS BEGINS

Thursday, November 22, 2001

THANKSGIVING DAY

Friday, November 23, 2001

THANKSGIVING RECESS

Saturday, November 24, 2001

THANKSGIVING RECESS

Sunday, November 25, 2001

THANKSGIVING RECESS
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

November 19-25, 2001

Monday, November 19, 2001

12:30 PM   Undergraduate Committee Meeting   400 MSc

Tuesday, November 20, 2001

10:40 AM   Lukacs Lecture      400 MSc
Dr. Yasunori FUJIKOSHI, Hiroshima University

11:30 AM   Buildings (Groups & Geometries) Seminar
459 MSc
Dr. Sergey SHPECTOROV, BGSU
"Chamber Systems"

12:00 PM   Graduate Committee Meeting   400 MSc
AGENGA:  *Deliberate on comprehensive exam results
*MAT proposal

Wednesday, November 21, 2001

NO CLASSES - THANKSGIVING RECESS BEGINS

Thursday, November 22, 2001

THANKSGIVING DAY

Friday, November 23, 2001

THANKSGIVING RECESS

Saturday, November 24, 2001

THANKSGIVING RECESS

Sunday, November 25, 2001

THANKSGIVING RECESS
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

November 26 - December 2, 2001

Monday, November 26, 2001

12:30 PM   Undergraduate Committee Meeting   400 MSc

Tuesday, November 27, 2001

10:40 AM   Lukacs Lecture      400 MSc
Dr. Yasunori FUJIKOSHI, Hiroshima University
"Model Selection Criteria for an Extended Growth
Curve Model"

11:30 AM   Buildings (Groups & Geometries) Seminar
459 MSc

Wednesday, November 28, 2001

Thursday, November 29, 2001

11:30 AM  Algebra Seminar     459 MSc

1:00 PM   Analysis Seminar    447 MSc
Juan MARIN, BGSU
"The Spectral Theorem for Normal Operators"

4:00 PM   Finance Seminar     400 MSc

Friday, November 30, 2001
Please note that there are two colloquia today.

3:30 PM   COLLOQUIUM           459 MSc
Statistics Candidate

4:30 PM   COLLOQUIUM           459 MSc
Professor Michael DARNELL
University of Indiana at South Bend
"Group Operations on Ordered Sets"

ABSTRACT: In many situations, the underlying (partially) ordered
set determines many properties of group operations on the set
that are compatible with the order.  For example, in many
instances, there may have to be a unique operation; the
operation may have to be be abelian; or any two operations may
produce isomorphic ordered groups.

After discussing some elementary examples, some new results
will be given on placing group operations onto a special class
of attices.

Saturday, December 1, 2001

Sunday, December 2, 2001
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

December 3-9, 2001

Monday, December 3, 2001

3:30 PM    COLLOQUIUM     459 MSc
Statistics Position Candidate

Tuesday, December 4, 2001

10:40 AM   Lukacs Lecture      400 MSc
Dr. Yasunori FUJIKOSHI, Hiroshima University
"Random Coefficient Models for Repeated Measures Data"

11:30 AM   Buildings (Groups & Geometries) Seminar
459 MSc
Dr. Curtis BENNETT and Dr. Sergey SHPECTOROV, BGSU
"Examples of Geometries and Chamber Systems"

Wednesday, December 5, 2001

Thursday, December 6, 2001

11:30 AM  Algebra Seminar     459 MSc

4:00 PM   Finance Seminar     400 MSc
Yingchun ZHOU, BGSU
SUMMARY:  This is the last finance seminar this semester.
We'll introduce options markets, including the various
types of exchange-traded options and over-the-counter
options, specifications of stock options, trading,
commissions, margins, and taxation. If you want to get a

Friday, December 7, 2001
**Please note time change for colloquium this week**

4:00 PM   COLLOQUIUM           459 MSc
Professor Joseph CIMA, Univ of North Carolina-Chapel Hill
"The Wold Decomposition for the Hardy Spaces of the Disc"
ABSTRACT:  We apply the Wold decomposition to functions in the
Hardy spaces to obtain a factorization into a product of two
functions (similar to the usual Riesz decomposition of  inner
and outer parts). We study the properties of the factors in
this factorization.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

December 10 - 16, 2001

Monday, December 10, 2001

12:30 PM   Undergraduate Committee Meeting   400 MSc

Tuesday, December 11, 2001

10:40 AM   Lukacs Lecture      400 MSc
Dr. Yasunori FUJIKOSHI, Hiroshima University
"Selection of Variables and Dimensionalities in Some
Other Multivariate Models"

11:30 AM   Buildings (Groups & Geometries) Seminar
459 MSc
Dr. Curtis BENNETT and Dr. Sergey SHPECTOROV, BGSU
"Examples of Geometries and Chamber Systems, Part 2"

3:00 PM    Meeting of Tenured Faculty     459 MSc

Wednesday, December 12, 2001

4:00-6:00 PM   President Ribeau's Holiday Open House
McFall Center Gallery

Thursday, December 13, 2001

11:30 AM  Algebra Seminar     459 MSc

1:00 PM   Analysis Seminar    447 MSc
Juan MARIN, BGSU
"The Spectral Theorem for Normal Operators, Part 2"

Friday, December 14, 2001
Last Day of Fall Semester Classes

11:30AM-1:30PM  Departmental Holiday Gathering  459 MSc

Colloquia for the 2001/2002 academic year

Fall 2001

• Aug. 31: First day of semester, no colloquium.
• Sep. 07: Dr. Jason C. Hsu, The Ohio State University.
• Sep. 14: National Day of Prayer and Remembrance, colloquium canceled.
• Sep. 21: Dr. Yo Sheena, ShinShu University, Japan.
• Sep. 28: Dr. Warren McGovern, Bowling Green State University.
• Oct. 05: Dr. Zeljko Cuckovic, University of Toledo.
• Oct. 12: Fall Break, no colloquium
• Oct. 19: Dr. Rieuwert Blok, Michigan State University.
• Oct. 26: Dr. Vladimir Ulyanov, Moscow State University.
• Nov. 02: Dr. John Holcomb, Cleveland State University.
• Nov. 09: Dr. Joan Krone, Denison University.
• Nov. 16: Dr. Jeff Wu, University of Michigan.
• Nov. 23: Thanksgiving Recess, no colloquium.
• Nov. 30: Dr. Michael Darnel, University of Indiana at South Bend.
• Dec. 07: Dr. Joseph Cima,  University of North Carolina at Chapel Hill.
• Dec. 14: Annual Office Party, no colloquium.

Spring 2002

• Jan. 18: First week of semester, no colloquium.
• Jan. 25: Dr. Mati Rubin, Ben Gurion University, Israel.
• Feb. 01: Dr. Gabor Szekely, Bowling Green State University.
• Feb. 08: Math Ed Candidate
• Feb. 15: Math Ed Candidate
• Feb. 22: Dr. Corneliu Hoffman, Bowling Green State University.
• Mar. 01: Dr. A. Puhalskii, University of Colorado at Denver.
• Mar. 08: Happy Spring Break!
• Mar. 15: Happy Spring Break!
• Mar. 22: Dr. Pam Gorkin, Buchnell University.
• Mar. 29: Dr. Ham Bozdogan, University of Tennessee.
• April 1: Dr. Michael Riotman, University of Michigan
• April 5: OSM meeting, no colloquium.
• April 12: Dr. Mir Masoom Ali, Ball State University.
• April 19: Dr. Vic Norton, Bowling Green State University.
• April 26: Dr. Mohsen Pourahmadi, University of Chicago.
• May 3: Last day of classes, no colloquium.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

January 14 - 21, 2002

Please note:  All information to be included on the
weekly calendar should be submitted to Cyndi by
NOON on the Friday preceding the next week.

Monday, January 14, 2002

FIRST DAY OF CLASSES - SPRING SEMESTER 2002

Tuesday, January 15, 2002

Wednesday, January 16, 2002

3:30 PM     Lukacs Lecture     459 MSc
Professor Hung T. NGUYEN, New Mexico State University
ABSTRACT:  This first meeting will be a preliminary meeting.
For those who cannot attend this meeting, but are interested
or gupta@bgnet.bgsu.edu .

Thursday, January 17, 2002

Friday, January 18, 2002

Saturday, January 19, 2002

Sunday, January 20, 2002

Monday, January 21, 2002

MARTIN LUTHER KING DAY - NO CLASSES - OFFICES CLOSED

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

January 21 - 27, 2002

Monday, January 21, 2002

NO CLASSES - MARTIN LUTHER KING DAY
OFFICES CLOSED

Tuesday, January 22, 2002

Wednesday, January 23, 2002

2:30 PM    Lukacs Lecture     459 MSc
Professor Hung T. Nguyen, Visiting Dist. Lukacs Prof.
New Mexico State University & Bowling Green St Univ.
"Motivations for Studying Random Sets"

3:30 PM    Algebra Seminar     459 MSc

Thursday, January 24, 2002

Friday, January 25, 2002

3:30 PM   COLLOQUIUM           459 MSc
Mati Rubin, Ben Gurion University, Israel
"The relation between topological spaces and their
auto-homeomorphism groups"

Abstract:

The talk concerns the following general question. Suppose that X
and Y are topological spaces, and that their auto-homeomorphism
groups H(X) and H(Y) are isomorphic as groups.  Does it follow
that X and Y are homeomorphic?  Moreover, suppose that F : H(X)
-> H(Y) is such an isomorphism.  Is there a homeomorphism T
between X and Y which induces F? That is, F(g) = T o g o T^{-1}
for every g in H(X).  ( T^{-1} denotes the inverse of T).

We give a positive answer to this question for various classes
of topological spaces. For example, the above is true when X and
Y are open sets in a normed vector space.

Instead of considering H(X) one can consider various subgroups
of H(X).  For example, for a metric space X let LIP(X) be the
subgroup of H(X) consisting of all homeomorphisms g such that g
and its inverse are Lipschitz functions.

The desired result in this setting is the following statement.
If F is an isomorphism between the groups LIP(X) and LIP(Y),
then there is a homeomorphism T between X and Y such that T and
its inverse are Lipschitz functions, and F(g) = T o g o T^{-1}
for every g in LIP(X).  Such a theorem is true when X,Y are open
subsets of R^n whose boundary is well behaved''.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

January 28 - February 3, 2002

Monday, January 28, 2002

Tuesday, January 29, 2002

9:30 AM    Undergraduate Committee Meeting   400 MSc

1:00 PM    Graduate Committee Meeting     400 MSc
AGENDA:  Discuss MAT degree requirements.

2:30 PM    Personnel Committee Meeting

Wednesday, January 30, 2002

2:30 PM    Lukacs Lecture     459 MSc
Professor Hung T. Nguyen, Visiting Dist. Lukacs Prof.
New Mexico State University & Bowling Green St Univ.
"Random Sets:  The Finite Case"

3:30 PM    Algebra Seminar     459 MSc

Thursday, January 31, 2002

11:30 AM   Buildings (Groups and Geometries) Seminar
400 MSc
ABSTRACT:  Organizational meeting and introductory topics.

Friday, February 1, 2002

12:00 PM  Calendar Info due to Cyndi for next week's calendar

2:30 PM    Statistics Program Committee Meeting
400 MSc

3:30 PM   COLLOQUIUM           459 MSc
Dr. Gabor SZEKELY
Bowling Green State University
"Magical Half Coins"
ABSTRACT: Half coins are 'mystical random variables' in the
sense that they take every other natural number with negative
probabilities. The sum of two independent half coins is a
complete coin (Bernoulli random variable).  Since the relation
of negative probabilities to relative frequencies is not obvious
at all, the goal of this talk is to clarify this relation and to
show the importance of 'mystical random variables' in
statistics, finance, classical probability theory, analysis and
particle physics.

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

February 4 - 10, 2002

Monday, February 4, 2002

3:30 PM    COLLOQUIUM     459 MSC
Analysis Candidate

Tuesday, February 5, 2002

9:30 AM    Undergraduate Committee Meeting   400 MSc

12:00 PM   Analysis Seminar   400 MSc

1:00 PM    Graduate Committee Meeting     400 MSc

Wednesday, February 6, 2002

1:30 PM     COLLOQUIUM     459 MSc
Math Ed Candidate

2:30 PM    Lukacs Lecture     459 MSc
Professor Hung T. Nguyen, Visiting Dist. Lukacs Prof.
New Mexico State University & Bowling Green St Univ.
"Random Sets:  The Finite Case" (Continued)

3:30 PM    Algebra Seminar     459 MSc

Thursday, February 7, 2002

11:30 AM   Buildings (Groups and Geometries) Seminar
400 MSc
Dr. Sergey SHPECTOROV, BGSU
"Intro to Chamber Systems and Coxeter Groups"

2:30 PM    Statistics Program Committee Meeting
400 MSc

3:30 PM    COLLOQUIUM     459 MSc
Analysis Candidate

Friday, February 8, 2002

2:30 PM    Probability/Statistics Group Meeting
400 MSc

3:30 PM   COLLOQUIUM      459 MSc
Math Ed Candidate

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

February 11 - 17, 2002

Monday, February 11, 2002

Tuesday, February 12, 2002

2:30 PM    COLLOQUIUM     459 MSc
Analysis Candidate

Wednesday, February 13, 2002

2:30 PM    Lukacs Lecture     459 MSc
Professor Hung T. Nguyen, Visiting Dist. Lukacs Prof.
New Mexico State University & Bowling Green St Univ.
"Random Sets on Locally Compact Spaces"

3:30 PM    Algebra Seminar     459 MSc
Speaker/Topic to be announced

Thursday, February 14, 2002

11:30 AM   Buildings (Groups and Geometries) Seminar
400 MSc

2:30 PM    Statistics Program Committee Meeting
400 MSc

2:30 PM    COLLOQUIUM     459 MSc
Analysis Candidate

Friday, February 15, 2002

2:30 PM    Probability/Statistics Group Meeting
400 MSc

3:30 PM   COLLOQUIUM           459 MSc
Math Ed Candidate

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

February 18 - 24, 2002

Monday, February 18, 2002

10:30 AM - 2:30 PM   President's Day Open House  400 MSc

2:30 PM    Dissertation Defense     459 MSc
Maria HONG
"A New Rotation Invariant Goodness-of-Fit Test"

Tuesday, February 19, 2002

1:00 PM    Graduate Committee Meeting     400 MSc

Wednesday, February 20, 2002

2:30 PM    Lukacs Lecture     459 MSc
Professor Hung T. Nguyen, Visiting Dist. Lukacs Prof.
New Mexico State University & Bowling Green St Univ.
"Random Set Models and Idempotent Probability"

2:30 PM    Algebra Seminar    400 MSc
Ramiro LAFUENTE-RODRIGUEZ, BGSU
"o-Automorphisms of o-Groups of Finite Rank"
ABSTRACT: An group G is divisible if for every g in G and
every natural number n, there exists x in G such that
$x^{n}=g$. The classical unanswered question in the theory
of totally ordered groups (o-groups) is whether or not
every o-group can be embedded in a divisible
o-group. W.C.Holland proved in 1961 the existence of an
example of an o-group of archimedean rank 3 that is not
embeddable in a divisible o-group of achimedean rank
3. This example uses the non-divisible o-group o-Aut(G),
where G=RxR (ordered lexicographically). We will discuss a
more general case, when the o-group G is an o-extension of
R by R, and prove that o-Aut(G) is divisible when the
extension is not central.  We will also discuss the case
when G is of rank greater than 2, and prove the following

Theorem: Let G be the semidirect product $R^{n}\times$,
where  is an infinite cyclic groups and $a$ induces an
action on $R^{n}$ with no square root. G can be embedded in
an o-group of archimedean rank at most 2n where $a$ has a
square root.

3:30 PM    COLLOQUIUM     459 MSc
Math Ed Candidate

Thursday, Feburary 21, 2002

11:30 AM   Buildings (Groups and Geometries) Seminar
400 MSc
"Coexter Groups"

2:30 PM    Statistics Program Committee Meeting
400 MSc

Friday, February 22, 2002

2:30 PM    Statistics Committee Meeting
400 MSc

3:30 PM   COLLOQUIUM           459 MSc
Dr. Corneliu HOFFMAN, BGSU
"All You Wanted to Know About Algebraic Geometry

ABSTRACT: This will be a informal talk to promote a topic
course which will hopefully run in the Fall of 2002.
Algebraic Geometry is the study of solutions to polynomial
equations. I will discuss a few examples ranging from
"Fermat's Last Theorem" to application to Coding Theory.  A
good portion of the talk will be accessible to everybody
and most of it will only involve background at the level of
Math 403.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

February 25 - March 3, 2002

Monday, February 25, 2002

Tuesday, February 26, 2002

9:30 AM    Undergraduate Committee Meeting   400 MSc

12:00 PM   Analysis Seminar   447 MSc
Juan MARIN, BGSU
"Normal Operators"

1:00 PM    Graduate Committee Meeting     400 MSc

6:30 PM    Kappa Mu Epsilon Presentation     459 MSc
Dr. Curtis BENNETT, BGSU
"Permutations Do's and Don'ts"
ABSTRACT:  Rubik's cubes and puzzles will be discussed.

Wednesday, February 27, 2002

2:30 PM    Lukacs Lecture     459 MSc
Professor Hung T. Nguyen, Visiting Dist. Lukacs Prof.
New Mexico State University & Bowling Green St Univ.
"Integration and Derivatives with Respect to Capacities"

3:30 PM    Algebra Seminar     459 MSc
Ramiro LAFUENTE-RODRIGUEZ, BGSU
"o-Automorphisms of o-Groups of Finite Rank - Part 2"
ABSTRACT: An group G is divisible if for every g in G
and every natural number n, there exists x in G such
that xn=g. The classical unanswered question in
the theory of totally ordered groups (o-groups) is
whether or not every o-group can be embedded in a
divisible o-group. W. C. Holland proved in 1961 the
existence of an example of an o-group of archimedean
rank 3 that is not embeddable in a divisible o-group
of achimedean rank 3. This example uses the
non-divisible o-group o-Aut(G), where G=RxR (ordered
lexicographically). We will discuss a more general
case, when the o-group G is an o-extension of R by R,
and prove that o-Aut(G) is divisible when the
extension is not central.  We will also discuss the
case when G is of rank greater than 2, and prove the
following

Theorem: Let G be the semidirect product Rn x a,
where a is an infinite cyclic groups and a
induces an action on Rn with no square root. G
can be embedded in an o-group of archimedean rank at
most 2n where a has a square root.

Thursday, February 28, 2002

11:30 AM   Buildings (Groups and Geometries) Seminar
400 MSc
Jon DUNLAP, BGSU  and  Dr. Corneliu HOFFMAN, BGSU
"One More Example of a Chamber System"  and
"Reflections and Walls in Coxeter Systems"

Friday, March 1, 2002

2:30 PM    Probability/Statistics Group Meeting
400 MSc

3:30 PM   COLLOQUIUM           459 MSc
Dr. Anatolii PUHALSKII, University of Colorado
"Large Deviation Convergence"

ABSTRACT: The talk gives an overview of the theory of
"large deviation convergence" of probability measures.
The definition is motivated by that of the large
deviation principle and the two concepts are actually
equivalent, the difference being that in large
deviation convergence one views the limit object as an
idempotent (or "maxitive") analogue of a probability
measure so that large deviation convergence itself can
be viewed as an analogue of weak convergence.  The
central result of the theory is an analogue of
Prohorov's tightness theorem, which gives a criterion
for large deviation relative compactness. We outline a
proof of the result that relies on a ''Riesz''
representation theorem" for maxitive functionals.  We
next discuss in some detail weak topology on the space
of idempotent probability measures. Besides having
properties similar to those of weak convergence of
probability measures, it is also instrumental in
deriving large deviation convergence results.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

March 4 - 10, 2002

Monday, March 4, 2002

Tuesday, March 5, 2002

9:30 AM    Undergraduate Committee Meeting   400 MSc

12:00 PM   Analysis Seminar   447 MSc
Juan MARIN, BGSU
"The Double Commutant Theorem"

Wednesday,March 6, 2002

2:30 PM    Lukacs Lecture     459 MSc
Professor Hung T. Nguyen, Visiting Dist. Lukacs Prof.
New Mexico State University & Bowling Green St Univ.
"Random Sets: Entropy and Optimization"

Thursday, March 7, 2002

11:30 AM   Buildings (Groups and Geometries) Seminar
400 MSc
Dr. Corneliu HOFFMAN, BGSU
"Words and Galleries in Coxeter Systems"

Friday, March 8, 2002

2:30 PM    Probability/Statistics Group Meeting
400 MSc

Saturday, March 9, 2002

SPRING BREAK OFFICIALLY BEGINS Monday, March 11, 2002
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

March 25 - 31, 2002

Monday, March 25, 2002

Tuesday, March 26, 2002

9:30 AM    Undergraduate Committee Meeting   400 MSc

12:00 PM   Analysis Seminar   447 MSc
Bill Rolli, BGSU
"Construction of Frames via Operators"

1:00 PM    Graduate Committee Meeting     400 MSc
AGENDA:  Discuss a proposal for a PhD in Statistics.

Wednesday, March 27, 2002

3:30 PM    Algebra Seminar     459 MSc

Thursday, March 28, 2002

11:30 AM   Buildings (Groups and Geometries) Seminar
400 MSc
Dr. Corneliu HOFFMAN, BGSU
"The Definition of a Building"

Friday, March 29, 2002

3:30 PM   COLLOQUIUM           459 MSc
Professor Hamparsum BOZDOGAN
University of Tennessee
"Misspecification Resistant Model Selection Using
Information Complexity"
ABSTRACT:  Statistical models are typically merely
approximations to reality. So the wrong model is, more
often than not, fit to the observed data. This is a troubling
observation in statistical modeling and model selection. In
the literature not much attention has been paid to develop
new statistical modeling techniques, which are resistant to
misspecification of the true underlying probabilistic form of
the fitted models. When the specification of the model is
incorrect, inconsistent parameter estimates can result and/or
statistical inferences can be suspect. Further, specification
errors can be important sources of forecasting errors. For
these reasons, it is of considerable importance to have a
reliable means of fitting and choosing models in the presence
of specification errors.
This paper uses information complexity in multivariate
regression analysis to develop a new statistical modeling
technology that we call misspecification resistant model
selection. Our approach integrates novel statistical modeling
procedures based on a robust form of the information-theoretic
measure of complexity (ICOMP) criterion of Bozdogan (1988,
1990, 1994, 2000) that allows for non-Gaussian errors. It can
be used in conjunction with a general combinatorial approach
for selecting the best predictors in small-scale settings. In
the increasingly important case of high dimensional data sets,
a genetic algorithm (GA) can be used to select the optimal
subset of predictors.
Several numerical examples are considered to demonstrate
the efficacy of our approach on both real data sets as well as
Monte Carlo experiments under different specification errors for
the multivariate regression model. Other potential applications
of this new technique will be discussed in several
cross-disciplinary areas such as multivariate time series for
forecasting, discriminant analysis, mixture-model cluster analysis,
and structural equation modeling, to mention a few.
Key words: Misspecification Resistant Model Selection,
Multivariate Regression, Information Complexity.

References
Bozdogan, H. (1988). ICOMP: A new model selection criterion. In
Classification and Related Methods
of Data Analysis, Hans H. Bock (Ed.), North-Holland, Amsterdam April, 599-608.

Bozdogan, H. (1990). On the information-based measure of covariance
complexity and its application to
the evaluation of multivariate linear models. Communications in
Statistics (Theory and Methods) 19 (1),
221-278.

Bozdogan, H.(1994). Mixture-model cluster analysis using a new
informational complexity and model
selection criteria. In Multivariate Statistical Modeling, 2,
Proceedings of the First /Japan Conference on
the Frontiers of Statistical Modeling: An Informational Approach, H.
Publishers, the Netherlands, 69-113.

Bozdogan, H. (2000). Akaike's information criterion and recent
developments in informational complexity.
Invited paper in the Special Issue of Journal of Mathematical
Psychology on Methods for Model Selection,
M. W. Brown, M., In J. Myung, M. Forster (Eds.), 62-91.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 1 - 7, 2002

Monday, April 1, 2002

3:30 PM   COLLOQUIUM           459 MSc
Dr. Michael ROITMAN, University of Michigan
"What is a vertex algebra?
ABSTRACT:  It has been observed frequently that a link
between apparently unrelated theories ignites a boost of
beautiful mathematical development. This is certainly the
case for the theory of vertex algebras. They have appeared
almost in the same time in relation to the following four
areas: String theory, modular forms, finite groups and
representations of Lie algebras. I will give a rigorous
definition of vertex algebras and discuss some aspects of
the structure theory, representation theory and connections
with other areas of mathematics.

Tuesday, April 2, 2002

9:30 AM    Undergraduate Committee Meeting   400 MSc

12:00 PM   Analysis Seminar   447 MSc
Lynette BOOS, BGSU
"The Dirichlet Problem, Part 1"

Wednesday, April 3, 2002

2:30 PM    Lukacs Lecture     459 MSc
Professor Hung T. Nguyen, Visiting Dist. Lukacs Prof.
New Mexico State University & Bowling Green St Univ.
"Maximum Likelihood Estimation on Random Sets in
Change-Point Hazard Rate Models"

3:30 PM    Algebra Seminar     459 MSc
Dr. Corneliu HOFFMAN, BGSU
"Representations of Chevalley Groups II"

Thursday, April 4, 2002

11:30 AM   Buildings (Groups and Geometries) Seminar
400 MSc
Dr. Corneliu HOFFMAN, BGSU
"The Definition of a Building" (continued)

Friday, April 5, 2002

12:00 PM - 8:45 PM   Ohio Section MAA Meeting
Xavier University, Cincinnati, Ohio

2:30 PM    Probability/Statistics Group Meeting
400 MSc

Saturday, April 6, 2002

8:00 AM - 1:00 PM     Ohio Section MAA Meeting
Xavier University, Cincinnati, Ohio

Sunday, April 7, 2002

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 8 - 14, 2002

Monday, April 8, 2002

3:30 PM    Lukacs Lecture     459 MSc
Dr. Peter BICKEL, University of California-Berkeley
"The Nonparametric Point of View on Estimation of
Parameters Examples, Criteria

Tuesday, April 9, 2002

9:30 AM    Undergraduate Committee Meeting   400 MSc

12:00 PM   Analysis Seminar   447 MSc
Lynette BOOS, BGSU
"The Dirichlet Problem, Part 2"

3:30 PM    Lukacs Lecture     459 MSc
Dr. Peter BICKEL, University of California-Berkeley
"Geometry of Inference, Information Bounds, Tangent
Spaces, Efficient Score and Influence Functions,
Examples"

Wednesday, April 10, 2002

2:30 PM    Lukacs Lecture     459 MSc
Dr. Peter BICKEL, University of California-Berkeley
"Estimate Construction, Methods and Connections with
Empirical Process Theory"

3:30 PM    Algebra Seminar     459 MSc

Thursday, April 11, 2002

11:30 AM   Buildings (Groups and Geometries) Seminar
400 MSc
Michelle KNOX, BGSU
"Projective Spaces and Projective Geometries"

2:30 PM    Lukacs Lecture     459 MSc
Dr. Peter BICKEL, University of California-Berkeley
"Confidence Regions, Testing, and Some Open Questions"

Friday, April 12, 2002

2:30 PM    Probability/Statistics Group Meeting
400 MSc

3:30 PM   COLLOQUIUM           459 MSc
Dr. Mir Masoom Ali, Dist. Univ. Prof., Ball State Univ.
"Inference Using Selected Order Statistics in
Location-Scale Models"
ABSTRACT:  One of the major earliest works in statistical
inference using selected order statistics was done by Mosteller
(1946).  In this pioneering work he advocated estimation of
location/scale parameters using a few optimally selected
order statistics, particularly for large sample size.  These
procedures were developed as a compromise between lack of
efficiency and quickness and ease of computation.  In
general, it has been observed that for most distributions
efficiencies over 90% are achieved with seven or even fewer
optimally chosen observations.

These estimates are based on linear combinations of the
selected order statistics, which are Best Linear Unbiased
Estimates.  Lloyd (1952) introduced BLUE's to construct linear
estimates. Since the coefficients of these linear combinations
are functions of means and covariances of order statistics, the
estimates can be numerically computed for small sample size.
Ogawa (1951) considered the problem of estimating location/scale
parameters for large samples and introduced the
Asymptotically Best Linear Unbiased Estimates.  Sarhan and
Greenberg (1962) gave a comprehensive account of the
estimation problem using a few selected order statistics
which was done up until that point in time. In this talk, I will
review some of the works we had done in this area for estimation,
testing of hypotheses and goodness-of-fit tests.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 15 - 21, 2002

Monday, April 15, 2002

Tuesday, April 16, 2002

9:30 AM    Undergraduate Committee Meeting   400 MSc

12:00 PM   Analysis Seminar   447 MSc
Dr. Neal L. CAROTHERS, BGSU
"Choquet's Theorem"
ABSTRACT:  A classical theorem, due to Minkowski,
states that each point in a compact, convex subset
of a finite dimensional normed space can be written
as a convex combination of the extreme points of
the convex set.  That is, each point is a "weighted
average" of the extreme points.  We will discuss a
generalization, due to Choquet, which replaces this
discrete weighted average by an integral average
(with respect to some probability measure).  This
is relatively high end stuff with 766 as prerequisite.

3:30 PM    Department Meeting (Tenure/Tenure-Track)
459 MSc

Wednesday, April 17, 2002

2:30 PM    Lukacs Lecture     459 MSc
Professor Hung T. Nguyen, Visiting Dist. Lukacs Prof.
New Mexico State University & Bowling Green St Univ.
"Probabilistic Reasoning and Computational Information"

3:30 PM    Algebra Seminar     459 MSc

Thursday, April 18, 2002

11:30 AM   Buildings (Groups and Geometries) Seminar
400 MSc

Friday, April 19, 2002

2:30 PM    Probability/Statistics Group Meeting
400 MSc

3:30 PM   COLLOQUIUM           459 MSc
Dr. Victor T. NORTON, Jr., BGSU
"The Geometry of Risk and Reward:  An Application of
Euclidean Linear Algebra"
ABSTRACT:  We adopt a geometric view of Markowitz's and
Sharpe's mean-variance theory of portfolio choice. Our model
posits that expected reward is a linear function of risk. This
axiom is generally true after singular value reduction of data.
The Sharpe-optimal long portfolio leads to an investment
strategy that appears to have considerable merit.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 22-28, 2002

Monday, April 22, 2002

6:30 PM   American Statistical Association of NW Ohio
114 BA
Angel M. DeGUZMAN, Abbott Laboratories, Chicago, IL
"Experience of a Statistician in Clinical Research:
Statistics and Beyond (What They Didn't Teach You in
School"
SUMMARY: Arthur Yeh and Jim Albert are working on
resurrecting the Northwest Ohio chapter of the American
Statisitical Association (ASA).  They have invited one of
the graduates of the MS in applied statistics program to
speak about the difference between what you learn in school
and what you need on the job.  The talk will be followed by
a meeting to elect officers and such.  The talk should last
about 45 minutes.  The talk is in room 114 of the Business
Administration building.  There will be pizza after the talk
as well.

Tuesday, April 23, 2002

9:30 AM    Undergraduate Committee Meeting   400 MSc

12:00 PM   Analysis Seminar   447 MSc
Dr. Neal L. CAROTHERS, BGSU
"Choquet's Theorem, Part II"

1:00 PM    Graduate Committee Meeting     400 MSc
AGENDA:  Comprehensive Exam Results and proposal for MAT
degree requirements.

Wednesday, April 24, 2002

2:30 PM    Lukacs Lecture     459 MSc
Professor Hung T. Nguyen, Visiting Dist. Lukacs Prof.
New Mexico State University & Bowling Green St Univ.
"Statistical Deduction from Conditional Knowledge"

3:30 PM    Algebra Seminar     459 MSc
Dr. Corneliu HOFFMAN, BGSU
" TBA "

Thursday, April 25, 2002

11:30 AM   Buildings (Groups and Geometries) Seminar
400 MSc
Jon DUNLAP, BGSU
"The Simple-Connectedness of a Building"

Friday, April 26, 2002

2:30 PM    Probability/Statistics Group Meeting
400 MSc

3:30 PM   COLLOQUIUM           459 MSc
Dr. Mohsen POURAHMADI, Northern Illinois University and
The University of Chicago
"GENERALIZED LINEAR MODELS FOR COVARIANCE OF
LONGITUDINAL DATA"
ABSTRACT:  We discuss a data analytic procedure for specifying
models for a covariance matrix in the spirit of the generalized
linear models (GLM) which are helpful in (i) reducing the high
dimensionality, (ii) providing unconstrained parameterization
and (iii) increasing efficiency of the inferences about the
regression (mean) parameters.  Motivated by the fundamental
roles of the correlograms in identifying parsimonious models
for time series, we introduce analogues and generalizations of
these plots for nonstationary repeated measures data.  Their
roles in detecting heterogeneity, nonstationarity and correlation
of the data and identifying parsimonious models for the covariance
matrix will be illustrated using a real dataset.  Various
factorizations of the covariance matrix, particularly the Cholesky
decomposition of its inverse, provide the necessary ingredients for
the procedure and its extensions to mixed, latent an hierarchical
modeling of correlated data.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 29 - May 5, 2002

Monday, April 29, 2002

Tuesday, April 30, 2002

9:30 AM    Undergraduate Committee Meeting   400 MSc

12:00 PM   Analysis Seminar   447 MSc
Rebecca SANDERS, BGSU
"Weighted Shifts and Supercyclicity"

Wednesday, May 1, 2002

2:30 PM    Lukacs Lecture     459 MSc
Professor Hung T. Nguyen, Visiting Dist. Lukacs Prof.
New Mexico State University & Bowling Green St Univ.
"Soft Computing and Statistics"

3:30 PM    Algebra Seminar     459 MSc
Dr. Warren McGOVERN, BGSU
"TBA"

Thursday, May 2, 2002

11:30 AM   Buildings (Groups and Geometries) Seminar
**447 MSc** **Note location change**
Jon DUNLAP, BGSU
"The Simple-Connectedness of a Building, Part 2"

Friday, May 3, 2002

2:30 PM    Probability/Statistics Group Meeting
400 MSc

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

August 26 - September 2, 2002

Monday, August 26, 2002

FIRST DAY OF CLASSES - FALL SEMESTER 2002

Tuesday, August 27, 2002

Wednesday August 28, 2002

Thursday, August 29, 2002

11:30 AM   Analysis Seminar     400 MSc (Next week in 459 MSc)

Friday, August 30, 2002

10:30 AM  Groups and Geometries/Buildings Seminar   400 MSc

Groups and Geometries is a specialized area within abstract
algebra.  Here, we study the structures of groups via their
actions (say, rotations or reflections) on objects found in
spaces of any dimension (though we primarily consider finite
dimension here).

3:30  "Colloquium"  - Room 201 in the Bowen-Thompson Student Union

Make new acquaintances and renew old ones and find out some
of the department's accomplishments the past few months and
what will be happening in the months to come.

Saturday, August 31, 2002

Sunday, September 1, 2002

Monday, September 2, 2002

LABOR DAY - NO CLASSES - OFFICES CLOSED
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

September 2 - 8, 2002

Monday, September 2, 2002

LABOR DAY -- NO CLASSES -- OFFICES CLOSED

Tuesday, September 3, 2002

Wednesday, September 4, 2002

9:30 AM    Probability/Statistics Group Meeting   400 MSc

12:30 PM   Algebra Seminar                  400 MSc

Thursday, September 5, 2002

1:30 AM    Analysis Seminar                 459 MSc
Dr. Kit C. CHAN, BGSU
"Rotations of Hypercyclic Operators
(by Leon and Muller, 2002):  Part 1"

Friday, September 6, 2002

12:00 PM   Campus-Wide Welcome Back Picnic
University Hall Lawn  (free food & entertainment)

12:30 PM   Buildings (Groups and Geometries) Seminar
400 MSc
Jon DUNLAP, BGSU
"Introductions, Vocabulary, and Basic Facts, Part 2"

3:30 PM    COLLOQUIUM                       459 MSc
(information will be posted in front window of office)

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

September 9 - 15, 2002

Monday, September 9, 2002

Tuesday, September 10, 2002

9:30 AM    Graduate Committee Meeting   400 MSc
Agenda:  Scientific Computation courses

12:30 PM   Graduate Committee Meeting   400 MSc
Agenda:  Mathematics Education on-line courses

9:15 PM    Actuarial Science Society Meeting   459 MSc

Wednesday, September 11, 2002

8:00 AM - 9:30 AM   Sept. 11--A Day of Remembrance
A Moment of Silence and Mozart's Requiem
The Lenhart Grand Ballroom doors will open at 8 a.m.  At 8:35
a.m., a Color Guard will be presented by Air Force and Army
ROTC students, followed by bells tolling.  At 8:47 a.m., a moment
of silence will be observed and then a performance of Mozart's
Requiem.  Mozart's Requiem will be performed worldwide beginning
at the International Date Line in a choral commemoration of those
lost and those who aided others on Sept. 11, 2001.

12:30 PM   Algebra Seminar   400 MSc
Dr. Warren Wm. McGOVERN, BGSU
"TBA"

9:00 PM    Candlelight Vigil
Join the entire Bowling Green Community in a tribute to
those whose lives were lost and affected by the tragic event of
a year ago.  The vigil will begin with students and community
members marching from the west side of campus eastward ending in
the Alumni Mall area between Harshman and Kreischer.

Thursday, September 12, 2002

11:30 AM   Analysis Seminar   459 MSc
Dr. Kit C. CHAN, BGSU
"Rotations of Hypercyclic Operators
(by Leon and Muller, 2002):  Part 2"

Friday, September 13, 2002

9:30 AM     Probability/Statistics Seminar   459 MSc
Dr. Arjun K. GUPTA, BGSU
"Classification of Multiple Measurements"

12:00 PM   Calendar Information Due to Cyndi
for next week's listings

12:30 PM   Buildings (Groups & Geometries) Seminar
400 MSc
Jon DUNLAP, BGSU
"Vocabulary and Basic Facts, Part 3"

3:30 PM    COLLOQUIUM   459 MSc
Dr. Craig L. ZIRBEL, BGSU
"Image Modeling and Restoration"
ABSTRACT:  Digitized images are commonplace today, especially
on computers and television.  The talk will begin with a basic
description of digitized images in black and white, grayscale,
and color.  One may distinguish between a "true" or "ideal"
image and the image one actually observes, which may be corrupted
by communication noise, blurring, graininess, or more complicated
distortion such as coffee stains or imperfect rendering.  Given
an observed image, can we restore it to be closer to its ideal
version?  To do this, one needs to understand the nature of the
corruption mechanism, usually described probabilistically, and
one needs mathematical criteria which help to distinguish between
ideal and corrupted images, often done by placing a prior
distribution on the space of all digitized images.  Then one uses
an algorithm such as simulated annealing to attempt to restore the
image to its ideal state.
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

September 16-22, 2002

Monday, September 16, 2002

Tuesday, September 17, 2002

9:00A-1:00P    PhD Prelims   400 MSc

11:00A-3:00P   Merchant's Fair   Lenhart Grand Ballroom, BTSU

Wednesday, September 18, 2002

12:30 PM   Algebra Seminar   400 MSc

Thursday, September 19, 2002

9:00A-1:00P    PhD Prelims   400 MSc

11:30 AM   Analysis Seminar   459 MSc

Friday, September 20, 2002

9:30 AM    Probability/Statistics Seminar   459 MSc
Dr. James ALBERT, BGSU
"Estimating Career Trajectories"

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

12:30 PM   Buildings(Groups&Geometries) Seminar   400 MSc
Jon DUNLAP, BGSU
"Vocabulary and Basic Facts, Part 4"

3:30 PM    COLLOQUIUM   459 MSc
Dr. Sergey SHPECTOROV, BGSU
"TBA"
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

September 23-29, 2002

Monday, September 23, 2002

Tuesday, September 24, 2002

12:00 PM   Graduate Committee Meeting     400 MSc
AGENDA:  1.  Preliminary Exam results
2.  Summer Graduate Topics Course proposals

3:30 PM    Meeting of Full Professors   459 MSc

Wednesday, September 25, 2002

12:30 PM   Algebra Seminar                  400 MSc
Dr. Corneliu HOFFMAN, BGSU

Thursday, September 26, 2002

11:30 AM   Analysis Seminar                 459 MSc
Dr. Kit C. CHAN, BGSU
"Rotations of Hypercyclic Operators (by Leon and
Muller, 2002):  Part 4"

Friday, September 27, 2002

9:30 AM    Probability/Statistics Seminar   459 MSc
Dr. Gabor J. SZEKELY, BGSU
"Non-Estimable Career Trajectories"

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

12:30 PM   Buildings (Groups & Geometries) Seminar   400 MSc
Dr. Sergey SHPECTOROV, BGSU
"Disconnected Buildings"

3:30 PM    COLLOQUIUM                         459 MSc
Dr. Warren McGOVERN, BGSU
"Logic and Set Theory"
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

September 30 - October 6, 2002

Monday, September 30, 2002

Tuesday, October 1, 2002

Wednesday, October 2, 2002

Graduate Applicant, Maxine Guzman, will be visiting the
department/campus today.

12:30 PM   Algebra Seminar                  400 MSc
Dr. Corneliu HOFFMAN, BGSU
"More on Local Rings...the p-adics, Part 2"

Thursday, October 3, 2002

1:30 AM    Analysis Seminar                 459 MSc
Dr. Juan P. BES, BGSU
"Approximation by similarity orbits

Friday, October 4, 2002

9:30 AM    Probability/Statistics Seminar   459 MSc
Dr. Truc T. NGUYEN, BGSU
"Goodness-of-fit tests for multivariate normal
distributions"

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

12:30 PM   Buildings (Groups & Geometries) Seminar   400 MSc
Dr. Sergey SHPECTOROV, BGSU
"Disconnected Opposite Chamber Systems, Part 2"

3:30 PM    COLLOQUIUM                         459 MSc
Dr. Corneliu HOFFMAN, BGSU
"Permutation Groups"
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

October 7 - October 11, 2002

Monday, October 7, 2002

Tuesday, October 8, 2002

Wednesday, October 9, 2002

12:30 PM   Algebra Seminar     400 MSc
Dr. W. Charles HOLLAND, BGSU
"Wreath Products"

Thursday, October 10, 2002

FALL BREAK BEGINS - NO CLASSES - OFFICE OPEN

Friday, October 11, 2002

FALL BREAK CONTINUES - NO CLASSES - OFFICE OPEN

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

October 14-20, 2002

Monday, October 14, 2002

Tuesday, October 15, 2002

Wednesday, October 16, 2002

12:30 PM   Algebra Seminar     400 MSc
Dr. W. Charles HOLLAND, BGSU
"Wreath Products, Part 2"

Thursday, October 17, 2002

11:30 AM   Analysis Seminar     459 MSc
Rebecca SANDERS, BGSU
"Weakly Hypercyclic Operators"

1:00PM-5:00PM   Technology Fair     101A&B OLSC
The third annual BGSU Technology Fair will be held Oct. 17,
from 1-5 p.m. in 101 Olscamp A & B. Vendors both from on and
off campus will be displaying various forms of technology
including: Apple, Dell, Dacor, Staples, Life Formations,
Bio Power, NISDM, CTLT and many, many more.
Several area high school technology students as well as the
University, the City of Bowling Green, and Northwest Ohio
communities are invited to this event. Free raffle tickets will
be available for all who attend, and drawings will be held for
technology-oriented door prizes. "Break out sessions" showcasing
various technologies will be presented throughout the afternoon.
Free refreshments will also be available at the Tech Fair.

Friday, October 18, 2002

9:30 AM    Probability/Statistics Seminar   459 MSc
Dr. Hanfeng CHEN, BGSU
"Mapping for Quantitative Trait Loci: A Central
Topic in Statistical Genetics"

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

12:30 PM   Buildings(Groups&Geometries) Seminar   400 MSc
Jonathan DUNLAP, BGSU
"Finishing Muhlherr's Theorem"

3:30 PM    COLLOQUIUM     459 MSc
Dr. Diem M. NGUYEN, BGSU
"The Action Code: Macromedia Flash MX and the Dynamic
Online Mathematics Courses"
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

October 21-27, 2002

Monday, October 21, 2002

Tuesday, October 22, 2002

Wednesday, October 23, 2002

9:00 AM    On campus visit by Ryan O'Grady,

12:30 PM   Algebra Seminar                  400 MSc
Prof. John L. HAYDEN, BGSU

Thursday, October 24, 2002

11:30 AM   Analysis Seminar                 459 MSc
Rebecca SANDERS, BGSU
"Weakly Hypercyclic Operators, Part II"

Friday, October 25, 2002

###########
Fall MAA Ohio Section Meeting (joint with OhioMATYC)
held at Kent State University, Trumbull Campus
see:  www.maa.org/Ohio  for schedule details
###########

********
2002 OHIO STATISTICS CONFERENCE - CAREERS DAY IN STATISTICS
(co-hosted by Math & Stat and ASOR Departments)
BOWEN-THOMPSON STUDENT UNION, BOWLING GREEN STATE UNIVERSITY

8:30 - 9:15 a.m.:       Registration
(all activities are held in Student Union Room 201A)

9:15 - 9:30 a.m.:        Opening Remarks

9:30 - 10:45 a.m.:      Statistical Education in Colleges and
Universities, Dr. Bob Hogg

10:45 - 11:15 a.m.:     Break

11:15 - 12:30 p.m.:     Statistics in the Corporate World-What I Wish
I Had Known 50 Years Ago!, Dr. Gerry Hahn

12:30 - 1:30 p.m.:      Lunch

1:30 - 2:45 p.m.:       Statistical Applications and Career
Opportunities in Health Care Industry, Dr. Buderer

2:45 - 3:00 p.m.:       Break

3:00 - 3:30 p.m.:       ASA Power Point presentation on Careers in Statistics

3:30 - 5:00 p.m.:       Panel discussion on "The Role of
Statisticians: The past, the present and the future"

5:30 p.m.               Pizza Party for Alumni, Students, Faculty, and Staff
to attend)
********

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

12:30 PM   Buildings(Groups&Geometries) Seminar   400 MSc
Jon DUNLAP, BGSU
"Muhlherr's Theorem, Part II"

NO Prob/Stat Seminar or COLLOQUIUM due to the
Ohio Statistics Conference (see schedule above)

Saturday, October 26, 2002

Fall MAA Ohio Section Meeting continues
at Kent State University

Be sure you have set your clocks BACK 1 hour before going to bed
Saturday night!

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

October 28 - November 3, 2002

Monday, October 28, 2002

9:00 AM   Prospective Graduate Students (Ariful Islam & Unsun Chang)
Visiting from Ball State University

9:30 AM   Robert LATTA, Candidate for Ohio House of Representatives
Will address funding for higher education at BGSU   316 BTSU

The Committee on Professional Affairs of the Bowling Green State
University Faculty Senate has invited candidates for the Ohio House
of Representatives from the districts closest to BGSU an opportunity
to address the issues pertaining to higher education.

This Monday we will be hosting Robert Latta, who is running for
election to the seat for House District #4, the one that includes
Bowling Green.  He will be appearing at a question-and-answer session
in Union Room 316 on Monday, October 28 at 9:30 AM.

Tuesday, October 29, 2002

Wednesday, October 30, 2002

12:30 PM   Algebra Seminar                  400 MSc
Prof. John L. HAYDEN, BGSU

Thursday, October 31, 2002

11:30 AM   Analysis Seminar                 459 MSc
Jay KERNS, BGSU
"Representation of Random Variables by Convolutions"

Friday, November 1, 2002

9:30 AM    Probability/Statistics Seminar   459 MSc
Dr. Craig L. ZIRBEL, BGSU
"Occupation times of Brownian motion and other
one-dimensional Markov processes"

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

12:30 PM   Buildings(Groups&Geometries) Seminar   400 MSc
TBA

3:30 PM    COLLOQUIUM                         459 MSc
Drs. Thomas HERN and David MEEL, BGSU
"Whither Linear Algebra"
ABSTRACT:  In this talk we will: a. briefly describe the history
of the linear algebra service course, and describe the reform movement;
b. demonstrate some web-based tools for making geometry a more active
part of linear algebra instruction and on a widely available platform;
and c. describe the second course taught at BGSU for over twenty five
years.  A more extensive description is on the web at
http://www.wcnet.org/~hern/LA-coll.html

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

November 4-10, 2002

Monday, November 4, 2002

Tuesday, November 5, 2002

12:00 PM   Graduate Committee Meeting     400 MSc

Wednesday, November 6, 2002

9:30 AM    Probability/Statistics Group Meeting   400 MSc

12:30 PM   Algebra Seminar     400 MSc
"TBA"

Thursday, November 7, 2002

1:30 PM    Analysis Seminar     459 MSc
Bill ROLLI, BGSU
"Frame Potentials, Part I"

Friday, November 8, 2002

9:30 AM    Probability/Statistics Seminar   459 MSc
Dr. Jane CHANG, BGSU, ASOR
"Design and Analysis of 2-channel Microarrays for
Differential Gene Expressions"

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

12:30 PM   Buildings(Groups&Geometries) Seminar   400 MSc
Drs. Sergey SHPECTOROV and Corneliu HOFFMAN, BGSU
"Open Questions"

3:30 PM    COLLOQUIUM     459 MSc
Dr. Tong SUN, BGSU
"TBA"

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

November 11 - 17, 2002

Monday, November 11, 2002

VETERAN'S DAY - NO CLASSES - OFFICE CLOSED

Tuesday, November 12, 2002

9:00 AM - 1:00 PM   Master's Comprehensive Examinations

Wednesday, November 13, 2002

9:00 AM - 12:00 Noon    Master's Comprehensive Examinations

12:30 PM   Algebra Seminar     400 MSc
TBA

Thursday, November 14, 2002

9:00 AM - 12:00 Noon     Master's Comprehensive Examinations

1:30 PM   Analysis Seminar     459 MSc  **NOTE TIME CHANGE**
Bill ROLLI, BGSU
"Frame Potentials, Part II"

Friday, November 15, 2002

9:30 AM    Probability/Statistics Seminar   459 MSc
Dr. John CHEN, BGSU
"Probability Inequalities and Statistical Inference"

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

12:30 PM   Buildings(Groups&Geometries) Seminar   400 MSc
Drs. Corneliu HOFFMAN and Sergey SHPECTOROV, BGSU
"Open Questions, Part 3"

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

November 18-24, 2002

Monday, November 18, 2002

Tuesday, November 19, 2002

12:00 - 2:00 PM   Graduate Committee Meeting     400 MSc
AGENDA:  (i) deliberate on Comprehensive Examinations,
(ii) update on activities,
(iii) review of PhD proposal regarding the
probability/statistics requirements.

Wednesday, November 20, 2002

12:30 PM   Algebra Seminar     400 MSc
Michelle KNOX, BGSU
"Sheaf Theory"

Thursday, November 21, 2002

11:30 AM   Analysis Seminar     400 MSc   **NOTE ROOM CHANGE**
Lynette BOOS, BGSU
"Lomonosov's Invariant Subspace Theorem"

Friday, November 22, 2002

9:30 AM    Probability/Statistics Seminar   459 MSc
Keshav JAGANNATHAN, BGSU
"Characterization of Double Exponential Distribution
Using Moments of Order Statistics"

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

12:30 PM   Buildings(Groups&Geometries) Seminar   400 MSc
Drs. Corneliu HOFFMAN and Sergey SHPECTOROV, BGSU
"Open Questions, Part 4"

3:30 PM    Colloquium     459 MSc
Dr. Hanfeng CHEN, BGSU
" On the Interval Mapping for Quantitative Trait Loci
Detection"
DNA markers has made the systematic study of mapping the
quantitative trait loci (QTL) in experimental organisms feasible.
In recent years, methodological research on QTL mapping has been
extensively carried out.  However, some related statistical
problems remain unsolved. In this talk, the irregularity of the
model for the method of interval mapping proposed by Lander and
Botstein (1989) will be discussed in details. We tackle the
intrinsic non-identifiability of the irregular statistical model
and establish the consistency of the maximum likelihood estimates
of the putative QTL effect and position.  The asymptotic likelihood
ratio test (LRT) statistic for the QTL detection is obtained.
The result provides a structure for the asymptotic null distribution
which enjoys the invariance property of regular models and can
be used to simulate the approximate $p$-values of the LRT.  It is
suggested that a new approach based on our results can be developed
for the determination of threshold values to control the false
positive error across the whole genome in interval mapping.
The results are presented for the backcross model, however, they
are applicable for the intercross model as well. The results can
also be extended to other QTL mapping methods such as composite
interval mapping and multiple interval mapping.  The talk is based
on joint work with Dr. Zehua Chen of Singapore.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

November 25 - December 1, 2002

Monday, November 25, 2002

Tuesday, November 26, 2002

Wednesday, November 27, 2002

NO CLASSES - TRAVEL DAY FOR THANKSGIVING BREAK

Thursday, November 28, 2002

HAPPY THANKSGIVING!!
(THANKSGIVING BREAK)

Friday, November 29, 2002

THANKSGIVING BREAK CONTINUES

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

December 2 - 8, 2002

Monday, December 2, 2002

Tuesday, December 3, 2002

3:30 PM    Meeting of Tenured Faculty     459 MSc

Wednesday, December 4, 2002

12:30 PM   Algebra Seminar                  400 MSc
David MILLER, BGSU
"Elliptic Integrals"

Thursday, December 5, 2002

1:30 PM    Analysis Seminar   *Note Unusual Time*   459 MSc
Dr. Neal L. CAROTHERS, BGSU
"Extensions of Egorov's Theorem"
ABSTRACT:  We discuss certain extensions of Egorov's theorem
to the "continuous parameter" case.  The material should
be accessible to any student who's had MATH 765 or 741.

Friday, December 6, 2002

9:30 AM    Probability/Statistics Seminar   459 MSc
Philip TWUMASI-ANKRAH, BGSU
"Rank-Sum Tests for Dispersions"

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

12:30 PM   Buildings(Groups&Geometries) Seminar   400 MSc
Drs. Corneliu HOFFMAN & Sergey SHPECTOROV, BGSU
"Open Questions, Continued"

1:30 PM    Analysis Seminar  *Note Unusual Day/Time*   400 MSc
Dr. David PEREZ, University Complutense of Madrid, Spain
"Where do polynomials on l1n attain their norm?"

3:30 PM    COLLOQUIUM                         459 MSc
Dr. Valen JOHNSON, University of Michigan
"A Bayesian chi-squared Test for Goodness-of-Fit"
ABSTRACT:  In this talk, I describe an extension of the classical
chi-squared goodness-of-fit test to Bayesian model assessment.
The extension has two important properties.  First, the
asymptotic distribution of the proposed statistic is
chi-squared on K-1 degrees of freedom, regardless of the
dimension of the underlying parameter vector, where K is the number
of bins used in its definition.  Second, the resulting diagnostic can
be applied to essentially all Bayesian statistical models in which
the dimension of the underlying parameter vector is finite and
observations are conditionally independent.  These properties
contrast sharply with classical chi-squared goodness-of-fit tests based
on maximum likelihood estimators, in which the asymptotic
distribution of the statistic is not exactly that of a chi-squared
distribution and for which observations are typically required
to be identically distributed.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

December 9, 2002 - January 12, 2003

Monday, December 9, 2002

Tuesday, December 10, 2002

Wednesday, December 11, 2002

12:30 PM   Algebra Seminar                  400 MSc
TBA

Thursday, December 12, 2002

11:30 AM   Analysis Seminar                 459 MSc
Dr. Neal L. CAROTHERS, BGSU
"Extensions of Egorov's Theorem, Part II"
ABSTRACT:  We discuss certain extensions of Egorov's theorem
to the "continuous parameter" case.  The material should
be accessible to any student who's had MATH 765 or 741.

Friday, December 13, 2002

9:30 AM    Probability/Statistics Seminar   459 MSc
Reuben MUCHEMEDZI, BGSU
"Optimal Confidence Intervals for the Variance
of a Normal Distribution"

11:30 AM - 1:30 PM   Department Open House   459 MSc

12:30 PM   Buildings(Groups&Geometries) Seminar   400 MSc
Drs. Corneliu HOFFMAN and Sergey SHPECTOROV, BGSU
"Open Questions, continued"

Saturday, December 14, 2002

5:30 PM    Family Holiday Party   Ice Arena Lounge
Pot Luck Dinner, Free Skating, Various Activities

Sunday, December 15, 2002

Monday, December 16, 2002

8:30 AM   FINAL EXAM WEEK BEGINS

Tuesday, December 17, 2002

Final Exams Continue

Wednesday, December 18, 2002

Final Exams Continue

Thursday, December 19, 2002

Final Exams Continue

Friday, December 20, 2002

Last Day of Final Exams

6:00 PM   Graduate College Commencement   Anderson Arena

Saturday, December 21, 2002

Sunday, December 22, 2002

Winter Break Begins December 22, 2002 - January 12, 2003
Happy Holidays!!

Monday, December 23, 2002

Mon-Thurs last week
(we need them in our office prior
to this time for processing)

Tuesday, December 24, 2002

OFFICES CLOSED

Wednesday, December 25, 2002

OFFICES CLOSED

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

January 20 - 26, 2003

Monday, January 20, 2003

NO CLASSES / OFFICES CLOSED - Martin Luther King Day

Tuesday, January 21, 2003

9:00 AM - 1:00 PM     Preliminary Examinations     400 MSc

4:00 PM    Analysis Seminar     459 MSc
Organizational Meeting

Wednesday, January 22, 2003

12:30 PM   Advisory Committee    458 MSc

Thursday, January 23, 2003

9:00 AM - 1:00 PM     Preliminary Examinations     400 MSc

Friday, January 24, 2003

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

January 27 - February 2, 2003

Monday, January 27, 2003

Tuesday, January 28, 2003

12:00P - 1:30P     Graduate Committee    400 MSc

4:00 PM    Analysis Seminar     459 MSc
Juan MARIN, BGSU
"A dense set of common cyclic vectors for
diagonal operators"

Wednesday, January 29, 2003

12:30 PM   Lukacs Lecture     459 MSc
Dr. Damodar SHANBHAG, Visiting Lukacs Professor

Thursday, January 30, 2003

11:30 AM   Algebra Seminar     400 MSc
Dr. Warren Wm. McGOVERN, BGSU
"W-objects"

Friday, January 31, 2003

12:00 PM   Calendar Information due to Cyndi
for inclusion on next week's calendar listing

2:30 PM    Building (Groups and Geometries) Seminar   459 MSc
"Introduction and Recap of Open Questions"

3:30 PM    COLLOQUIUM     459 MSc
Dr. Omar de la CRUZ, Purdue University

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

February 3 - 9, 2003

Monday, February 3, 2003

12:30 PM    Advisory Committee     458 MSc

Tuesday, February 4, 2003

4:00 PM    Analysis Seminar     459 MSc
Juan MARIN, BGSU
"A dense set of common cyclic vectors for
diagonal operators, Part II"

Wednesday, February 5, 2003

12:30 PM   Lukacs Lecture     459 MSc
Dr. Damodar SHANBHAG, Visiting Lukacs Professor

Thursday, February 6, 2003

11:30 AM   Algebra Seminar     400 MSc
Dr. Warren Wm. McGOVERN, BGSU
"Neat Rings"

Friday, February 7, 2003

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

2:30 PM    Building (Groups and Geometries) Seminar   459 MSc
Drs. Corneliu HOFFMAN and Sergey SHPECTOROV, BGSU
"Open Questions"

3:30 PM    COLLOQUIUM   459 MSc
Dr. Gabor J. SZÉKELY, BGSU & The Hungarian Academy of Science
"E-statistics: the Energy of Statistical Samples"

ABSTRACT: Newton's potential energy is generalized for
statistical applications. First, we introduce the
notion of potential energy E(n) of statistical samples
of size n in the 'field' of a given probability
distribution (null distribution) f(x). While Newton's
gravitational force is inversely proportional to the
squared distance of planets, in statistics where the
'planets' are the statistical observations, the
absolute value of the force is constant.

E(n) is always nonnegative and nE(n) tends to a finite
limit distribution (as n tends to infinity) if and
only if the sample comes from the null distribution
f(x). This limit distribution depends on a sequence of
possible "energy levels" (eigenvalues) "a" of the
eigenvalue equation g(x)'' - v g(x) + a g(x) = 0, the
Schroedinger equation of statistics, where g is the
eigenfunction corresponding to the eigenvalue "a", and
v=v(f(x)) is a function of f(x).

The energy perspective of statistics, the principle of
least possible effort = minimizing E is very appealing
and also powerful in terms of simplicity and
effectiveness of statistical decisions.
Asymptotically, the potential energy E(n) turns out to
be the natural rotation invariant multivariate
generalization of Cramer's classical distance and is
widely applicable for many multivariate statistical
problems including clustering in bioinformatics.  This
research on the energy perspective of statistics
started more than 20 years ago when the speaker gave a
seminar talk in Moscow. The related 'extremal'
probability problems attracted the attention of
A.N. Kolmogorov, Yu. V. Prokhorov, V. Zolotarev and
some of their students, e.g. A.K. Bakirov.

The present research is joint with Maria Hong and
supported by NSA grant MDA904-02-1-0091.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

February 10 - 16, 2003

Monday, February 10, 2003

Tuesday, February 11, 2003

12:30 PM   Personnel Committee     400 MSc
AGENDA:  classroom visitations

3:30 PM    Tenure/Tenure-Track Faculty Meeting   459 MSc
AGENDA:  chair candidates/discussions

Wednesday, February 12, 2003

12:30 PM   Lukacs Lecture     459 MSc
Dr. Damodar SHANBHAG, Visiting Lukacs Professor
"Damage Models"

Thursday, February 13, 2003

11:30 AM   Algebra Seminar     400 MSc
Dr. Corneliu HOFFMAN, BGSU
"Theory of Buildings"

Friday, February 14, 2003

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

2:30 PM    Building (Groups and Geometries) Seminar   459 MSc
Drs. Corneliu HOFFMAN and Sergey SHPECTOROV, BGSU
"Open Questions"

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

February 17 - 23, 2003

Monday, February 17, 2003

**10:15 AM  Candidate for Director of Service Mathematics**
Meet with Faculty in Lounge

**4:00 PM   COLLOQUIUM     459 MSc**
Director of Service Mathematics Candidate

Tuesday, February 18, 2003

4:00 PM    Analysis Seminar     459 MSc
Dr. Juan BES, BGSU
"Hypercyclic subspaces and the essential spectrum"

Wednesday, February 19,2003

12:30 PM   Lukacs Lecture     459 MSc
Dr. Damodar SHANBHAG, Visiting Lukacs Professor
"Damage Models"

Thursday, February 20, 2003

**8:30 AM  Candidate for Director of Service Mathematics**
Meet with Faculty in Lounge

11:30 AM   Algebra Seminar     400 MSc
Dr. Corneliu HOFFMAN, BGSU
"Theory of Buildings"

Friday, February 21, 2003

**10:15 AM Candidate for Director of Service Mathematics**
Meet with Faculty in Lounge

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

2:30 PM    Building (Groups and Geometries) Seminar   459 MSc
Drs. Corneliu HOFFMAN and Sergey SHPECTOROV, BGSU
"Open Questions" (continued)

**3:30 PM  COLLOQUIUM   459 MSc**
Director of Service Mathematics Candidate

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

February 24 - March 2, 2003

Monday, February 24, 2003

**10:00 AM   Director of Service Math Candidate**
Meet with Faculty in Lounge

**4:00 PM    COLLOQUIUM     459 MSc**
Director of Service Math Candidate

Tuesday, February 25, 2003

4:00 PM    Analysis Seminar     459 MSc
Dr. Juan BES, BGSU
"Hypercyclic subspaces and the essential spectrum, Part II"

Wednesday, February 26, 2003

12:30 PM   Lukacs Lecture     459 MSc
Dr. Damodar SHANBHAG, Visiting Lukacs Professor
"Damage Models"

Thursday, February 27, 2003

11:30 AM   Algebra Seminar     400 MSc
Dr. Corneliu HOFFMAN, BGSU
"Theory of Buildings, Part II"

Friday, February 28, 2003

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

2:30 PM    Building (Groups and Geometries) Seminar   459 MSc
Drs. Corneliu HOFFMAN and Sergey SHPECTOROV, BGSU
"Open Questions, continued"

3:30 PM    COLLOQUIUM     459 MSc

Dr. Krzysztof PODGORSKI, Indiana Univ-Purdue Univ, Indianapolis

"Generalized Laplace Distributions - an alternative to heavy tails"

ABSTRACT: For many years the Laplace distribution was
in a sense a step daughter among continuous
distributions. The dominance of the normal (the so
called Gauss or Gauss-Laplace distribution) and the
method of least-squares is overwhelming in literature.
The Laplace distribution on the other hand possesses
an "ugly" sharp needle at its mode (a lack of
differentiability is in contrast with the smoothness
of the normal function) and is geared - as far as
inference is concerned - towards the L_1 metric - a
method of minimizing sum of absolute deviations which
in pre-computer era was a substantial obstacle and
drawback. Of course objections to absolute deviation
and non differentiability at a single point are
irrelevant nowadays, but prejudices die hard,
especially if there seems to be no obvious need for
change. However in many real life situation there is a
need for models alternative to the symmetric
short-tailed'' Gaussian domain. In this context, a
lot of attention was given to heavy tailed
distributions without finite second moments such as,
for example, stable distributions.  In this talk, I
would like to demonstrate that the Laplace
distributions and their generalizations are attractive
alternatives to these heavy tailed distributions. In
fact, Laplace distributions have heavier tails than
normal, yet, they still have finite second moments.
They can naturally account for asymmetry, their theory
is elegant, and statistical inference for them is
straightforward.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

March 3 - 9, 2003

Monday, March 3, 2003

12:30 PM    Advisory Committee     458 MSc

7:00 PM     Actuarial Science Society Meeting   459 MSc

Tuesday, March 4, 2003

12:30 PM   Personnel Committee Meeting     459 MSc

4:00 PM    Analysis Seminar     459 MSc
Dr. Alexander IZZO, BGSU
"Existence, uniqueness, and smoothness of solutions
to ordinary differential equations"

Wednesday, March 5, 2003

12:30 PM   Lukacs Lecture     459 MSc
Dr. Damodar SHANBHAG, Visiting Lukacs Professor
"Damage Models"

Thursday, March 6, 2003

Friday, March 7, 2003

12:00 PM   **Calendar Information due to Cyndi
for inclusion in not next week's calendar listing
but the week after Spring Break's listings**

Saturday, March 8, 2003

Spring Break 2003 Begins

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

March 17 - 23, 2003

Monday, March 17, 2003

Tuesday, March 18, 2003

12:30 PM   Personnel Committee Meeting   400 MSc

4:00 PM    Analysis Seminar     459 MSc
Rebecca SANDERS, BGSU
"Weakly Supercyclic Operators"

Wednesday, March 19, 2003

12:30 PM   Lukacs Lecture     459 MSc
Dr. Damodar SHANBHAG, Visiting Lukacs Professor
"Damage Models"

Thursday, March 20, 2003

11:30 AM   Algebra Seminar     400 MSc
Dr. Harm Pralle
Institute fuer Geometrie, TU-Braunschweig
"Quest for hyperplanes of dual polar spaces"

3:45 PM    Lukacs Lecture
Dr. M. B. RAO, Visiting Lukacs Professor
North Dakota State University

Four research problems from the world of statistical consulting

The presenter is active in statistical consulting. Interesting
problems requiring novel solutions do crop up from time to
time. In the talk, the following problems will be presented,
synthesized mathematically and probabilistically, and
discussed.

1. One bulb, two bulbs, how many bulbs light up? - A problem
from a pharmaceutical company.
2. A card shuffling problem - A problem from Chemistry.
3. The Hat Problem - A problem in the area Genomic Complexity
4. How do I do Cluster Analysis for contours - A problem from
Antarctica Research.

Friday, March 21, 2003

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

2:30 PM    Building (Groups and Geometries) Seminar   459 MSc
Drs. Corneliu HOFFMAN and Sergey SHPECTOROV, BGSU
"Open Questions, continued"

3:30 PM    COLLOQUIUM    459 MSc
Dr. Harm PRALLE
Institute fuer Geometrie, TU-Braunschweig
"Linear geometries of Baer subplanes"

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

March 24 - 30, 2003

Monday, March 24, 2003

12:30 PM    Advisory Committee     458 MSc

Tuesday, March 25, 2003

3:30 PM    Tenured Faculty Department Meeting   459 MSc

Wednesday, March 26, 2003

12:30 PM   Lukacs Lecture     459 MSc
Dr. Damodar SHANBHAG, Visiting Lukacs Professor
"Damage Models"

Thursday, March 27, 2003

11:30 AM   Algebra Seminar     400 MSc
Dr. Larry DUNNING, BGSU
"Optimal encoding of linear block codes for
error detection/correction"

4:00 PM    Analysis Seminar     459 MSc
Rebecca SANDERS, BGSU
"Weakly Supercyclic Operators, Part II"

Friday, March 28, 2003

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

2:30 PM    Building (Groups and Geometries) Seminar   459 MSc
Drs. Corneliu HOFFMAN and Sergey SHPECTOROV, BGSU
"Open Questions, continued"

3:30 PM    COLLOQUIUM      459 MSc
Dr. Chris HEYDE, Columbia University & Australian Nat'l Univ.

ABSTRACT:  Statistical inference as it is generally viewed in
universities remains rather static and many of the products of modern
research are not being passed on to the next generation of students.
Furthermore, research needs are changing, as is our capacity to use
computers as a tool for model exploration. Some personal perspectives
on change will be illustrated through discussion of a collection of
problems which fall outside the classical paradigms. Thoughts on the
impact of change on the statistical sciences, and implications for
its future, will also be included.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

March 31 - April 6, 2003

Monday, March 31, 2003

Please note--the 3:30 PM Lukacs Lectures on Monday, Tuesday, and
Wednesday will begin promptly at 3:30 PM.

3:30 PM    Lukacs Lecture     459 MSc
Dr. Christopher HEYDE, Australian National University
"The Controversy Over Tailweight of Distributions"

ABSTRACT:  The behavior of most stochastic models is critically
influenced by the tails of the distributions which drive the models.
This is especially important in such areas as queueing system design,
asset pricing and insurance risk where distinguishing between
exponential and power tails is vital. However, the literature reveals
considerable divergence of opinion about appropriate tail weights. The
empirical evidence will be discussed and it will be explained why the
distinctions are surprisingly difficult.

Tuesday, April 1, 2003

Reservations for the KME Induction Banquet due to Cyndi or Warren today.

3:30 PM    Lukacs Lecture     459 MSc
Dr. Christopher HEYDE, Australian National University
"The Issue of Long-Range Dependence"

ABSTRACT:  Long-range dependence (LRD) has been widely observed in
applications, dating back at least to Student in 1927. The subject was
crystallized by Mandelbrot in the 1960s following on from work of Hurst
on Nile river flow data and it has produced a burgeoning literature.
Unfortunately, the presence of LRD necessitates major changes in
statistical practice, and the concept is rather difficult to use. This
has led to serious attempts to explain away the phemomenon. The evidence
will be discussed, and more transparent interpretations of LRD than are
standard will be provided.

Wednesday, April 2, 2003

MAA Ohio Section Registrations for April 4-5 at OSU are due today!

12:30 PM   Lukacs Lecture     459 MSc
Dr. Damodar SHANBHAG, Visiting Lukacs Professor
"Damage Models"

3:30 PM    Lukacs Lecture     459 MSc
Dr. Christopher HEYDE, Australian National University
"Stylized Statistical Features and Modeling of Financial
Data"

ABSTRACT:  The geometric Brownian motion (Black-Scholes) model for the
price of a risky asset which provides the theoretical underpinning of the
huge financial derivatives industry stipulates that the log returns are
independent and identically distributed and Gaussian. However, the
empirical evidence shows the distribution to be leptokurtic (much higher
peak and heavier tail than the Gaussian) and it also reveals strong
dependence. The talk will be concerned with the stylized features which
one finds in the data and how these can be incorporated into a model which
is still simple enough to be practically useful.

Thursday, April 3, 2003

Department Office closed from 9:30 AM - 11:00 AM so the Classified Staff
may attend the annual Classified Staff Awards Ceremony at BTSU

11:30 AM   Algebra Seminar     400 MSc
Dr. Larry DUNNING, BGSU, Computer Science
"Optimal Encoding of Linear Block Codes for Error
Detection/Correction, Part II"

4:00 PM    Analysis Seminar     459 MSc  (Note change in day)
Bill ROLLI, BGSU
"Frames and the Singular Value Decomposition"

Friday, April 4, 2003

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

2:30 PM    Building (Groups and Geometries) Seminar   459 MSc

3:30 PM    COLLOQUIUM      459 MSc
Dr. Yuehua WU, York University
"Linear Model Selection by Cross-Validation"

ABSTRACT:  In this talk, we will review the linear model selection
criteria discussed in statistical literature. We will propose a
consistent model selection criterion based on cross-validation. There
is a penalty term in this criterion. We will show how to select it
based on observed data, which will provide improved performance of the
criterion.

Saturday, April 5, 2003

1:00 PM    66th Kappa Mu Epsilon Induction Banquet
Towers Restaurant
Dr. John T. GRESSER, BGSU will be speaking

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 7 - 13, 2003

Monday, April 7, 2003

12:30 PM    Advisory Committee     458 MSc

Tuesday, April 8, 2003

3:30 PM    Department Meeting     459 MSc

Wednesday, April 9, 2003

12:30 PM   Statistics Seminar     459 MSc
Dr. Damodar SHANBHAG, Visiting Lukacs Professor
"Damage Models"

Thursday, April 10, 2003

11:30 AM   Algebra Seminar     400 MSc
Dr. Warren Wm. McGOVERN, BGSU
"Coherent Frames and Their Relation to Commutative Rings"

4:00 PM    Analysis Seminar     459 MSc
TBA

Friday, April 11, 2003

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

1:30 PM    Special Statistics Presentation     115 Olscamp
Professor Dennis LIN, Pennsylvania State University
"Statistical Data Mining: A Global View and Some Research
Potentials"
ABSTRACT:  Statistical data mining is the exploration and analysis of
large data set by automatic or semiautomatic means with the purpose
of discovering meaningful patterns. The patterns or rules are then
used for decision making via a process known as knowledge discovery.
Much of exploratory data analysis and influential statistics concerns
the same problems. The chief distinction between statistical data
mining and the exploratory data analysis resides in the size and
dimensionality of the data set involved. Data mining in general deals
with much more massive data sets for which highly interactive
analysis is not fully feasible. In this talk, I will discuss the
scales of data set sizes and the limits of feasibility and attempt to
address some research problems in this area.

2:30 PM    Building (Groups and Geometries) Seminar   459 MSc
Drs. Corneliu HOFFMAN and Sergey SHPECTOROV, BGSU
"Open Questions"

3:30 PM    COLLOQUIUM     459 MSc
Professor Dennis LIN, Pennsylvania State University
"Recent Advances in Design of Experiment"
ABSTRACT:  Design of experiment seeks an efficient way to collect
useful information. In the past decade, we have witnessed the
resolution of information technology. Many classical methods in
design of experiment originated from agricultural problems may not
be appropriate for the informatic era. This talk attempts to explore
some important issues in design of experiment that deserve immediate
attention for future research. Topics to be discussed include
supersaturated design, uniform design, computer experiment, optimal
foldover plan, dispersion analysis, and multi-response surface
methodology. For each subject the problem will be introduced, some
initial results will be presented, and future research problems will
be suggested.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 14-20, 2003

Monday, April 14, 2003

Tuesday, April 15, 2003

4:00 PM    Analysis Seminar     459 MSc
Lynette BOOS, BGSU
"A General Lebesgue Decomposition, Part I"

Wednesday, April 16, 2003

12:30 PM   Statistics Seminar     459 MSc
Dr. Damodar SHANBHAG, Visiting Lukacs Professor
"Damage Models"

Thursday, April 17, 2003

11:30 AM   Algebra Seminar     400 MSc
TBA

Friday, April 18, 2003

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

2:30 PM    Building (Groups and Geometries) Seminar   459 MSc
Drs. Corneliu HOFFMAN and Sergey SHPECTOROV, BGSU
"Open Questions"

3:30 PM    COLLOQUIUM/Joint with Psychology       459 MSc
Dr. Ke-Hai YUAN, University of Notre Dame
"Three Mahalanobis-Distances and Their Role in Assessing
Unidimensionality"

ABSTRACT:  Unidimensionality is the hallmark psychometric feature of
a well-constructed measurement scale.  However, in determining the
degree to which a set of items form a unidimensional scale, aberrant
item response patterns may distort our investigations.  For example,
aberrant response patterns may adversely impact inter-item
covariances which , in turn, can distort estimates of a scale's
dimensionality and reliability.  In this study, we investigate and
compare the utility of three Mahalanobis-distance measures in
identifying and downweighting aberrant item response patterns.  Our
finding indicated that a residual-based M-distance measure had the
best properties.  Specifically, response patterns having greater
residual-based M-distances were responsible for observed violations
of unidimensionality.  When these response patterns were properly
downweighted according to this M-distance, the data fit an l-factor
model better and scale reliability increased.  The procedures are
illustrated using three real-data sets.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 21 - 27, 2003

Monday, April 21, 2003

Tuesday, April 22, 2003

4:00 PM    Analysis Seminar     459 MSc
Lynette BOOS, BGSU
"A General Lebesgue Decomposition, Part II"

Wednesday, April 23, 2003

12:30 PM   Statistics Seminar     459 MSc
Dr. Damodar SHANBHAG, Visiting Lukacs Professor
"Infinite Divisibility"

Thursday, April 24, 2003

11:30 AM   Algebra Seminar     400 MSc
Michelle KNOX, BGSU
"On Epimorphisms in the Category W, Part II"

Friday, April 25, 2003

12:00 PM   Calendar Information due to Cyndi
for inclusion in the final 2 week's of the semester
(last week of classes and final exam week)
calendar listings

2:30 PM    Building (Groups and Geometries) Seminar   459 MSc
Drs. Corneliu HOFFMAN and Sergey SHPECTOROV, BGSU
"Open Questions"

3:30 PM    COLLOQUIUM     459 MSc

ABSTRACT:
In complex systems with controllable reliability any complete
system failure does not occur suddenly but usually is a result of
accumulation of a sequence of many gradual failures. It stimulates
consideration of systems with gradual failures of different types, or
multi-state reliability systems (for an extensive recent
bibliography, please, see Lisniansky A., Levitin G., Korchak E.
(2001) Reliability Analysis and Optimization of Multi-state  Systems).
Two main characteristics are common in the reliability
characteristics under some assumptions about repair process. The ways
to evaluate these characteristics depend on the approach to the
following two aspects: probabilistic and structural. Probabilistic
aspect deals with calculation of the system states probabilities, and
uses them in reliability calculations. The structural aspect
considers kind of direct evaluation of reliability characteristics
for any given structure of a particular system.
In the talk a general approach to describe, model and
evaluate the most common reliability characteristics of complex
hierarchical systems with various types of gradual failures will be
proposed. Such failures may change the state of the system and the
quality of its operation, but do not necessarily lead to complete
system failure. Some special set of "failures states" of component of
the system cause its full failure. The reliability of the system is
partially controllable. Various repair policies are possible after
the gradual failure of some part of the system detection:  the whole
system, only failed element, or  some structural part of the system
can be repaired in this case.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 28 - May 4, 2003

Monday, April 28, 2003

12:30 PM   Advisory Committee Meeting   458 MSc

Tuesday, April 29, 2003

4:00 PM    Analysis Seminar     459 MSc
TBA

Wednesday, April 30, 2003

12:30 PM   Statistics Seminar     459 MSc
Dr. Damodar SHANBHAG, Visiting Lukacs Professor
"Infinite Divisibility"

Thursday, May 1, 2003

11:30 AM   Algebra Seminar     400 MSc
TBA

3:30 PM    Open House Honoring Retiring Faculty--   459 MSc
John L. HAYDEN and W. Charles HOLLAND

Friday, May 2, 2003

2:30 PM    Building (Groups and Geometries) Seminar   459 MSc
Drs. Corneliu HOFFMAN and Sergey SHPECTOROV, BGSU
"Open Questions"

3:30 PM    COLLOQUIUM & Graduate Assistant Recognitions   459 MSc
Dr. Joan GARFIELD, University of Minnesota
"Statistics Education: An Emerging Discipline"

ABSTRACT: This presentation will describe the emergence of
statistics education as a unique discipline over the past thirty
years. The research literature supporting this discipline will be
summarized and implications of this literature for teaching and
assessing students will be suggested.  New developments and
important projects in statistics education will be shared.

Saturday, May 3, 2003

Sunday, May 4, 2003

Monday, May 5, 2003

FINAL EXAMS BEGIN at 8:30 AM

Tuesday, May 6, 2003

Final Exams Continue

Wednesday, May 7, 2003

Final Exams Continue

Thursday, May 8, 2003

Final Exams Continue

Friday, May 9, 2003

Last Day of Final Exams ending at 5:30 PM

7:00 PM   Graduate College Commencement   Anderson Arena

Saturday, May 10, 2003

9:00 AM   Undergraduate Commencement (A&S)   Anderson Arena

Sunday, May 11, 2003

Break Before Summer Term Week

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

September 1 - 7, 2003

Monday, September 1, 2003

LABOR DAY - NO CLASSES - OFFICE CLOSED

Tuesday, September 2, 2003

Wednesday, September 3, 2003

3:30 PM     Undergraduate Committee Meeting     400 MSc

3:30 PM     Graduate Committee Meeting     459 MSc

Thursday, September 4, 2003

2:30 AM     Algebra Seminar     400 MSc
Dr. Corneliu HOFFMAN, BGSU

Friday, September 5, 2003

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   459 MSc
"Teaching Derivatives"

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

September 8 - 14, 2003

Monday, September 8, 2003

Tuesday, September 9, 2003

Wednesday, September 10, 2003

Thursday, September 11, 2003

2:30 AM     Algebra Seminar     400 MSc
Dr. Corneliu HOFFMAN, BGSU
"Classifying Flips in Classical Buildings, Part 2"

Friday, September 12, 2003

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   459 MSc
"Teaching Derivatives"

3:30 PM     COLLOQUIUM     459 MSc
Dr. Sergey SHPECTOROV, BGSU
"The Monster"
ABSTRACT:  The Monster is the largest sporadic simple group.
The history of this group begins in the XIX century with the
discovery of the first sporadic simple groups, the Mathieu groups.
The next big step was made by J. Conway who constructed the three
Conway sporadic simple groups.  The existence of the Monster was
conjectured in 1971 and it was finally constructed in 1981 by
R. Griess.  In more recent years the Moonshine phenomenon related
the Monster to theoretical physics.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

September 15 - 21, 2003

Monday, September 15, 2003

3:30 PM     Analysis Seminar   459 MSc
Dr. Kit CHAN, BGSU
"Cyclic Properties of the Volterra Operator"

Tuesday, September 16, 2003

3:30 PM   Department Meeting (Tenured&Tenure-Track)  459 MSc
AGENDA:  Program review process will be discussed.
Vice Provost for Academic Affairs, Mark Gromko,
will be joining the meeting.

Wednesday, September 17, 2003

3:30 PM     Undergraduate Committee Meeting     459 MSc

Thursday, September 18, 2003

11:30 AM - 2:00 PM     Math Lab Open House   216 UNVH
Refreshments will be served

2:30 AM     Algebra Seminar   459 MSc
Dr. Warren Wm. McGOVERN, BGSU
"TBA"

Friday, September 19, 2003

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   459 MSc
"Story Problems in Calculus"

3:30 PM     COLLOQUIUM     459 MSc
Dr. John CHEN, BGSU
"A Hybrid Logistic Model for Adolescent Suicide Studies"
ABSTRACT:  For logistic regression in case-control studies, when risk
factors associated with the outcome are exceedingly rare in the control
group, the estimation of parameters in the model becomes difficult.
We propose a two-stage hybrid method to solve this problem.  In the
first stage we model the risk due to the rare factor, and in the
second stage we model the residual risk due to the other factors
using standard logistic model.  An example on adolescent suicide
studies will be included to elucidate the method.  This talk is based
on collaborative research with Fred Hoppe (McMaster University), and
Satish Iyengar and David Brent (University of Pittsburgh).

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

September 22 - 28, 2003

Monday, September 22, 2003

3:30 PM     Analysis Seminar   459 MSc
Dr. Kit CHAN, BGSU
"Cyclic Properties of the Volterra Operator, Part II"

Tuesday, September 23, 2003

9:00 AM - 1:00 PM   Qualifying Preliminary Examinations   400 MSc

3:30 PM     TENURED Faculty Meeting   459 MSc

Wednesday, September 24, 2003

3:30 PM     Undergraduate Committee Meeting     459 MSc

Thursday, September 25, 2003

9:00 AM - 1:00 PM   Qualifying Preliminary Examinations   400 MSc

2:30 AM     Algebra Seminar     400 MSc
Dr. Warren Wm. McGOVERN, BGSU
"Musings on Group Rings"

Friday, September 26, 2003

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   459 MSc
"Teaching Applications of Calculus"

3:30 PM     COLLOQUIUM     459 MSc
Dr. Jon HALL, Michigan State University
"Quaternions, Representation Theory and Cell Phones"
ABSTRACT:  Multiple antenna communication systems include the cell
phone networks that use those towers in grocery store parking lots.
With more than one antenna, we can use matrices to encode information
and improve error handling.  The Alamouti scheme is one of the most
widespread and successful and is based on Hamilton's quaternions.
The talk will describe this and other examples and some of the
associated theory.  This involves interesting mathematics, in
particular representations of groups.  Much of the talk will be
accessible to students.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

September 29 - October 5, 2003
BGSU Homecoming Week

Monday, September 29, 2003

3:30 PM     Analysis Seminar     459 MSc
Dr. Kit CHAN, BGSU
"Cyclic Properties of the Volterra Operator, Part III"

Tuesday, September 30, 2003

Wednesday, October 1, 2003

12:00 PM    Advisory Committee Meeting   458 MSc

3:30 PM     Graduate Committee Meeting   400 MSc

Thursday, October 2, 2003

9:30 AM      Probability Seminar   447 MSc
Keshav JAGANNATHAN, BGSU
"Martingales in Continuous Time"

2:30 AM     Algebra Seminar     459 MSc
Dr. Sergey SHPECTOROV, BGSU
"TBA"

Friday, October 3, 2003

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   459 MSc
"Trigonometric and exponential functions in calculus"

3:30 PM     COLLOQUIUM     459 MSc

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

October 6 - 12, 2003

Monday, October 6, 2003

3:30 PM     Statistics Committee Meeting   445 MSc
2.  Visiting Professor

3:30 PM     Analysis Seminar     459 MSc
Dr. Kit CHAN, BGSU
"Cyclic Properties of the Volterra Operator,
Part IV"

Tuesday, October 7, 2003

9:30 AM     Probability Seminar   447 MSc
"Long-range dependence, self-similarity, and
fractional Brownian motion, an introduction"

Wednesday, October 8, 2003

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Undergraduate Committee Meeting     459 MSc

Thursday, October 9, 2003

FALL BREAK - NO CLASSES - OFFICE OPEN

Friday, October 10, 2003

FALL BREAK - NO CLASSES - OFFICE OPEN

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

October 13 - 19, 2003

Monday, October 13, 2003

3:30 PM     Lukacs Lecture   459 MSc
Professor Eugene Seneta, Visiting Lukacs Professor
"Eugene Lukacs and Characterizations"

ABSTRACT:  Lukacs'(1942) brilliant characterization of the normal
from statistical independence of the sample mean and variance was
contemporaneous with Bernstein's characterization by independence
of linear forms, overlapped in content, and both assumed only the
same simple moment condition.

It became apparent later that it is the statistical independence
of linear or quadratic forms in independent random variables which
implies the existence of moments of the consituent random variables.
This led to the usability of proofs which had assumed moment
conditions from the outset.

This talk will focus on how the Kac-Bernstein-Gnedenko
characterization may be developed in purely real variable terms
using several of Lukacs' basic tools, including functional equations.
Lukacs was a master of complex variable theory which he applied to
great effect. Characteristic functions are, however, functions of a
real variable, and in case of symmetry about zero of a distribution,
real functions. Thus purely real variable methodology for
probabilistic contexts may also be desirable.

There is much to be learned from reading the old masters; and
thus to be gained from examining carefully Lukacs' considerable
oeuvre on characterization of distributions.

3:30 PM     Analysis Seminar     445 MSc  **Note Room Change**
Dr. Juan B=C9S, BGSU
"Operators with Common Hypercyclic Vectors"

Tuesday, October 14, 2003

Wednesday, October 15, 2003

12:00 PM    Advisory Committee Meeting   458 MSc

Thursday, October 16, 2003

9:30 AM      Probability Seminar   447 MSc
"Self-similar Processes and Fractional Brownian Motion"

2:30 AM     Algebra Seminar     400 MSc
TBA

**Note Day Change**
3:30 PM   COLLOQUIUM   459 MSc  **Note Day Change**
Dr. Carl COWEN, Purdue University
"Linear Fractional Maps in Several Variables"

ABSTRACT:  This talk will present work on linear fractional maps in
several variables and their composition operators, including work of
the speaker with Barbara MacCluer and work with Alex Richman and some
undergraduates.  We will discuss some geometric properties of the
maps and the solution of Schroeder's functional equation in this
setting and use the results to describe the adjoints and some spectra
of composition operators whose symbols are linear fractional maps of
the ball into itself.

Friday, October 17, 2003

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:00 PM    Ohio Section Mathematical Association Meeting begins
For program, see:  http://www.jcu.edu/math/maa/fall/program.htm

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

October 20-26, 2003

Monday, October 20, 2003

**3:30 PM   COLLOQUIUM     459 MSc**
Dr. Juergen KLUENER, University of Kassel, Germany
"On Polynomial Factorization"

ABSTRACT:  It is well known that the factorization of polynomials
over the integers is in polynomial time. Unfortunately this
algorithm was not useful in practice. Recently Mark van Hoeij
found a new factorization algorithm which works very well in
practice. We present the ideas of his algorithm and extend this
algorithm to an algorithm for factoring polynomials in F[t][x],
where F is a finite field. Surprisingly the algorithm is much
simpler and more efficient in this setting.

3:30 PM     Lukacs Lecture/Statistics Seminar   445 MSc
Dr. Eugene SENETA, Visiting Lukacs Professor
"The Variance-Gamma (V.G.) Model for Financial Data"

ABSTRACT:  The (symmetric) v.g. distribution for log-increment
of price was introduced by D.B. Madan and E.Seneta,
Journal of Business, 63(1990)511-524, and has since found use
on Wall Street. The underlying v.g. model over continuous time
for price movement is an example of subordinated geometric
Brownian motion (GBM), where the increment in the intrinsic
time process has gamma distribution. In the earlier t- process
model of Praetz (1972), to which the v.g. model was introduced
as direct competitor, the increment in the intrinsic time process
has inverse gamma distribution. (Gamma and inverse gamma are
clearly extreme cases of the GIG distribution, and  "dual" to
each other.)  The work of C.C. Heyde (J.Appl. Prob., 36(1999)
1234-1239) and his students on financial mathematics, exposited
by him in Lukacs Lectures earlier this year, proposed several
new directions for subordinated  GBM models. One related to
statistical dependence of log-price increments while retaining
their stationarity. The work of Madan, Carr and Chang (1998)
allowed for skewness in a generalized v.g. distribution (while
retaining the entire iid increment structure).  This talk has as
its main themes presentation of the subordinated GBM model, and
fitting from data of the v.g. distribution. Lecture 3 will focus
more on  distribution theory aspects of the v.g.process and
t-process.

4:30 PM     Lukacs Lecture Discussion   447 MSc

Tuesday, October 21, 2003

Wednesday, October 22, 2003

12:00 PM    Advisory Committee Meeting   458 MSc

3:30 PM     Undergraduate Committee Meeting     400 MSc

Thursday, October 23, 2003

9:30 AM      Probability Seminar   447 MSc
Michael SARVER, BGSU
"Heuristic approaches to estimating the
Hurst exponent"

2:30 PM     Algebra Seminar     459 MSc

Friday, October 24, 2003

12:00 PM   Calendar Information due to Cyndi
for inclusion in next week's calendar listing

12:30 PM    Calculus Seminar   459 MSc

**3:30 PM   COLLOQUIUM     459 MSc**
Dr. Fred HOPPE, McMaster University, Canada
"Estimation of Similarity Indices for Student Responses
On Multiple Choice Exams"

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

October 27 - November 2, 2003

Monday, October 27, 2003

3:30 PM     Analysis Seminar     459 MSc
Dr. Juan BES, BGSU
"Operators with Common Hypercyclic Subspaces, Part II"

3:30 PM     Lukacs Lecture     445 MSc
Professor Eugene SENETA, Visiting Lukacs Professor
"Distribution Theory and Duality of Two Log-Increment
Distributions in a Financial Model"

ABSTRACT:  This talk follows on from last week's Lukacs Lecture, but
will be self contained, with some transparencies revisited.
In the tradition of work of Eugene Lukacs, there will be
presentation of some characteristic function ideas.
The special distributions to be considered are the
t-distribution and the v.g. distribution,  both special cases of the
distribution N(c+theta Y, sigma^2 Y), where  Y is a non-negative
random variable with mean unity.  The  sense in which these two
distributions are dual will be made manifest when both are symmetric
about zero using a simple general duality argument, whose
generalization to non-symmetry is not known to the speaker.

Tuesday, October 28, 2003

***3:30 PM     Department Meeting   459 MSc***
Dr. Folkins, Provost for Academic Affairs and
Dr. Niemann, Dean, College of Arts & Sciences
will be attending our meeting.
AGENDA:  Unit Strategic Planning session.

Wednesday, October 29, 2003

12:00 PM    Advisory Committee Meeting   458 MSc

3:30 PM     Undergraduate Committee Meeting     400 MSc

Thursday, October 30, 2003

9:30 AM      Probability Seminar   447 MSc
G. Jay KERNS, BGSU
"Convergence in Distribution of the R/S Statistic for
Long-Range Dependence"

2:30 PM     Algebra Seminar     459 MSc

Friday, October 31, 2003

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   400 MSc
Setting up word problems

3:30 PM     COLLOQUIUM     459 MSc
Dr. Dale WINTER, BGSU
"Looking Back: How Hard is it to Check an Answer?"

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

November 3 - 9, 2003

Monday, November 3, 2003

3:30 PM     Analysis Seminar     459 MSc
Rebecca SANDERS, BGSU
"Hyponormal Operators"

3:30 PM     Lukacs Lecture     445 MSc
Professor Eugene SENETA, Visiting Lukacs Professor
"Stepwise Test Procedures Based on Ordered P-values"
ABSTRACT:  Hypotheses H_1, H_2,..., H_n are to be simultaneously
tested using univariate     test statistics X_1,X_2,...,X_n which
have joint continuous distribution. Individual P-values
R_1,R_2,...,_Rn are calculated from known marginal distributions of
X_1,X_2,...,X_n, and are used to accept or reject H_i, i=1,...,n,
while maintaining strong control of familywise error rate.
Modifications of the well-known "Bonferroni" adjustment for
dependence will be presented.
In a textbook example of multiple comparisons, simple
stepwise procedures are shown to perform better than the usual
Tukey T-comparison.
This, the last of the speaker's 4 Lukacs Lectures,
recapitulates a talk with the same title presented at BGSU on
Monday, January 29,2001, but is self-contained and presents new
work directed to practical investigation.  The ongoing work is
joint with Dr. John T. Chen.

Tuesday, November 4, 2003

Wednesday, November 5, 2003

12:00 PM    Advisory Committee Meeting   458 MSc

5:30-8:00 PM   Government, Non-Profit, & Volunteer Fair
>>             BTSU Ballroom
>>The Government, Non-Profit, and Volunteer Fair provides a forum for
>>students of all majors to meet with representatives from local,
>>state, and federal government agencies as well as a variety of
>>non-profit organizations to discuss opportunities for full-time,
>>internship, and volunteer positions. A complete list of
>>participating organizations is attached and will also be displayed
>>around campus on posters announcing the job fair.

Thursday, November 6, 2003

9:30 AM      Probability Seminar   447 MSc
"Fractional Brownian Motion"

2:30 PM     Algebra Seminar     459 MSc
"A Proof of Burnside's Theorem" (Part 1)
ABSTRACT:  An introduction to characters.

Friday, November 7, 2003

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   400 MSc
"Integration Techniques"

3:30 PM     COLLOQUIUM     459 MSc
Dr. Diem M. NGUYEN, BGSU
"Mathematics and Technology"
ABSTRACT:  A latest technology in Web-based applications that
provides a new venue for creation, testing, grading, and
administration of online mathematics practice sessions, homework,
quizzes and exams in multiple settings. Item generation, answer
verification and item statistics algorithms are constructed with
simple mathematical commands and tags. Many mathematicians have
heard that MathML (Mathematical Markup Language) encodes mathematical
materials suitable for teaching and scientific communication at all
levels,but have never seen how it works, then this should be an
opportunity for you to learn how MathML encodes both mathematical
notations and mathematical meanings, and provides a back-layer for
rendering proper Online Dynamic Mathematics Exams in popular Web
browsers.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

November 10 - 16, 2003

Monday, November 10, 2003

3:30 PM     Analysis Seminar     459 MSc
Rebecca SANDERS, BGSU
"Hyponormal Operators, Part 2"

3:30 PM     Statistics Seminar     445 MSc
Solomon HARRAR, BGSU
"MANOVA Under Non-Normality"
ABSTRACT:  Common asymptotics for MANOVA is when number of
replications per treatment are large and  number treatments
is fixed. In this talk, we consider the case when number of
treatments tends to infinity but sample sizes per treatments
are fixed. As it turns out, the null distribution of MANOVA
test statistics remain invariant to the distribution of the
errors if the number of treatments is large. However, such
stability does not hold if the sample sizes per treatment are
not equal. We will also see that the non-null distributions
are not robust even if the departure is only towards elliptically
contoured distributions.

Tuesday, November 11, 2003

Veteran's Day - No Classes - Offices Closed

Wednesday, November 12, 2003

12:00 PM    Advisory Committee Meeting   458 MSc

3:30 PM     Undergraduate Committee Meeting   459 MSc

Thursday, November 13, 2003

9:30 AM      Probability Seminar   447 MSc
G. Jay KERNS, BGSU
"Exchangeability and de Finetti's Theorem"

2:30 PM     Algebra Seminar     459 MSc
"A Proof of Burnside's Theorem (Part 2)"

Friday, November 14, 2003

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   400 MSc
"Techniques of Integration"

3:30 PM     Refreshments prior to Colloquium begin at 3:30 PM in Lounge

3:45 PM     COLLOQUIUM   Talk begins   459 MSc
Dr. Xinping CUI, University of California - Riverside
"Quantitative Trait Linkage of S. Cerevisiae Gene
Expression Data"
ABSTRACT:  The combination of genomic mismatch scanning and cDNA
microarray provides the possibility of parallelly mapping loci
responsible for heritable differences in gene expression on a
genome-wide scale.  However, such study suffered from an enormous
quantity of data with significant amount of noise.  In addition,
multiple testing problems become a serious concern.  To build
accurate linkage maps, we developed a comprehensive statistical
framework including: (1) data normalization, (2)  missing data
imputation,  (3)  identification of heritable genes using modified
ANOVA model,  (4)  cluster analysis of heritable genes, and  (5)
novel linkage analysis of these clusters in which multiple tests have
been accounted for.  This protocol was applied to map the genetic
origins of the heritable molecular phenotype form a cross of two
unrelated yeast strains.  We found 12 clusters linked to HO locus on
chromosome 4(p = 0.0001) and four clusters linked to both HO locus
and MDS allele of CST13 on chromosome 2(p = 0.0002).  Locating the
same loci for both macro phenotype and gene expression pattern
strongly suggests this systematic analysis can be generally applied
to understand the genetic basis of phenotypic diversity.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

November 17 - 23, 2003

Monday, November 17, 2003

3:30 PM     Analysis Seminar     459 MSc
Bill ROLLI, BGSU
"The Schmidt Operator and Frames"

3:30 PM     Statistics Seminar     445 MSc
Jin XU, BGSU
"Improved Confidence Intervals for the Mean
Value of Response Function in Generalized
Linear Models"
ABSTRACT:  Confidence intervals for the mean value of response
function in generalized linear models are proposed to improve
the accuracy of the approximation when the distribution of
response is nonnormal or the sample size is moderate. The
correction will leave the approximation error up to  order of
$\o(n^{(-1)})$ for both one-sided and two-sided confidence
intervals. Monte Carlo examples are demonstrated to show the
performance with comparison to the classical methods.

Tuesday, November 18, 2003

3:30 PM     Department Meeting   459 MSc
AGENDA:  Updating the Department's Unit Plan

Wednesday, November 19, 2003

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

Thursday, November 20, 2003

9:30 AM      Probability Seminar   447 MSc
Hope BARBERA, BGSU
"Mixing by Discrete Random Velocity Fields"

2:30 PM     Algebra Seminar     459 MSc
Douglas PUHARIC, BGSU
"Fullerene Polyhedra"

Friday, November 21, 2003

12:30 PM    Calculus Seminar   400 MSc
"Techniques of Integration"

3:30 PM     COLLOQUIUM   Refreshments at 3:30 PM in Lounge

3:45 PM     COLLOQUIUM   Talk begins   459 MSc
Dr. Don WHITE, University of Toledo
"Modeling Effects of Agent Combinations using Nonlinear
Mixture Experiment Models"

ABSTRACT:  The ability to effectively model the effects of chemical
agents has obvious applications in both pharmacology and toxicology.
In both fields, it is increasingly important to extend such modeling
to multiple agents.  Examples include exploring combinations of
cancer drugs or antibiotics, identifying efficacious combinations of
ingredients in herbal remedies such as green tea, and determining the
effects of exposure to multiple toxic agents such as those present at
toxic waste facilities or those that may be at the root of the Gulf
War Syndrome.  The chief aim of a statistical study such as this is
usually to enhance treatments by identifying combination ratios that
possess medically and statistically significant synergism.  Previous
approaches to modeling combined effects were limited to two compounds
and relatively simple relationships.  In most cases, they also lacked
adequate statistical justification.  In part by enlisting the aid of
mixture experiment methodologies, we introduce a new approach that
solves most, if not all, of these challenges.  We will look at
applications with more than two compounds, compounds having no effect
singly but rather enhancing the effects of other agents, and complex
patterns of synergism and antagonism.  We will also discuss the
interplay of these methods with the usual statistical ingredients of
experimental design, descriptive statistics, and statistical
inference.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

December 1 - 7, 2003

Monday, December 1, 2003

3:30 PM     Analysis Seminar     459 MSc
Lynette BOOS, BGSU
"The Oka-Weil Approximation Theorem"

3:30 PM     Statistics Seminar     445 MSc
Dhanuja KASTURIRATNA, BGSU
"Unbiased Estimation of Some Multivariate
Probability Densities and Related Functions"
by S. G. Ghurye and Ingram Olkin
ABSTRACT:  Suppose that $(X_1,\ldots,X_n)$ is a sample of
independent observations on a population with density
$p_\theta(x),\theta \in \Theta$ and $S(X_1,\ldots,X_n)$ is
a complete and sufficient statistic based on this sample.
If $\{p_\theta(x),\theta \in \Theta\}$ has an unbiased
estimator, then the conditional density (if it exists) of
$X_1\S(X)1,\ldots,X_n)$ evaluated at $x$ is the UMVU estimator
of $\{p_\theta(x),\theta \in \Theta\}$.  Two methods of
computation have been used in this context:
1) the conditional density of $X_1/S$ may be obtained
directly from the joint density of the sample;
2) alternatively, under suitable conditions, it may be
obtained from the conditional cdf by differentiation,
$\partial/\partial x)P_\theta \{X_1 \leq x/S\}$.
Both procedures involve the computation of conditional
distributions, which might be cumbersome.  However, it can
happen in some problems that there exist methods specifically
suited to those problems which are simpler than the general
procedures indicated above.  In this paper, the authors treat
a class of such problems.

Tuesday, December 2, 2003

3:30 PM      Tenured/Tenure Track Faculty Meeting   459 MSc
AGENDA:  Unit Plan

Wednesday, December 3, 2003

3:30 PM      Graduate Committee Meeting   400 MSc

3:30 PM      Undergraduate Committee Meeting   459 MSc

Thursday, December 4, 2003

9:30 AM      Probability Seminar   447 MSc
TBA

2:30 PM     Algebra Seminar     459 MSc
TBA

Friday, December 5, 2003

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   400 MSc
"Techniques of Integration"

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

December 8, 2003 - January 12, 2004

Monday, December 8, 2003

3:30 PM     Statistics Seminar     445 MSc
Keshav JAGANNATHAN, BGSU
"Empirical Characteristic Functions"

Tuesday, December 9, 2003

3:30 PM     Tenured/Tenure Track Faculty Meeting   459 MSc
AGENDA:  Unit Plan

Wednesday, December 10, 2003

12:00 PM    Advisory Committee Meeting   458 MSc

3:30 PM     Undergraduate Committee Meeting     400 MSc

Thursday, December 11, 2003

9:30 AM      Probability Seminar   447 MSc
Agata KORPAS, BGSU
"Self-Similarity of Limiting Processes"

2:30 PM     Algebra Seminar     459 MSc
Dr. Sergey SHPECTOROV , BGSU

Friday, December 12, 2003

Last Day of Classes for Fall Semester 2003

2:00P-4:00P     Department Holiday Gathering   459 MSc

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

January 12 - 19, 2004

Monday, January 12, 2004

3:30 PM     Statistics Seminar     459 MSc
Preliminary Meeting

Tuesday, January 13, 2004

Wednesday, January 14, 2004

3:30 PM     Lukacs Lecture     459 MSc
Dr. Leandro PARDO, Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, January 15, 2004

Friday, January 16, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

January 19-25, 2004

Monday, January 19, 2004

NO CLASSES/OFFICES CLOSED - Martin Luther King Day

Tuesday, January 20, 2004

Wednesday, January 21, 2004

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, January 22, 2004

Friday, January 23, 2004

11:30 AM    Graduate Committee Meeting   459 MSc

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   459 MSc
Dr. Dale WINTER, BGSU
"Teaching Techniques of Integration"

3:30 PM     COLLOQUIUM Refreshments at 3:30 PM in Lounge

3:45 PM     COLLOQUIUM   Talk begins   459 MSc
Dr. Gabor J. SZEKELY, BGSU
"Student's t-test for Scale Mixture Errors"
ABSTRACT:  Generalized t-tests are constructed under weaker than
normal conditions.  First we assume the errors are scale mixtures of
normal random variables and compute the critical values of the
suggested s-test.  Our s-test is optimal in the sense that if the
level is at most alpha, the s-test provides the minimal critical
values.  The s-test is a t-type test but its degree of freedom should
be reduced depending on alpha.  the s-test is applicable for many
heavy tailed errors e.g. in bioinformatics (microarray analysis) and
in the stochastic volatility geometric Brownian motion model for
stock prices.  (This model leads to a more realistic Black-Scholes
type option price formula.)  The assumption on the error distribution
can be made even weaker supposing only that the error distribution is
symmetric and unimodal.  The results also show that the usual
confidence intervals of typical "media statistics" are not quite
reliable.  This was the topic of my recent invited talk in Montreal
(McGill University).

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

January 26 - February 1, 2004

Monday, January 26, 2004

1:30 PM     Undergraduate Committee Meeting   400 MSc
AGENDA:  Prerequisites and placement into math courses.

3:30 PM     Algebra Seminar   400 MSc
Dr. Warren Wm. McGOVERN, BGSU
"Density Topology on the Reals"

Tuesday, January 27, 2004

3:30 PM     Department Meeting   459 MSc

Wednesday, January 28, 2004

1:00P - 4:00P   Major Mania   OLSC 101

2:30 PM     Analysis Seminar   459 MSc
Rebecca SANDERS, BGSU
"Hypercyclicity and Supercyclicity in the Weak Topology"

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, January 29, 2004

Friday, January 30, 2004

11:30 AM    Graduate Committee Meeting   459 MSc

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   459 MSc
"Rates of Change"

3:30 PM     COLLOQUIUM Refreshments at 3:30 PM in Lounge

3:45 PM     COLLOQUIUM   Talk begins   459 MSc
Dr. Chawne KIMBER, Lafayette College
"Clean subrings of  C(X)"

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

February 2 - 8, 2004

Monday, February 2, 2004

1:30 PM     Undergraduate Committee Meeting   400 MSc
AGENDA:  Prerequisites for math courses and Math 129, 130.

3:30 PM     Algebra Seminar   400 MSc
Michelle KNOX, BGSU
"Continuous Functions and the Density Topology I"

Tuesday, February 3, 2004

Wednesday, February 4, 2004

2:30 PM     Analysis Seminar   459 MSc
Bill ROLLI, BGSU
"Frames and the Singular Value Decomposition"

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, February 5, 2004

Friday, February 6, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   459 MSc
"Chain rule and tangent lines and rates of change"

3:30 PM     COLLOQUIUM Refreshments at 3:30 PM in Lounge

3:45 PM     COLLOQUIUM   Talk begins   459 MSc
Dr. Ruhan ZHAO, University of Toledo
"Weighted Composition Operators on the Bergman Space"
ABSTRACT:  We characterize bounded, compact and Schatten class
weighted composition operators on the Bergman space  L^2_a  by using
generalized Berezin transforms.  An estimate of the essential norms
of weighted composition operators on the Bergman space is also given.
Most of our results remain true for the Hardy space and weighted
Bergman spaces.  This is a joint work with Zeljko Cuckovic.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

February 9 - 15, 2004

Monday, February 9, 2004

1:30 PM     Undergraduate Committee Meeting   400 MSc
TOPICS:  Prerequisites for 339, 402, 403, 401 and other issues.

3:30 PM     Algebra Seminar   400 MSc
Michelle KNOX, BGSU
"Continuous Functions and the Density Topology II"

Tuesday, February 10, 2004

Wednesday, February 11, 2004

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, February 12, 2004

Friday, February 13, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   459 MSc
"Creating and Printing Graphs"
TOPICS:  Software, hardware, projection, and printing issues.  Hands on.

3:30 PM     COLLOQUIUM Refreshments at 3:30 PM in Lounge

3:45 PM     COLLOQUIUM   Talk begins   459 MSc
Dr. Tong SUN, BGSU
"Delay Differential Equations"
ABSTRACT:      Delay differential equations are found in the
mathematical modeling of many sciences and engineering applications,
such as biology and automatic control. In this talk, we will
introduce the delay differential equations with a few examples,
show some of the interesting behaviors of the solutions caused
by the delay, and mention the mathematical tools needed for the
research of these problems. The talk is mostly for the general
audience, not for specialists.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

February 16 - 22, 2004

Monday, February 16, 2004

3:30 PM     Algebra Seminar   400 MSc
Dr. Sergey SHPECTOROV, BGSU
"Computations with Riemann Surfaces"

Tuesday, February 17, 2004

Wednesday, February 18, 2004

2:30 PM     Analysis Seminar   459 MSc
Dr. James LESKO, Grace College & BGSU
"Sums of Harmonic-Type Series"

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, February 19, 2004

Friday, February 20, 2004

11:30 AM    Graduate Committee Meeting   459 MSc

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   459 MSc
TOPIC:  Graphs in TeX (also using MatLab) and a start on related topics.

3:30 PM     COLLOQUIUM Refreshments at 3:30 PM in Lounge

3:45 PM     COLLOQUIUM   Talk begins   459 MSc
Dr. So-Hsiang CHOU, BGSU
"Modified Raviart-Thomas Spaaces"

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

February 23 - 29, 2004

Monday, February 23, 2004

1:30 PM     Undergraduate Committee Meeting   400 MSc
TOPICS:  New Math 115 textbook; Math 095 and 112 prerequisites;
scholarship selection process; Math 129 and the College of Technology

3:30 PM     Algebra Seminar   400 MSc
Dr. Sergey SHPECTOROV, BGSU
"Computations with Riemann Surfaces, Part II"

Tuesday, February 24, 2004

Wednesday, February 25, 2004

2:30 PM     Analysis Seminar   459 MSc
Dr. Ruhan ZHAO, University of Toledo
"Weighted Composition Operators"

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, February 26, 2004

Friday, February 27, 2004

PLEASE NOTE WE HAVE TWO COLLOQUIA TODAY (see below for details)

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   459 MSc
Dr. Dale WINTER, BGSU
"Related Rates"

**2:00 PM     COLLOQUIUM 1 Refreshments at 2:00 PM in Lounge**

2:30 PM     COLLOQUIUM 1     Talk begins   459 MSc
Dr. M. L. AGGARWAL, University of Memphis
"Optimal Fractional Factorial Plans Using Finite
Projective Geometry"
ABSTRACT:  Fractional Factorial Plans are commonly used in
experiments where a large number of factors have to be studied.
Various aspects of these Plans have been studied in the literature.
Different methods of construction of these Plans are also available
in the literature.  Bose (1947) used Finite Projective Geometry  PG(r
- 1,m)  over  GF(m)  for the construction of confounded factorial
experiments by translating his problem into equivalent geometrical
problem now known as "Packing Problem".  We will construct optimal
fractional factorial plans for the estimation of mean, main effects
and specified two-factor interactions using finite projective
geometry.

**3:30 PM     COLLOQUIUM 2 Refreshments at 3:30 PM in Lounge**

3:45 PM     COLLOQUIUM   Talk begins   459 MSc
Dr. Barbara MOSES, BGSU
"COSMOS: Center Of Science and Mathematics education:
Opportunities for Success"
ABSTRACT:  This collaborative effort ties together businesses, K-12
schools,
and 2- and 4-year institutions with the goal of enhancing math and science
education.  Partners participate in a myriad of activities, ranging from
establishing new Future Teacher of America clubs in high schools to action
research projects between math and physics teachers.  Nationally-known
speakers have encouraged partners to pursue more inquiry-based lessons.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

March 1 - 14, 2004

Monday, March 1, 2004

3:30 PM     Algebra Seminar   400 MSc
Dr. Sergey SHPECTOROV, BGSU
"Computations with Riemann Surfaces, Part III"

Tuesday, March 2, 2004

Wednesday, March 3, 2004

2:30 PM     Analysis Seminar   459 MSc

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, March 4, 2004

Friday, March 5, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in the March 15-21 calendar listing**

12:30 PM    Calculus Seminar   459 MSc

Saturday, March 6, 2004 - Sunday, March 14, 2004
**SPRING BREAK**

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

March 15 - 21, 2004

Monday, March 15, 2004

1:30 PM     Undergraduate Committee Meeting   400 MSc
TOPICS:  Scholarships; Arithmetic skills test; Degree requirement
exceptions; Credit limits for Math 131, 134, 135 and 122, 128, 130;
Math 313; Math 233 as a co-requisite for Math 441

3:30 PM     Algebra Seminar   400 MSc
Dr. Warren Wm. McGOVERN, BGSU
"Neat Rings"

Tuesday, March 16, 2004

3:30 PM     Tenured Faculty Meeting     459 MSc

Wednesday, March 17, 2004  (St. Patrick's Day)

1:30 PM     Special Calculus Seminar Presentation     459 MSc
Professor V. Frederick RICKEY, USMA and formerly BGSU
"History of Mathematics and Calculus"

2:30 PM     Analysis Seminar   459 MSc
Lynette BOOS, BGSU

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, March 18, 20094

Friday, March 19, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   459 MSc
Dr. Dale WINTER, BGSU
"The Related Rates Problem Competition"

3:30 PM     COLLOQUIUM Refreshments at 3:30 PM in Lounge

3:45 PM     COLLOQUIUM   Talk begins   459 MSc
Professor Fred Hoppe, McMaster University
"Estimation of Similarity Indices for Student Responses on
Multiple Choice Exams"

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

March 22-28, 2004

Monday, March 22, 2004

1:30 PM     Undergraduate Committee Meeting   400 MSc

3:30 PM     Algebra Seminar   400 MSc
Dr. Rolf GRAMLICH, University of Darmstadt
"Phan-type Theory"

Tuesday, March 23, 2004

Wednesday, March 24, 2004

2:30 PM     Analysis Seminar   459 MSc
Dr. James P. LESKO, Grace College & BGSU
"Using Polygamma Functions to Evaluate Series with
Rational Terms"

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, March 25, 2004

Friday, March 26, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:00 PM    MAA Ohio Section Meeting begins at
University of Cincinnati (see http://www.maa.org/Ohio)

3:30 PM     COLLOQUIUM Refreshments at 3:30 PM in Lounge

3:45 PM     COLLOQUIUM   Talk begins   459 MSc
Professor Leandro PARDO, Univ Complutense of Madrid, Spain
BGSU Distinguished Lukacs Visiting Professor
"Phi-divergence Measures and Logistic Regression Models"
ABSTRACT:  We present some results about inference based on
Phi-divergence measures, under assumptions of logistic regression
models. The minimum Phi-divergence estimator, which is seen to be a
generalization of the maximum likelihood estimator is considered.
This regression models fitting the logistic regression model,
residuals and dimensional reduction.  Finally, an extension is
presented when we consider a multinomial response instead of a binary
response.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 5 - 11, 2004

Monday, April 5, 2004

3:30 PM     COLLOQUIUM   459 MSc   Refreshments precede talk
Dr. Narasimha SASTRY, Indian Statistical Institute
"Codes Associated With Generalized Polygons"

3:30 PM     Personnel Committee Meeting   458 MSc

Tuesday, April 6, 2004

12:00 PM    Advisory Committee Meeting   458 MSc

3:30 PM     Personnel Committee Meeting   458 MSc

Wednesday, April 7, 2004

2:30 PM     Analysis Seminar   459 MSc
George TURCU, BGSU

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, April 8, 2004

Friday, April 9, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar   459 MSc
Dr. Dale WINTER, BGSU
"Min-Max Problems"

3:30 PM     COLLOQUIUM Refreshments at 3:30 PM in Lounge

3:45 PM     COLLOQUIUM   Talk begins   459 MSc
Dr. James P. LESKO, Grace College and BGSU
"Sums of Harmonic-type Series"
ABSTRACT:  We investigate series with terms of the form
(a_n)/n,where (a_n) is a repeating sequence of integers; we call
these harmonic-type series.  We will look at various techniques for
evaluating harmonic-type series, and show that every harmonic-type
series can be evaluated using properties of Euler's Psi function.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 12 - 18, 2004

Monday, April 12, 2004

3:30 PM     Algebra Seminar   400 MSc
TBA

Tuesday, April 13, 2004

Wednesday, April 14, 2004

11:30 AM    Graduate Committee Meeting   400 MSc

2:30 PM     Analysis Seminar   459 MSc
George TURCU, BGSU
"The Linear Fractional Hypercyclicity Theorem"

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, April 15, 2004

11:30 AM    Personnel Committee Meeting   400 MSc

1:30 PM     Dissertation Defense   459 MSc
William J. ROLLI
"Frames and Operator Decompositions in Hilbert Spaces"

Friday, April 16, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:30 PM    Calculus Seminar (last one)   459 MSc
"Why do hyperbolic functions"
(Can you have a bicycle with square wheels?)

3:30 PM     COLLOQUIUM Refreshments at 3:30 PM in Lounge

3:45 PM     COLLOQUIUM   Talk begins   459 MSc
Dr. Ron SOLOMON, Ohio State University
"Semisimple and Unipotent Elements in Finite Groups"
ABSTRACT:  Traditionally the concepts of semisimple and unipotent
elements arise in the context of linear groups.  However it is
possible to define the notions of semisimple and unipotent elements
for arbitrary finite groups in a way that almost coincides with the
traditional notion on the set of finite classical linear groups.  I
will explain these definitions and the fundamental role they play as
organizing principles in the study of finite simple groups.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 19 - 25, 2004

Monday, April 19, 2004

1:30 PM     Undergraduate Committee Meeting   400 MSc

3:30 PM     Algebra Seminar   400 MSc
Nate IVERSON, BGSU

3:30 PM     COLLOQUIUM     459 MSc
Dr. Javier GOMEZ-PEREZ, Universidad de Le=F3n, Spain
"Topologies, ring norms and algebra norms on algebras
of continuous functions"
ABSTRACT: Let C(X) be the algebra of all real-valued continuous functions
on a completely regular space X, and C*(X) the subalgebra of bounded
functions. An intermediate algebra A between C*(X) and C(X) is any
subalgebra of C(X) that contains C*(X). Some different topologies could
be defined as well in C(X) as in any intermediate algebra. Here we
consider what we call the mA-topology, defined in a similar way as the
m-topology is defined on C(X).

The study of this topology gives the answer to a question related to the
problem of distinguish between two different families of intermediate
which have a common property related with its order structure, and this
distinction is described in terms of "ring normability".

This talk also deals with the problem of the existence of algebra norms
on algebras of continuous functions It is known that if X is a
nonpseudocompact space, then C(X) does not have a normed algebra
norm. The same property is shared by the intermediate algebras that
contain unbounded elements.  Even more, there is a broader class of
subalgebras of C(X) that have not a normed algebra norm.

Tuesday, April 20, 2004

Wednesday, April 21, 2004

2:30 PM     Analysis Seminar   459 MSc
George TURCU, BGSU

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, April 22, 2004

11:30 AM    Personnel Committee Meeting   458 MSc

Friday, April 23, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

Saturday, April 24, 2004

1:00 PM     KME Initiation Ceremony
Towers Restaurant (Reservations required by April 20)

Sunday, April 25, 2004

Last week of regular classes (April 26 - 30)!!

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 26 - May 2, 2004

Last Week of Spring Semester Classes
**Be Sure to Announce to your classes exactly when
and where your final exams will be next week.**

Monday, April 26, 2004

9:30 AM     Dissertation Defense     459 MSc
Jin XU
"Robustness Study of Some Multivariate Tests in
Generalized Linear Models"

1:30 PM     Undergraduate Committee Meeting   400 MSc

3:30 PM     Algebra Seminar   400 MSc
Nate IVERSON, BGSU
"An Introduction to the Mathematics of Juggling"
ABSTRACT:  We will look at some preliminary combinatoric results,
discussed by Polster , concerning how to "count " the number of
juggling patterns.  We will also look at some  special semigroups
(monoids) inside of the symmetric group on the integers.

Tuesday, April 27, 2004

Wednesday, April 28, 2004

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, April 29, 2004

11:30 AM    Dissertation Defense   459 MSc
Solomon HARRAR
"Linear Model Under Non-normality"

Friday, April 30, 2004

11:30 AM    Graduate Committee Meeting   459 MSc

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

5:00 PM     Graduate Student Senate & Shanklin Awards Ceremony
202B BTSU

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 26 - May 2, 2004

Last Week of Spring Semester Classes
**Be Sure to Announce to your classes exactly when
and where your final exams will be next week.**

Monday, April 26, 2004

9:30 AM     Dissertation Defense     459 MSc
Jin XU
"Robustness Study of Some Multivariate Tests in
Generalized Linear Models"

1:30 PM     Undergraduate Committee Meeting   400 MSc

3:30 PM     Algebra Seminar   400 MSc
Nate IVERSON, BGSU
"An Introduction to the Mathematics of Juggling"
ABSTRACT:  We will look at some preliminary combinatoric results,
discussed by Polster , concerning how to "count " the number of
juggling patterns.  We will also look at some  special semigroups
(monoids) inside of the symmetric group on the integers.

Tuesday, April 27, 2004

Wednesday, April 28, 2004

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, April 29, 2004

11:30 AM    Dissertation Defense   459 MSc
Solomon HARRAR
"Linear Model Under Non-normality"

Friday, April 30, 2004

11:30 AM    Graduate Committee Meeting   459 MSc

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

5:00 PM     Graduate Student Senate & Shanklin Awards Ceremony
202B BTSU

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Cyndi.

Previous calendars are available here.

/ / Disclaimer

Weekly Calendar

The Bowling Green State University Mathematics and Statistics Colloquium Series Fall 2004 Mathematical Sciences Building, Room 459

September 10
Arjun Gupta, Bowling Green State U.
"Taming of Skewness (Skew-Symmetric Models in Statistics)"

ABSTRACT Recently, there has been rather intense research activity related to various forms of extensions of standard parametric family of distributions to obtain more flexible classes, possibly retaining at least some of the appealing formal properties of the original family. While this exercise makes sense also in the scalar case, it is the multivariate setting that provides the more interesting and stimulating context, since here only a limited number of alternatives to the multivariate normal family are currently in use. In this talk, first the univariate skew-normal distribution and some of its properties, including the result that the square of a skew-normal random variable is chi-square, will be given. A characterization result, which is a generalization of a well-known result is given. Two applications to the stock returns data and the data on twins will be presented. Then a skew multivariate normal distribution will be defined and its properties will be studied in some detail. A stochastic representation of the skew multivariate normal random vector will be given which is useful for computer simulation. Further generalization to the matrix case will be indicated and some unsolved problems in this area will also be pointed out.

September 17, 2004
W. Charles HOLLAND, Bowling Green State University
"Small Varieties of Lattice-Ordered Groups and MV-Algebras"

ABSTRACT Lattice-ordered groups have been studied for more than a hundred years for their intrinsic interest, and because of their connections to other subjects such as "soft" analysis, and measurement theory (in social sciences). MV-algebras are algebraic models of multi-valued logic, which has applications in quantum mechanics, quantum computing, and similar areas. It has recently been discovered that there is an intimate connection between MV-algebras and lattice-ordered groups. In this talk, we will discuss that connection, and the implications this has for future research in the area.

September 24, 2004
Ray Heitger, Bowling Green State University
"Parents Preparing Preschool Pupils"

ABSTRACT I will discuss some ideas I have developed during 39 years in the classroom (all anecdotal), will look at some of the existing educational problems, will look at what some are doing to solve them, and suggest some areas of research for mathematics educators. Public schools really are doing a great job! Blaming our educational problems on schools is not where the true problem lies. I feel that parents need to become full partners with the academic community in accepting responsibility and assist in preparing students for an academic life.

October 1, 2004
Davd Hemmer, University of Toledo
"Specht module filtrations for representations of symmetric group"

ABSTRACT The representation theories of the symmetric group and general linear group have been closely related since the work of Schur in the early 1900's. This talk will illustrate a recent application of Schur's ideas in joint work with Dan Nakano. The complex irreducible representations of the symmetric group are called Specht modules. In characteristic p, the Specht modules may no longer be irreducible. Certain modules (e.g. Young modules) are known to have filtrations where the quotients are Specht modules. Unfortunately, the multiplicities may depend on the choice of filtration, i.e. there is no Jordan-Holder type'' theorem. This is in stark contrast to the situation for the general linear group, where the corresponding notion is of a good filtration.'' Not only are the multiplicities in such a filtration well-defined, but there is a nice cohomological criterion for when such a filtration exists and a formula for the multiplicities. We use the Schur and inverse Schur functors to demonstrate the situation for the symmetric group is much better than previously believed. Namely, for primes p>3 the multiplicities in a filtration by Specht modules are well-defined. We give a criterion for such a filtration to exist, and a formula for the multiplicities. As a corollary we give a new construction of Young modules, analogous to the Ringel-Donkin construction of tilting modules.The talk will be accessible to graduate students and advanced undergraduates.

October 8, 2004
NO COLLOQUIUM, Fall Break Weekend

October 15, 2004
Truc T. Nguyen, Bowling Green State University
"Exact EDF goodness-of-fit tests for inverse Gaussian distributions"

ABSTRACT Several characterizations of inverse Gaussian distributions are studied. Exact EDF goodness-of-fit tests for inverse Gaussian distributions using these characterization results as transformations are constructed. The powers of these tests at several alternative distributions are estimated by Monte-Carlo method.

October 22, 2004
Daniel Mihalko, Western Michigan University
"On Similarity Indices for Comparing Clustering Results"

ABSTRACT Many similarity indices have been introduced in the literature for comparing the results of different clusterings of the same data set. This work shows that after correction for chance agreement, many of these indices are actually equivalent. Potential uses of similarity indices in the analysis of gene expression experiments will also be discussed.

October 29, 2004
Dale H. Mugler, University of Akron
"Wavelets and the Time-Frequency Analysis of Musical Instruments"

ABSTRACT What makes the sound of a horn playing a middle C seem different from the sound of a flute playing the same note? Nearly everyone likes to listen to some kind of music, but rarely do we think of a piece we listen to as a time-frequency function. Fourier analysis, based on sines and cosines of different frequencies, has been used for many years to analyze the spectrum of a signal. But there is a relatively new mathematical tool that has taken over in many related areas, and that involves the theory of wavelets. Wavelets provide a basis made of functions that are non-zero only on a small time interval, yet represent very general functions. This talk will be a general overview to introduce the theory of wavelets and many of its applications, including the new JPEG 2000 standard for image compression, but will concentrate on time-frequency representations.

November 5, 2004
Richard Little, Baldwin Wallace College & BGSU "An Introduction to and Call for Help With the Ohio Resource Center for Mathematics, Science and Reading (Notice the disciplines are NOT in alphabetical order!)"

ABSTRACT The ORC is a virtual resource sponsored by the Ohio Board of Regents for "promising practice" and "best practice" lesson plans that are aligned with the national and Ohio standards in these three disciplines. We will introduce the plethora of lessons presently available on or via the ORC site for grades K -> 12 classes. There is a distinct dearth of lesson plans for college classes now available. Your help is needed in locating and developing more lesson plans which are relevant to the standards and which promote inquiry strategies for teaching the concepts. Of course we want these additional lesson plans to be attractive to college/university teachers so that they might try them in their classes which include prospective K -> 12 teachers. Please join us for the colloquium and join in the pursuit of more college level resources on the ORC site.

November 12, 2004
NO COLLOQUIUM

November 19, 2004
Michael J. Collins, Oxford University and Ohio State University "Bounds for Finite Groups of Matrices"

ABSTRACT In 1878, Jordan showed that there was a function f on the natural numbers such that, if G is a finite group of complex n x n matrices, then G has a normal abelian subgroup of index bounded by f(n). Explicit functions were given by Frobenius and Schur, but they are very far from optimal, and it was only after the classification of finite simple groups was announced that a near-best result was announced by Weisfeiler; using more powerful group theoretic methods in place of his analytic estimates, precise bounds can now be given. I will discuss these and related questions.

November 26, 2004
NO COLLOQUIUM - Thanksgiving Break

December 3, 2004
Theodore Chang, University of Virginia "Statistics of Tectonic Plate Reconstructions"

ABSTRACT In 1960, Hess proposed the theory of sea floor spreading: that new ocean crust is formed by magma welling up from the interior of the earth and cooling as it reached the surface at mid-ocean ridges. This crust is carried across the bottom of the ocean floor until it is subducted in trenches. Thus the surface of the earth is, to first approximation, composed of tectonic plates which move rigidly away from the mid-ocean ridges. The molten magma acquires a magnetization whose direction depends upon the Earth's magnetic field at the time that it reaches the surface. Periodically in the past the North magnetic pole has flipped to close to the South geographic pole, resulting in the so called marine magnetic anomaly lineations. These marine magnetic anomaly lineations provide the best information to reconstruct the past position of tectonic plates. We will discuss the statistical errors in these reconstructions. The relative position of two tectonic plates at a fixed time in the past is given by a 3-dimensional rotation matrix. Similar statistical issues arise in the estimation of an unknown 3 dimensional coordinate system, a problem which has arisen in other engineering contexts and in image analysis. We will focus on some general statistical principles that apply in this group of problems. In estimating these reconstructions, the shapes of the lineations become a nuisance parameter and a parsimonious model for their shapes becomes desirable. Previous models assumed a piecewise great circular shape, however, as the data density has increased, these models become untenable. We will discuss some recent results on the use of an Ornstein-Uhlenbeck process to model these shapes. No geophysical background will be needed. If time allows, we will show that statisticians can also have fun with some slides of a geophysical data collection cruise in the Indian Ocean.

January 21, 2005
Ignacio Zalduendo, Universidad Torcuato Di Tella and Kent State University "Orthogonally Additive polynomials over $C(K)$"

ABSTRACT Two continuous functions on the compact set $K$ are called orthogonal if their product is zero. A continuous homogeneous polynomial over $C(K)$ is said to be orthogonally additive if $P(u+v)=P(u)+P(v)$, for all orthogonal $u$ and $v$. In two recent papers Benyamini-Llavona-Lassalle and Perez-Villanueva characterize such polynomials using Borel measures on $K$. The two proofs are different and both very technical. In this talk we provide a third proof of the result. Our proof uses the Aron-Berner extension, a linearization procedure (which will be explained in the talk) and elementary topology and functional analysis. The proof is far shorter than those mentioned above.

Gennady Puninskiy, Ohio State University-Lima "Pure-Injective Modules Over String Algebras"

ABSTRACT String algebras form a class of finite dimensional algebras over a field $k$ which are tame, that is, it is possible to classify indecomposable finite dimensional modules over them. An example of a string algebra is a Gelfand-Ponomarev algebra $G_{2,3}$ which is isomorphic to the factor of the polynomial ring $k[x,y]$ by the ideal generated by $xy$, $x^2$, and $y^3$. Pure-injective modules over string algebras can be defined as direct summands of direct products of finite-dimensional modules. For instance, we usually have pure-injective modules which are analogs of adic', Prüfer' and generic' abelian groups. In this talk we consider a classification problem of pure- injective modules over string algebras and its connections with complexity of the category of modules. For instance, we will discuss Ringel's conjectural classification of indecomposable pure-injective modules over domestic string algebras, and Schröer's conjecture that the Krull-Gabriel dimension of a domestic string algebra is finite.

March 2, 2005
V. Seshadri, McGill University "Some New Independence Properties of the Inverse Gaussian Distribution"

ABSTRACT This talk is motivated by the classical result of Tweedie about the weighted sum of reciprocals of inverse Gaussian random variables which, besides being independent of the sample mean , also follows a gamma law. The result goes as follows. Let a, t_1 , ......t_n be real positive constants. Let Y_1 , ......., Y_n be n independent inverse Gaussian random variables, such that L(Y_i) = IG (a t_i, a(t_i)^2) , i = 1,....,n. Define by b_i = [(t_i)^2 / Y_i], and c = ( T^2 / Y ) where T is the sum of all the t_i's and Y is the sum of all the Y_i's . Then we have the result that Q= a [{ b_1 + ......+ b__n} - c] is independent of Y. Moreover, Q has a chi-square law with (n-1) degrees of freedom and the law of Y, namely L(Y) = IG [aT,aT^2]. This talk explores what happens when the t_i 's are considered random. We also consider a generalization to the Generalized inverse Gaussian law. Finally we show a connection to the Wishart distribution.

March 18, 2005
Alexander Izzo, BGSU "Algebras of Functions of One Complex Variable via Several Complex Variables"

ABSTRACT Some results concerning algebras of bounded functions on a planar domain will be discussed. Some of the ingredients in the proofs, which involve a combination of techniques from functional analysis and complex analysis, will also be described. Although the results concern only functions of one complex variable, in many cases the only known proofs make essential use of several complex variables.

Nadini Kannan, University of Texas at San Antonio "Estimation of the Linear Array Model"

ABSTRACT The area of array processing has received considerable attention in the past several decades. The Array Model consists of an array of sensors used to detect the presence of one or more radiating point sources. Sensor arrays are widely used in radar and sonar, geophysics, and tomography. The main problem of interest is estimation of the parameters associated with the signals including their directions of arrival (DOA), the number of signals, and their crosscorrelations. The Array Model is highly nonlinear, and traditional estimation methods like maximum likelihood and least squares are numerically difficult. We will discuss some alternative methods of estimation of the model parameters using eigendecompositions of the sample covariance matrix. These eigenspace methods are high resolution techniques that exploit the inherent structures in the model and are computationally much more tractable then the traditional methods. We will also discuss the problem of identifying the number of signals which may be formulated as a model selection problem. Some extensions to estimating the parameters for wideband signals will also be discussed.

April 1, 2005
Pamela Richardson, University of Virginia-Richmond "Centroids of Quadratic Jordan Superalgebras"

ABSTRACT The centroid of a Jordan superalgebra consists of the natural "superscalar multiplications'' on the superalgebra. The basic examples of Jordan superalgebras are the simple Jordan superalgebras with semisimple even part, which were classified over an algebraically closed field of characteristic not 2 by M. L. Racine and E. I. Zelmanov. In this talk, we discuss the centroids of these superalgebras over a general ring of scalars.

April 8, 2005
Satish Iyengar, University of Pittsburgh "Models for Integrate-and-Fire Neurons"

ABSTRACT Stochastic models of neural activity are a well developed application in biology. Diffusion models for integrate-and-fire neurons hold a prominent place because of the many synaptic inputs to a neuron, and because these models arise out of noisy versions of differential equations for the neural membrane's electrical properties. While the probabilistic aspects of such models have been well studied, inferential and computational procedures for them are not as well developed. In this talk, I outline the physiological background leading to these models. I then describe recent progress in parameter estimation and the computational problems that arise.

April 22, 2005
Tong Sun, Bowling Green State University "Error Control in Numerical PDEs"

ABSTRACT General ideas and methods of error estimation and control in numerical solutions of partial differential equations will be discussed. That is, we are going to introduce the concepts of local error, global error, consistency, stability, convergence, and error bound. In addition, we also need to understand error propogation and error pollution. What are the mathematical tools we need to work on all these problems?

Weekly Calendar

The Bowling Green State University Mathematics and Statistics Colloquium Series Fall 2004 Mathematical Sciences Building, Room 459

Date Speaker Title
Sept. 10 Arjun Gupta
Bowling Green State U.
Taming of Skewness
(Skew-Symmetric Models in Statistics)
Sept. 17 W. Charles Holland
BGSU
Small Varieties of Lattice-Ordered Groups and MV-Algebras
Sept. 24 Ray Heitger
BGSU
Parents Preparing Preschool Pupils
Oct. 1 David Hemmer
University of Toledo
Specht module filtrations for representations of symmetric group
Oct. 8 No colloquium (Fall Break)
Oct. 15 Truc Nguyen
BGSU

Oct. 22 Daniel Mihalko

Oct 29 Dale Mugler
University of Akron
Wavelets and the Time-Frequency Analysis of Musical Instruments
Nov. 5 Richard Little
Baldwin Wallace Univeristy & BGSU
An Introduction to and Call for Help with The Ohio Resource Center for Mathematics, Science, and Reading (Notice the disciplines are NOT in alphabetical order!)
Nov. 12 Veteran's Day. No colloquium
Nov. 19 Michael Collins
Oxford University and Ohio State University
Bounds for Finite Groups of Matrices
Nov. 26 Thanksgiving. No colloquium
Dec. 3

Dec. 10 No colloquium
McGill University
Some New Independence Properties of the Inverse Gaussian Distribution
Mar. 18 A. Izzo
BGSU
Algebras of Functions of One Complex Variable via Several Complex Variables
Apr. 1 Pamela Richardson
University of Virginia-Richmond
Apr. 8 Satish Iyengar
University of Pittsburgh
Apr. 22 Tong Sun
Bowling Green State University

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
May 9 - August 21, 2005

Week of May 9 - 15, 2005

Saturday, May 14, 2005

8:30 AM		Lukacs Conference	459 MSc

Week of May 16 - 22, 2005

Monday, May 16, 2005

11:00 AM	Visiting Guest Lecture	400 MSc
Dr. Hector SALAS, University of Puerto Rico at Mayaguez
"Pathological Hypercyclic Operators"
ABSTRACT:  We exhibit a hypercyclic operator whose square is not
hypercyclic. Our operator is necessarily unbounded since a result of
S. Ansari asserts that powers of a hypercyclic bounded operator are
also hypercyclic. We also exhibit an unbounded Hilbert space operator
whose non-zero vectors are hypercyclic.

Week of May 30 - June 5, 2005

Monday, May 30, 2005

Memorial Day Holiday - Office Closed

Week of June 13 - 19, 2005

Thursday, June 16, 2005

M.S. Comprehensive Examination (Applied Stat portion)

Week of June 20 - 26, 2005

Tuesday, June 21, 2005

Comprehensive Examinations

Thursday, June 23, 2005

Comprehensive Examinations

Week of June 27 - July 2, 2005

Monday, June 27, 2005

Applied Statistics Oral Examinations

Tuesday, June 28, 2005

Week of July 4 - 10, 2005

Monday, July 4, 2005

Independence Day Holiday - Office Closed

Sunday, July 10, 2005

PMET Workshop (continues through July 17th)

Week of July 11 - 17, 2005

Monday, July 11 - Sunday, July 17, 2005

PMET Workshop

Week of August 1 - 7, 2005

Saturday, August 6, 2005

Commencement

Week of August 15 - 21, 2005

Friday, August 19, 2005

8:00 AM		Opening Day Ceremony/Meetings

1:00 PM		115 Course Meeting		400 MSc

--

Department of Mathematics & Statistics
Bowling Green State University              Phone:  419-372-2638
Bowling Green OH 43403-0221                 FAX: 419-372-6092

WWW: http://www.bgsu.edu/departments/math/faculty/faculty-dir.html#Staff

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer

BGSU Seminars

The Bowling Green State University Mathematics and Statistics Seminars Fall 2004

Monday
• 3:30 PM, Graduate Student Seminar, 400 MSc, Lynette Boos organizer

Tuesday

• 3:30 PM, Calculus Seminar, 459 MSc, Gordon Wade and Thomas Hern organizers

• 5:00 PM, Honors MATH 295 Seminar, 459 MSc, Steven Seubert organizer

Wednesday

• 3:30 PM, Statistics Seminar, 445 MSc, Arjun Gupta organizer

• 4:00 PM, Analysis Seminar, 459 MSc, Juan Bes organizer

Thursday

• 1:30 PM, Algebra Seminar, 459 MSc, Warren Wm. McGovern organizer

• 4:00 PM, Research Areas Seminar, 459 MSc, Alex Izzo organizer

Friday

• 3:45 PM, Colloquium, 459 MSc, Alex Izzo organizer

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
August 30 - September 6, 2004

Monday, August 30, 2004

3:30 PM     Graduate Student Seminar   400 MSc

Tuesday, August 31, 2004

12:00 PM    Advisory Committee Meeting   458 MSc

3:30 PM     Calculus Seminar   459 MSc

Wednesday, September 1, 2004

4:00 PM     Analysis Seminar   459 MSc
Dr. Juan BES, BGSU
"An Example of Two Operators With a
Hypercyclic Subspace, But With No Common One"

Thursday, September 2, 2004

1:30 PM     Algebra Seminar   459 MSc
Dr. W. Charles HOLLAND, BGSU
"Generating Automorphism Groups of Chains"

Friday, September 3, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

Saturday, September 4, 2004

Sunday, September 5, 2004

Monday, September 6, 2004

LABOR DAY - NO CLASSES - OFFICES CLOSED

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
September 6 - 12, 2004

Monday, September 6, 2004

LABOR DAY - NO CLASSES - OFFICES CLOSED

Tuesday, September 7, 2004

12:00 PM    Advisory Committee Meeting   458 MSc

3:30 PM     Calculus Seminar   459 MSc

5:00 PM     Honors MATH 295 Seminar   459 MSc
Dr. John CHEN, BGSU
"Winning the Lottery and Being Struck by Lightening"

Wednesday, September 8, 2004

3:30 PM     Statistics Seminar   445 MSc
Dr. John CHEN, BGSU
"Frechet Optimality and Probability Inequalities"

4:00 PM     Analysis Seminar   459 MSc
Dr. Juan BES, BGSU
"The Surjectivity Radius of Vector Valued Operators"

Thursday, September 9, 2004

1:30 PM     Algebra Seminar   459 MSc
Dr. W. Charles HOLLAND, BGSU
"Generating Automorphism Groups of Chains, Part II"

4:00 PM     Research Areas Seminar   459 MSc
Professor Gábor J. SZÉKELY, BGSU
"Uncertainty Principles"

Friday, September 10, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Refreshments Served prior to Colloquium   459 MSc

3:45 PM     Colloquium Talk Begins   459 MSc
Professor Arjun K. GUPTA, BGSU
"Taming of Skewness (Skew-Symmetric Models in Statistics)"

Saturday, September 11, 2004

Sunday, September 12, 2004

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
September 13 - 19, 2004

Monday, September 13, 2004

2:30 PM     Graduate Committee Meeting   400 MSc
AGENDA:  Summer 2005 graduate course offerings

3:30 PM     Graduate Student Seminar   400 MSc
Doug PUHARIC, BGSU

Tuesday, September 14, 2004

12:00 PM    Advisory Committee Meeting   458 MSc

3:00 PM     Calculus Seminar   459 MSc  *note special time
Dr. Dick Little, Baldwin Wallace & BGSU and Ray Heitger, BGSU
"Calculus AP Program"

5:00 PM     Honors MATH 295 Seminar   459 MSc
Dr. David MEEL, BGSU
"Theories of Mathematical Understanding:
Why do we need them?"

Wednesday, September 15, 2004

3:30 PM     Statistics Seminar   445 MSc
Professor Hanfeng CHEN, BGSU
"Median and Re-Median Methods"

4:00 PM     Analysis Seminar   459 MSc
Dr. Juan Bès, BGSU
"The Surjectivity Radius of Vector Valued Operators,
Part II"

Thursday, September 16, 2004

1:30 PM     Algebra Seminar   459 MSc
Professor Sergey SHPECTOROV, BGSU
"Embeddability of Certain Graphs in Hypercubes"

4:00 PM     Research Areas Seminar   459 MSc
Dr. Corneliu HOFFMAN, BGSU
"Groups of Transformations"

Friday, September 17, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Refreshment Served for Colloquium   459 MSc

3:45 PM     Colloquium Talk Begins   459 MSc
Professor W. Charles HOLLAND, BGSU
"Small Varieties of Lattice-Ordered Groups and MV-Algebras"

Saturday, September 18, 2004

Sunday, September 20, 2004

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
September 20 - 26, 2004

Monday, September 20, 2004

Please note the following:  Requests for individual tutoring
through the Math Lab can be submitted beginning Monday,
September 20 with an instructor signature on the request form.
Requests forms are available through the Math Department Main
Office or the Math Lab Main Office.

3:30 PM     Graduate Student Seminar   400 MSc
"A Phan-type Theorem for Orthogonal Groups"

Tuesday, September 21, 2004

12:00 PM    Advisory Committee Meeting   458 MSc

12:45PM - 4:45 PM   Preliminary Qualifying Examinations   459 MSc

5:00 PM     Honors MATH 295 Seminar   459 MSc
Professor Neal L. CAROTHERS, BGSU
"Archimedes and Pi"

Wednesday, September 22, 2004

3:30 PM     Statistics Seminar   445 MSc
Professor James H. ALBERT, BGSU
"Optimizing the Ordering of Tables with
Evolutionary Computation"

4:00 PM     Analysis Seminar   459 MSc
Dr. Juan Bes, BGSU
"The Surjectivity Radius of Vector Valued Operators,
Part III"

Thursday, September 23, 2004

12:45PM - 4:45 PM   Preliminary Qualifying Examinations   459 MSc

1:30 PM     Algebra Seminar   400 MSc  **NOTE ROOM**
Dr. Warren Wm. McGOVERN, BGSU
"Rings of Quotients of Rings of Continuous Functions"

4:00 PM     Research Areas Seminar   400 MSc  **NOTE ROOM**
Professor James H. ALBERT
"Bayesian Testing"

Friday, September 24, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Refreshment Served for Colloquium   459 MSc

3:45 PM     Colloquium Talk Begins   459 MSc
Raymond HEITGER, BGSU
"Parents Preparing Preschool Pupils"

Saturday, September 25, 2004

Sunday, September 26, 2004

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
September 27 - October 3, 2004

Monday, September 27, 2004

2:30 PM     Graduate Committee   400 MSc

3:30 PM     Graduate Student Seminar   400 MSc
"A Phan-type Theorem for Orthogonal Groups, Part II"

Tuesday, September 28, 2004

3:30 PM     Calculus Seminar   459 MSc
Dr. Dick LITTLE and Ray HEITGER
"Detailed Examination of AP Calculus Problems"

5:00 PM     Honors MATH 295 Seminar   459 MSc
Professor Sergey SHPECTOROV, BGSU
"Euclid's Fifth Postulate, the Hyperbolic
Plane and Escher"

Wednesday, September 29, 2004

3:30 PM     Statistics Seminar   445 MSc
Professor Gábor SZÉKLEY, BGSU
"Two Problems on Optimal Strategies of Games"

4:00 PM     Analysis Seminar   459 MSc
Juan MARIN, BGSU
"Dense Sets of Common Cyclic Vectors"

Thursday, September 30, 2004

1:30 PM     Algebra Seminar   459 MSc

4:00 PM     Research Areas Seminar   459 MSc
Professor Sergey SHPECTOROV
"Hypercubes, Fullerenes, and the Wythoff Kaleidoscope"

Friday, October 1, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Refreshment Served for Colloquium   459 MSc

3:45 PM     Colloquium Talk Begins   459 MSc
Dr. David HEMMER, University of Toledo
"Specht module filtrations for representations of
symmetric group"

Saturday, October 2, 2004

Sunday, October 3, 2004

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
October 4 - 10 & 11, 12, 2004

Monday, October 4, 2004

3:30 PM     Graduate Student Seminar   400 MSc
Reuben MUCHEMEDZI, BGSU
"The Binormal Model for ROC Curves"

Tuesday, October 5, 2004

3:00 PM     Calculus Seminar   459 MSc
Dr. Dick LITTLE and Ray HEITGER
"Detailed Examination of AP Calculus Problems"

5:00 PM     Honors MATH 295 Seminar   459 MSc

Wednesday, October 6, 2004

3:30 PM     Statistics Seminar   445 MSc
Professor Truc T. NGUYEN, BGSU
"The Poisson Distribution of the Two-Sided Chi
Square Goodness-of-Fit Tests"

4:00 PM     Analysis Seminar   459 MSc
Juan MARIN, BGSU
"Dense Sets of Common Cyclic Vectors, Part II"

Thursday, October 7, 2004

Friday, October 8, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

Saturday, October 9, 2004

FALL BREAK BEGINS

Sunday, October 10, 2004

FALL BREAK

Monday, October 11, 2004

FALL BREAK - No Classes

Tuesday, October 12, 2004

FALL BREAK - No Classes

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
October 11-17, 2004

Monday, October 11, 2004

FALL BREAK - No Classes

Tuesday, October 12, 2004

FALL BREAK - No Classes

Wednesday, October 13, 2004

3:30 PM     Statistics Seminar   445 MSc

4:00 PM     Analysis Seminar   459 MSc
Lynette BOOS, BGSU
"Comparing Kernels"

Thursday, October 14, 2004

1:30 PM     Algebra Seminar   459 MSc
Professor Sergey SHPECTOROV, BGSU
"TBA"

4:00 PM     Research Areas Seminar   459 MSc
Dr. Juan BES, BGSU
"Linear Maps with Dense Orbits"

Friday, October 15, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Refreshment Served for Colloquium   459 MSc

3:45 PM     Colloquium Talk Begins   459 MSc
Professor Truc T. NGUYEN, BGSU
"Exact EDF goodness-of-fit tests for inverse
Gaussian distributions"
ABSTRACT:  Several characterizations of inverse Gaussian distributions
are studied. Exact EDF goodness-of-fit tests for inverse Gaussian
distributions using these characterization results as transformations
are constructed. The powers of these tests at several alternative
distributions are estimated by Monte-Carlo method .

Saturday, October 16, 2004

2:00PM - 4:00PM   A&S Homecoming Tent
Food, Entertainment, & Fellowship before the game

Sunday, October 17, 2004

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
October 18 - 24, 2004

Monday, October 18, 2004

3:30 PM     Graduate Student Seminar   400 MSc
Juan MARIN, BGSU

Tuesday, October 19, 2004

12:00 PM    Advisory Committee Meeting   458 MSc

3:30 PM     Calculus Seminar   459 MSc
Hope BARBERA and Mary KOSHAR, BGSU
TOPIC:  The new projector and some Maple demos

5:00 PM     Honors MATH 295 Seminar   459 MSc
Professor Gábor J. SZÉKELY, BGSU
"The Book of Beautiful Proofs"

Wednesday, October 20, 2004

3:30 PM     Statistics Seminar   445 MSc
Dr. Jane Y. CHANG, BGSU, Dept. of ASOR
"Designing NimbleGen Microarrays for Statistical
Analysis of Gene Expressions"
ABSTRACT:  Genes code for protein.  Every living cell has a
full complement of all the genes.  Microarrays can measure,
en masse, the extent to which various genes are turned on (called
gene expressions) in sample cells.
With all the hype about bioinformatics, one might wonder to
what extent society has benefited from microarray research.
Applications are imminent, in the form of prognostic/diagnostic
chips and patient subgroup targeting based on gene expression
profiling.
In the past, approval of medical devices and drugs by FDA
have required statistical validation.  Whether there will be such
requirements for microarray applications will be seen shortly.  One
impediment is the inconvenience of randomly placing gene probes on
Affymetrix  neither randomize nor replicate the gene probes on
oligonucleotide microarrays.  Randomization and replication are
necessarily for the validity of statistical analyses.
In the presentation, I will report on a joint project with
Professor Jason Hsu at Ohio State, Iceland Genomics Corp., the
National Hospital of Iceland, and NimbleGen systems.  We have
statistically designed microarrays with randomization, replication,
and blocking to not only find differentially expressed genes between
low and high risk patients, but also assess sensitivity and
specificity of the microarrays.  With samples from Iceland Genomics
Corp., clinical outcomes from the National Hospital of Iceland, and
microarrays made by NimbleGen, we hope to prove the concept that
microarray applications can meet rigorous statistical requirements.

Thursday, October 21, 2004

1:30 PM     Algebra Seminar   459 MSc
Michelle KNOX, BGSU

4:00 PM     Research Areas Seminar   459 MSc
Dr. Warren Wm. McGOVERN, BGSU
"Clean Rings"

Friday, October 22, 2004

Last day to Withdraw Pass (with a signature) from classes

12:00 PM - 9:00 PM   Ohio Section MAA Meeting
John Carroll University
for the complete program, see:
http://www.jcu.edu/math/maa/

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Refreshment Served for Colloquium   459 MSc

3:45 PM     Colloquium Talk Begins   459 MSc
Dr. Daniel MIHALKO, Western Michigan University
"On Similarity Indices for Comparing Clustering Results"
ABSTRACT:  Many similarity indices have been introduced in the
literature for comparing the results of different clusterings of the
same data set.  This work shows that after correction for chance
agreement, many of these indices are actually equivalent.  Potential
uses of similarity indices in the analysis of gene expression
experiments will also be discussed.

Saturday, October 23, 2004

8:00 AM - 1:00 PM   Ohio Section MAA Meeting continues
@ John Carroll University
for program see:  http://www.jcu.edu/math/maa/

Sunday, October 24, 2004

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
October 25 - 31, 2004

Monday, October 25, 2004

3:30 PM     Graduate Student Seminar   400 MSc
Lynette BOOS, BGSU
"Operator Topologies"

Tuesday, October 26, 2004

12:00 PM    Advisory Committee Meeting   458 MSc

3:30 PM     Calculus Seminar   459 MSc
Hope BARBERA and Mary KOSHAR, BGSU
TOPIC:  The new projector and some Maple demos, continued

5:00 PM     Honors MATH 295 Seminar   459 MSc
Professor James H. ALBERT, BGSU
"Comparing Ichiro with Godzilla: Who is the Best
Japanese Player in Major League Baseball?"

Wednesday, October 27, 2004

3:30 PM     Statistics Seminar   445 MSc
Solomon CHEFO, BGSU
"Modeling Bivariate Categorical (Nominal) Reponses"

Thursday, October 28, 2004

1:30 PM     Algebra Seminar   459 MSc
Professor Sergey SHPECTOROV, BGSU
"Mathieu Groups"

Friday, October 29, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

**1:30 PM   Analysis Seminar**     459 MSc
Dr. Dale MUGLER, University of Akron
"Overview of Time-Frequency Analysis Methods"
ABSTRACT:  Traditional Fourier analysis can be easily used to tell
what frequencies are present in a signal, but not when those
frequencies occurred.  Over the years, various attempts have been
made to introduce time-frequency transforms to rectify this problem.
This seminar will
provide an overview of those techniques, including Short-Term Fourier
Transforms, the Wigner-Ville Distribution, the Choi-Williams
Distribution,
and other analysis methods, including some contrasts to the new
theory of wavelets.  Many Matlab-generated examples will be given,
and printed copies
will be included for participants.

3:30 PM     Refreshment Served for Colloquium   459 MSc

3:45 PM     Colloquium Talk Begins   459 MSc
Dr. Dale MUGLER, University of Akron
"Wavelets and the Time-Frequency Analysis of Musical
Instruments"
ABSTRACT:  What makes the sound of a horn playing a middle C seem
different from the sound of a flute playing the same note?  Nearly
everyone likes to listen to some kind of music, but rarely do we think
of a piece we listen to as a time-frequency function.  Fourier analysis,
based on sines and cosines of different frequencies, has been used for
many years to analyze the spectrum of a signal.  But there is a relatively
new mathematical tool that has taken over in many related areas, and that
involves the theory of wavelets.   Wavelets provide a basis made of
functions that are non-zero only on a small time interval, yet represent
very general functions. This talk will be a general overview to introduce
the theory of wavelets and many of its applications, including the new
JPEG 2000 standard for image compression, but will concentrate on
time-frequency representations.

Saturday, October 30, 2004

9:00AM - 12:00PM   Preview Day @ BTSU

Don't forget to turn your clocks back tonight (one hour)!!

Sunday, October 31, 2004

Daylight Savings Time Ends

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wishto be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
November 1 - 7, 2004

Monday, November 1, 2004

3:30 PM     Graduate Student Seminar   400 MSc
Ioan SECELEANU, BGSU

Tuesday, November 2, 2004      **Don't Forget To Vote**

12:00 PM    Advisory Committee Meeting   458 MSc

3:30 PM     Tenured Faculty Meeting   459 MSc

3:30 PM     No Calculus Seminar this week

5:00 PM     Honors MATH 295 Seminar   459 MSc
Professor Steven M. SEUBERT, BGSU
"MATH 395H"

Wednesday, November 3, 2004

3:30 PM     Statistics Seminar   445 MSc
Xiaojing LU, BGSU
"Exact Confidence Bounds for All Contrasts of Three
or More Regression Lines"

4:00 PM     **COLLOQUIUM (Analysis Seminar)   459 MSc**
Dr. J. Alberto CONEJERO
"Monomorphisms and Almost Open Operators"
ABSTRACT: Let X be a Banch space. It is known that the set of
invertible operators in  L(X) is open. We study two less restrictive
classes of operators, monomorphisms and almost open operators, in
L(E,F) where E and F are locally convex. We characterize the openness
of the subsets of these classes of operators in terms of the normability
of the spaces E and F. We also establish relations between these classes
of operators using the corresponding adjoint operators.

4:30 PM     Statistics Group Meeting   400 MSc

Thursday, November 4, 2004

1:30 PM     Algebra Seminar   459 MSc
Dr. Corneliu HOFFMAN, BGSU

4:00 PM     Research Areas Seminar   459 MSc
Dr. David MEEL, BGSU
"Assessing Understanding: Fact or Fantasy"

Friday, November 5, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Refreshment Served for Colloquium   459 MSc

3:45 PM     Colloquium Talk Begins   459 MSc
Dr. Richard LITTLE, Visiting Professor at BGSU
Baldwin-Wallace College  and  founding member
of the Advisory Board of the ORC
"An Introduction to and Call for Help with
The Ohio Resource Center for Mathematics,
Science, and Reading (Notice the disciplines are NOT
in alphabetical order!)
ABSTRACT:  The ORC is a virtual resource sponsored by the Ohio
Board of Regents for "promising practice" and "best practice"
lesson plans that are aligned with the national and Ohio standards
in these three disciplines.  We will introduce the plethora of
lessons presently available on or via the ORC site for grades
K -> 12 classes.
There is a distinct dearth of lesson plans for college classes
now available.  Your help is needed in locating and developing more
lesson plans which are relevant to the standards and which promote
inquiry strategies for teaching the concepts.  Of course we want
these additional lesson plans to be attractive to college/university
teachers so that they might try them in their classes which include
prospective K -> 12 teachers.
more college level resources on the ORC site.

Saturday, November 6, 2004

Sunday, November 7, 2004

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
November 8 - 14, 2004

Monday, November 8, 2004

3:30 PM     Graduate Student Seminar   400 MSc
"An introduction to Long Range Dependence (LRD)
and Fractional Brownian Motion (FBM)"

Tuesday, November 9, 2004

3:30 PM     Calculus Seminar   459 MSc
Hope BARBERA, BGSU
"MAPLE"

5:00 PM     Honors MATH 295 Seminar   459 MSc
Prof. Steven SEUBERT, BGSU
"The Cantor Set"

Wednesday, November 10, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Statistics Seminar   445 MSc
Reuben MUCHEMEDZI, BGSU
"The binormal model for ROC curves"

4:00 PM     Analysis Seminar   459 MSc
Dr. Jose Alberto CONEJERO CASARES
"Hypercyclicity for Strongly Continuous Semigroups of
Operators"

Thursday, November 11, 2004

VETERAN'S DAY - NO CLASSES - OFFICES CLOSED

Friday, November 12, 2004

No Colloquium This Week

Saturday, November 13, 2004

Sunday, November 14, 2004

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
November 15 - 21, 2004

Monday, November 15, 2004

3:30 PM     Graduate Student Seminar   400 MSc
Michelle KNOX, BGSU

Tuesday, November 16, 2004

3:30 PM     Calculus Seminar   459 MSc
Dr. Thomas HERN, BGSU
"Acceleration Vectors"

Wednesday, November 17, 2004

3:30 PM     Statistics Seminar   445 MSc
Dr. John TISAK, BGSU, Dept of Psychology
"Modeling Practical Intelligence by Statistically Equivalent
Covariance Structures"
ABSTRACT:  As exposed by Robert Sternberg, practical intelligence (or the
ability to deal with the many situations that a person might face during his
life time) is an alternative to the more common academic based intelligences,
e.g., verbal intelligence, general intelligence, and so on.  In one
application, the
use of practical intelligence in military leadership was studied.
Specifically,
practical intelligence was operationalized by the Tacit Knowledge in Military
Leadership (TKML), which is an instrument consisting of 16 scenarios with
multiple solutions.  Unfortunately because of its design, the
internal structure
of the TKML is both unknown and difficult to statistically model.
In this presentation, the variances and covariances of the items
belonging to
two scenarios of the TKML will be statistically modeled within an exploratory
factor analytic procedure in order to evaluate structure of these
items.  Subsequently
this structure will be rotated into congruence across the scenarios
by an approach that
is analogous to canonical correlations.  Notice that both of these
approaches are
statistically equivalent.  Lastly multivariate normality will be
assumed and maximum
likelihood estimation will be used.

4:00 PM     Analysis Seminar   459 MSc
George TURCU, BGSU
"A spectral condition for the existence of
hypercyclic subspaces"

Thursday, November 18, 2004

1:30 PM     Algebra Seminar   459 MSc
Dr. Corneliu HOFFMAN, BGSU
"K3 Surfaces and Sporadic Groups, Part II"

4:00 PM     Research Areas Seminar   459 MSc
Dr. Tong SUN, BGSU
"Error Estimation of Numerical PDEs"

Friday, November 19, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Refreshment Served for Colloquium   459 MSc

3:45 PM     Colloquium Talk Begins   459 MSc
Dr. Michael J. COLLINS, Oxford University
and Ohio State University
"Bounds for Finite Groups of Matrices"
ABSTRACT:  In 1878, Jordan showed that there was a function f on the
natural numbers such that, if G is a finite group of complex n x n
matrices, then G has a normal abelian subgroup of index bounded by f(n).
Explicit functions were given by Frobenius and Schur, but they are
very far from optimal, and it was only after the classification of
finite simple groups was announced that a near-best result was announced
by Weisfeiler; using more powerful group theoretic methods in place of
his analytic estimates, precise bounds can now be given.
I will discuss these and related questions.

Saturday, November 20, 2004

Sunday, November 21, 2004

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
November 22-28, 2004

Monday, November 22, 2004

**12:00 PM   Calendar Information for next week due to Cyndi**

Tuesday, November 23, 2004

Wednesday, November 24, 2004

THANKSGIVING BREAK - NO CLASSES - Offices OPEN

Thursday, November 25, 2004

THANKSGIVING - NO CLASSES - Offices CLOSED

Friday, November 26, 2004

THANKSGIVING BREAK - NO CLASSES - Offices CLOSED

Saturday, November 27, 2004

Sunday, November 28, 2004

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
November 29 - December 4, 2004

Monday, November 29, 2004

Tuesday, November 30, 2004

3:30 PM     Calculus Seminar   459 MSc

Wednesday, December 1, 2004

3:30 PM     Statistics Seminar   445 MSc
Igor MELNYKOV, BGSU
"Multiple Comparison Procedures for Gene
Expression Data"

4:00 PM     Analysis Seminar   459 MSc
George TURCU, BGSU
"A Spectral Condition for the Existence of
Hypercyclic Subspaces"

Thursday, December 2, 2004

1:30 PM     Algebra Seminar   459 MSc
Dr. Corneliu HOFFMAN, BGSU
"K3 Surfaces and Sporadic Groups, Part III"

4:00 PM     Research Areas Seminar   459 MSc
Dr. James H. ALBERT, BGSU
"Bayesian Testing"

Friday, December 3, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Refreshment Served for Colloquium   459 MSc

3:45 PM     Colloquium Talk Begins   459 MSc
Dr. Theodore CHANG, University of Virginia
"Statistics of Tectonic Plate Reconstructions"
ABSTRACT:  In 1960, Hess proposed the theory of sea floor spreading:
that new ocean crust is formed by magma welling up from the interior
of the earth and cooling as it reached the surface at mid-ocean ridges.
This crust is carried across the bottom of the ocean floor until it is
subducted in trenches.  Thus the surface of the earth is, to first
approximation, composed of tectonic plates which move rigidly away
from
the mid-ocean ridges.  The molten magma acquires a magnetization whose
direction depends upon the Earth's magnetic field at the time that it
reaches the surface.  Periodically in the past the North magnetic pole
has flipped to close to the South geographic pole, resulting in the so
called marine magnetic anomaly lineations.  These marine magnetic
anomaly lineations provide the best information to reconstruct the
past position
of tectonic plates.  We will discuss the statistical errors in these
reconstructions.
The relative position of two tectonic plates at a fixed time in the
past is given by a 3-dimensional rotation matrix.  Similar statistical issues
arise in the estimation of an unknown 3 dimensional coordinate system, a
problem which has arisen in other engineering contexts and in image
analysis.  We will focus on some general statistical principles that
apply in this
group of problems.
In estimating these reconstructions, the shapes of the lineations
become a nuisance parameter and a parsimonious model for their shapes
becomes desirable. Previous models assumed a piecewise great circular shape,
however, as the data density has increased, these models become untenable.
We will discuss some recent results on the use of an Ornstein-Uhlenbeck
process to model these shapes.
No geophysical background will be needed.  If time allows, we
will show that statisticians can also have fun with some slides of a
geophysical data collection cruise in the Indian Ocean.

Saturday, December 4, 2004

BGSU Preview Day     BTSU

Sunday, December 5, 2004

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
December 6, 2004 - January 9, 2005

Monday, December 6, 2004

Tuesday, December 7, 2004

Wednesday, December 8, 2004

3:30 PM     Statistics Seminar   445 MSc
Sherwin TORIBIO, BGSU
"Assessing the Goodness-of-Fit of IRT Models
Using Bayesian Methods"

4:00 PM     Analysis Seminar   459 MSc
George TURCU, BGSU
"A Spectral Condition for the Existence of
Hypercyclic Subspaces, Part II"

Thursday, December 9, 2004

1:30 PM     Algebra Seminar   459 MSc
Abdul SAMIR, BGSU
"Rank 2 Amalgams"

Friday, December 10, 2004

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

Saturday, December 11, 2004

Sunday, December 12, 2004

Monday, December 13, 2004

EXAM WEEK BEGINS

Tuesday, December 14, 2004

EXAMS CONTINUE

Wednesday, December 15, 2004

EXAMS CONTINUE

Thursday, December 16, 2004

EXAMS CONTINUE

Friday, December 17, 2004

EXAMS END at 5:30 PM

Saturday, December 18, 2004

Sunday, December 19, 2004

Monday, December 20, 2004

Final Grades Due by 9:00 AM in our office

BREAK BEGINS

Tuesday, December 21, 2004 - Sunday, January 9, 2005

BREAK CONTINUES

Monday, January 10, 2005

Spring Semester Begins

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
December 13, 2004 - January 9, 2005

Monday, December 13, 2004

EXAM WEEK BEGINS

Math Tutoring Lab will be open finals week--
Hours are:
Monday and Tuesday		10:00 a.m. to 7:30 p.m.
Wednesday and Thursday	10:00 a.m. to 5:00 p.m.
Closed Friday

Tuesday, December 14, 2004

EXAMS CONTINUE

Wednesday, December 15, 2004

EXAMS CONTINUE

3:30 PM    STATISTICS COMMITTEE MEETING   459 MSc

Thursday, December 16, 2004

EXAMS CONTINUE

Friday, December 17, 2004

EXAMS END at 5:30 PM

Saturday, December 18, 2004

Sunday, December 19, 2004

Monday, December 20, 2004

Final Grades Due by 9:00 AM in our office

BREAK BEGINS - OFFICE OPEN

Tuesday, December 21, 2004

BREAK CONTINUES - OFFICE OPEN

Wednesday, December 22, 2004

BREAK CONTINUES - OFFICE OPEN

Thursday, December 23 - Sunday, January 2, 2005

BREAK CONTINUES - DEPARTMENT OFFICE CLOSED

Monday, January 3, 2005 - Sunday, January 9, 2005

BREAK CONTINUES - OFFICE REOPENS

Monday, January 10, 2005

Spring Semester Begins

Math Tutoring Lab will reopen on Monday, January 10, 2005 Monday
through Thursday 10:00 a.m. to 7:30 p.m. for the semester.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

The Bowling Green State University Mathematics and Statistics Colloquium Series Fall 2004 Mathematical Sciences Building, Room 459

September 10
Arjun Gupta, Bowling Green State U.
"Taming of Skewness (Skew-Symmetric Models in Statistics)"

ABSTRACT Recently, there has been rather intense research activity related to various forms of extensions of standard parametric family of distributions to obtain more flexible classes, possibly retaining at least some of the appealing formal properties of the original family. While this exercise makes sense also in the scalar case, it is the multivariate setting that provides the more interesting and stimulating context, since here only a limited number of alternatives to the multivariate normal family are currently in use. In this talk, first the univariate skew-normal distribution and some of its properties, including the result that the square of a skew-normal random variable is chi-square, will be given. A characterization result, which is a generalization of a well-known result is given. Two applications to the stock returns data and the data on twins will be presented. Then a skew multivariate normal distribution will be defined and its properties will be studied in some detail. A stochastic representation of the skew multivariate normal random vector will be given which is useful for computer simulation. Further generalization to the matrix case will be indicated and some unsolved problems in this area will also be pointed out.

September 17, 2004
W. Charles HOLLAND, Bowling Green State University
"Small Varieties of Lattice-Ordered Groups and MV-Algebras"

ABSTRACT Lattice-ordered groups have been studied for more than a hundred years for their intrinsic interest, and because of their connections to other subjects such as "soft" analysis, and measurement theory (in social sciences). MV-algebras are algebraic models of multi-valued logic, which has applications in quantum mechanics, quantum computing, and similar areas. It has recently been discovered that there is an intimate connection between MV-algebras and lattice-ordered groups. In this talk, we will discuss that connection, and the implications this has for future research in the area.

September 24, 2004
Ray Heitger, Bowling Green State University
"Parents Preparing Preschool Pupils"

ABSTRACT I will discuss some ideas I have developed during 39 years in the classroom (all anecdotal), will look at some of the existing educational problems, will look at what some are doing to solve them, and suggest some areas of research for mathematics educators. Public schools really are doing a great job! Blaming our educational problems on schools is not where the true problem lies. I feel that parents need to become full partners with the academic community in accepting responsibility and assist in preparing students for an academic life.

October 1, 2004
Davd Hemmer, University of Toledo
"Specht module filtrations for representations of symmetric group"

ABSTRACT The representation theories of the symmetric group and general linear group have been closely related since the work of Schur in the early 1900's. This talk will illustrate a recent application of Schur's ideas in joint work with Dan Nakano. The complex irreducible representations of the symmetric group are called Specht modules. In characteristic p, the Specht modules may no longer be irreducible. Certain modules (e.g. Young modules) are known to have filtrations where the quotients are Specht modules. Unfortunately, the multiplicities may depend on the choice of filtration, i.e. there is no Jordan-Holder type'' theorem. This is in stark contrast to the situation for the general linear group, where the corresponding notion is of a good filtration.'' Not only are the multiplicities in such a filtration well-defined, but there is a nice cohomological criterion for when such a filtration exists and a formula for the multiplicities. We use the Schur and inverse Schur functors to demonstrate the situation for the symmetric group is much better than previously believed. Namely, for primes p>3 the multiplicities in a filtration by Specht modules are well-defined. We give a criterion for such a filtration to exist, and a formula for the multiplicities. As a corollary we give a new construction of Young modules, analogous to the Ringel-Donkin construction of tilting modules.The talk will be accessible to graduate students and advanced undergraduates.

October 8, 2004
NO COLLOQUIUM, Fall Break Weekend

October 15, 2004
Truc T. Nguyen, Bowling Green State University
"Exact EDF goodness-of-fit tests for inverse Gaussian distributions"

ABSTRACT Several characterizations of inverse Gaussian distributions are studied. Exact EDF goodness-of-fit tests for inverse Gaussian distributions using these characterization results as transformations are constructed. The powers of these tests at several alternative distributions are estimated by Monte-Carlo method.

October 22, 2004
Daniel Mihalko, Western Michigan University
"On Similarity Indices for Comparing Clustering Results"

ABSTRACT Many similarity indices have been introduced in the literature for comparing the results of different clusterings of the same data set. This work shows that after correction for chance agreement, many of these indices are actually equivalent. Potential uses of similarity indices in the analysis of gene expression experiments will also be discussed.

October 29, 2004
Dale H. Mugler, University of Akron
"Wavelets and the Time-Frequency Analysis of Musical Instruments"

ABSTRACT What makes the sound of a horn playing a middle C seem different from the sound of a flute playing the same note? Nearly everyone likes to listen to some kind of music, but rarely do we think of a piece we listen to as a time-frequency function. Fourier analysis, based on sines and cosines of different frequencies, has been used for many years to analyze the spectrum of a signal. But there is a relatively new mathematical tool that has taken over in many related areas, and that involves the theory of wavelets. Wavelets provide a basis made of functions that are non-zero only on a small time interval, yet represent very general functions. This talk will be a general overview to introduce the theory of wavelets and many of its applications, including the new JPEG 2000 standard for image compression, but will concentrate on time-frequency representations.

November 5, 2004
Richard Little, Baldwin Wallace College & BGSU "An Introduction to and Call for Help With the Ohio Resource Center for Mathematics, Science and Reading (Notice the disciplines are NOT in alphabetical order!)"

ABSTRACT The ORC is a virtual resource sponsored by the Ohio Board of Regents for "promising practice" and "best practice" lesson plans that are aligned with the national and Ohio standards in these three disciplines. We will introduce the plethora of lessons presently available on or via the ORC site for grades K -> 12 classes. There is a distinct dearth of lesson plans for college classes now available. Your help is needed in locating and developing more lesson plans which are relevant to the standards and which promote inquiry strategies for teaching the concepts. Of course we want these additional lesson plans to be attractive to college/university teachers so that they might try them in their classes which include prospective K -> 12 teachers. Please join us for the colloquium and join in the pursuit of more college level resources on the ORC site.

November 12, 2004
NO COLLOQUIUM

November 19, 2004
Michael J. Collins, Oxford University and Ohio State University "Bounds for Finite Groups of Matrices"

ABSTRACT In 1878, Jordan showed that there was a function f on the natural numbers such that, if G is a finite group of complex n x n matrices, then G has a normal abelian subgroup of index bounded by f(n). Explicit functions were given by Frobenius and Schur, but they are very far from optimal, and it was only after the classification of finite simple groups was announced that a near-best result was announced by Weisfeiler; using more powerful group theoretic methods in place of his analytic estimates, precise bounds can now be given. I will discuss these and related questions.

November 26, 2004
NO COLLOQUIUM - Thanksgiving Break

December 3, 2004
Theodore Chang, University of Virginia "Statistics of Tectonic Plate Reconstructions"

ABSTRACT In 1960, Hess proposed the theory of sea floor spreading: that new ocean crust is formed by magma welling up from the interior of the earth and cooling as it reached the surface at mid-ocean ridges. This crust is carried across the bottom of the ocean floor until it is subducted in trenches. Thus the surface of the earth is, to first approximation, composed of tectonic plates which move rigidly away from the mid-ocean ridges. The molten magma acquires a magnetization whose direction depends upon the Earth's magnetic field at the time that it reaches the surface. Periodically in the past the North magnetic pole has flipped to close to the South geographic pole, resulting in the so called marine magnetic anomaly lineations. These marine magnetic anomaly lineations provide the best information to reconstruct the past position of tectonic plates. We will discuss the statistical errors in these reconstructions. The relative position of two tectonic plates at a fixed time in the past is given by a 3-dimensional rotation matrix. Similar statistical issues arise in the estimation of an unknown 3 dimensional coordinate system, a problem which has arisen in other engineering contexts and in image analysis. We will focus on some general statistical principles that apply in this group of problems. In estimating these reconstructions, the shapes of the lineations become a nuisance parameter and a parsimonious model for their shapes becomes desirable. Previous models assumed a piecewise great circular shape, however, as the data density has increased, these models become untenable. We will discuss some recent results on the use of an Ornstein-Uhlenbeck process to model these shapes. No geophysical background will be needed. If time allows, we will show that statisticians can also have fun with some slides of a geophysical data collection cruise in the Indian Ocean.

January 21, 2005
Ignacio Zalduendo, Universidad Torcuato Di Tella and Kent State University "Orthogonally Additive polynomials over $C(K)$"

ABSTRACT Two continuous functions on the compact set $K$ are called orthogonal if their product is zero. A continuous homogeneous polynomial over $C(K)$ is said to be orthogonally additive if $P(u+v)=P(u)+P(v)$, for all orthogonal $u$ and $v$. In two recent papers Benyamini-Llavona-Lassalle and Perez-Villanueva characterize such polynomials using Borel measures on $K$. The two proofs are different and both very technical. In this talk we provide a third proof of the result. Our proof uses the Aron-Berner extension, a linearization procedure (which will be explained in the talk) and elementary topology and functional analysis. The proof is far shorter than those mentioned above.

Gennady Puninskiy, Ohio State University-Lima "Pure-Injective Modules Over String Algebras"

ABSTRACT String algebras form a class of finite dimensional algebras over a field $k$ which are tame, that is, it is possible to classify indecomposable finite dimensional modules over them. An example of a string algebra is a Gelfand-Ponomarev algebra $G_{2,3}$ which is isomorphic to the factor of the polynomial ring $k[x,y]$ by the ideal generated by $xy$, $x^2$, and $y^3$. Pure-injective modules over string algebras can be defined as direct summands of direct products of finite-dimensional modules. For instance, we usually have pure-injective modules which are analogs of adic', Prüfer' and generic' abelian groups. In this talk we consider a classification problem of pure- injective modules over string algebras and its connections with complexity of the category of modules. For instance, we will discuss Ringel's conjectural classification of indecomposable pure-injective modules over domestic string algebras, and Schröer's conjecture that the Krull-Gabriel dimension of a domestic string algebra is finite.

March 2, 2005
V. Seshadri, McGill University "Some New Independence Properties of the Inverse Gaussian Distribution"

ABSTRACT This talk is motivated by the classical result of Tweedie about the weighted sum of reciprocals of inverse Gaussian random variables which, besides being independent of the sample mean , also follows a gamma law. The result goes as follows. Let a, t_1 , ......t_n be real positive constants. Let Y_1 , ......., Y_n be n independent inverse Gaussian random variables, such that L(Y_i) = IG (a t_i, a(t_i)^2) , i = 1,....,n. Define by b_i = [(t_i)^2 / Y_i], and c = ( T^2 / Y ) where T is the sum of all the t_i's and Y is the sum of all the Y_i's . Then we have the result that Q= a [{ b_1 + ......+ b__n} - c] is independent of Y. Moreover, Q has a chi-square law with (n-1) degrees of freedom and the law of Y, namely L(Y) = IG [aT,aT^2]. This talk explores what happens when the t_i 's are considered random. We also consider a generalization to the Generalized inverse Gaussian law. Finally we show a connection to the Wishart distribution.

March 18, 2005
Alexander Izzo, BGSU "Algebras of Functions of One Complex Variable via Several Complex Variables"

ABSTRACT Some results concerning algebras of bounded functions on a planar domain will be discussed. Some of the ingredients in the proofs, which involve a combination of techniques from functional analysis and complex analysis, will also be described. Although the results concern only functions of one complex variable, in many cases the only known proofs make essential use of several complex variables.

Nadini Kannan, University of Texas at San Antonio "Estimation of the Linear Array Model"

ABSTRACT The area of array processing has received considerable attention in the past several decades. The Array Model consists of an array of sensors used to detect the presence of one or more radiating point sources. Sensor arrays are widely used in radar and sonar, geophysics, and tomography. The main problem of interest is estimation of the parameters associated with the signals including their directions of arrival (DOA), the number of signals, and their crosscorrelations. The Array Model is highly nonlinear, and traditional estimation methods like maximum likelihood and least squares are numerically difficult. We will discuss some alternative methods of estimation of the model parameters using eigendecompositions of the sample covariance matrix. These eigenspace methods are high resolution techniques that exploit the inherent structures in the model and are computationally much more tractable then the traditional methods. We will also discuss the problem of identifying the number of signals which may be formulated as a model selection problem. Some extensions to estimating the parameters for wideband signals will also be discussed.

April 1, 2005
Pamela Richardson, University of Virginia-Richmond "Centroids of Quadratic Jordan Superalgebras"

ABSTRACT The centroid of a Jordan superalgebra consists of the natural "superscalar multiplications'' on the superalgebra. The basic examples of Jordan superalgebras are the simple Jordan superalgebras with semisimple even part, which were classified over an algebraically closed field of characteristic not 2 by M. L. Racine and E. I. Zelmanov. In this talk, we discuss the centroids of these superalgebras over a general ring of scalars.

April 8, 2005
Satish Iyengar, University of Pittsburgh "Models for Integrate-and-Fire Neurons"

ABSTRACT Stochastic models of neural activity are a well developed application in biology. Diffusion models for integrate-and-fire neurons hold a prominent place because of the many synaptic inputs to a neuron, and because these models arise out of noisy versions of differential equations for the neural membrane's electrical properties. While the probabilistic aspects of such models have been well studied, inferential and computational procedures for them are not as well developed. In this talk, I outline the physiological background leading to these models. I then describe recent progress in parameter estimation and the computational problems that arise.

April 22, 2005
Tong Sun, Bowling Green State University "Error Control in Numerical PDEs"

ABSTRACT General ideas and methods of error estimation and control in numerical solutions of partial differential equations will be discussed. That is, we are going to introduce the concepts of local error, global error, consistency, stability, convergence, and error bound. In addition, we also need to understand error propogation and error pollution. What are the mathematical tools we need to work on all these problems?

Weekly Calendar

The Bowling Green State University Mathematics and Statistics Colloquium Series Fall 2004 Mathematical Sciences Building, Room 459

Date Speaker Title
Sept. 10 Arjun Gupta
Bowling Green State U.
Taming of Skewness
(Skew-Symmetric Models in Statistics)
Sept. 17 W. Charles Holland
BGSU
Small Varieties of Lattice-Ordered Groups and MV-Algebras
Sept. 24 Ray Heitger
BGSU
Parents Preparing Preschool Pupils
Oct. 1 David Hemmer
University of Toledo
Specht module filtrations for representations of symmetric group
Oct. 8 No colloquium (Fall Break)
Oct. 15 Truc Nguyen
BGSU

Oct. 22 Daniel Mihalko

Oct 29 Dale Mugler
University of Akron
Wavelets and the Time-Frequency Analysis of Musical Instruments
Nov. 5 Richard Little
Baldwin Wallace Univeristy & BGSU
An Introduction to and Call for Help with The Ohio Resource Center for Mathematics, Science, and Reading (Notice the disciplines are NOT in alphabetical order!)
Nov. 12 Veteran's Day. No colloquium
Nov. 19 Michael Collins
Oxford University and Ohio State University
Bounds for Finite Groups of Matrices
Nov. 26 Thanksgiving. No colloquium
Dec. 3

Dec. 10 No colloquium
McGill University
Some New Independence Properties of the Inverse Gaussian Distribution
Mar. 18 A. Izzo
BGSU
Algebras of Functions of One Complex Variable via Several Complex Variables
Apr. 1 Pamela Richardson
University of Virginia-Richmond
Apr. 8 Satish Iyengar
University of Pittsburgh
Apr. 22 Tong Sun
Bowling Green State University

BGSU Seminars

The Bowling Green State University Mathematics and Statistics Seminars Fall 2004

Monday
• 3:30 PM, Graduate Student Seminar, 400 MSc, Lynette Boos organizer

Tuesday

• 3:30 PM, Calculus Seminar, 459 MSc, Gordon Wade and Thomas Hern organizers

• 5:00 PM, Honors MATH 295 Seminar, 459 MSc, Steven Seubert organizer

Wednesday

• 3:30 PM, Statistics Seminar, 445 MSc, Arjun Gupta organizer

• 4:00 PM, Analysis Seminar, 459 MSc, Juan Bes organizer

Thursday

• 1:30 PM, Algebra Seminar, 459 MSc, Warren Wm. McGovern organizer

• 4:00 PM, Research Areas Seminar, 459 MSc, Alex Izzo organizer

Friday

• 3:45 PM, Colloquium, 459 MSc, Alex Izzo organizer

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
January 10 - 17, 2005

Monday, January 10, 2005

Tuesday, January 11, 2005

10:45 AM    MATH 115 Instructor's Meeting   400 MSc

Wednesday, January 12, 2005

3:30 PM     Statistics Committee Meeting   445 MSc

Thursday, January 13, 2005

Friday, January 14, 2005

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

Saturday, January 15, 2005

Sunday, January 16, 2005

Monday, January 17, 2005

NO CLASSES - Martin Luther King Day - OFFICES CLOSED

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
January 17-23, 2005

Monday, January 17, 2005

NO CLASSES - OFFICES CLOSED - Martin Luther King Day

Tuesday, January 18, 2005

10:45 AM    MATH 115 Instructor's Meeting   400 MSc

Wednesday, January 19, 2005

10:30 AM    Algebra Seminar   400 MSc
Dr. Abdul SAMI

12:30 PM    Calculus Seminar   459 MSc

2:30 PM     Research Areas Seminar   459 MSc

3:30 PM     Statistics Seminar   459 MSc
Professor N. BALAKRISHNAN, Visiting Lukacs Professor
"Progressive Censoring I:  Introduction and Properties"

Thursday, January 20, 2005

Friday, January 21, 2005

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

1:00 PM     Graduate Committee Meeting   400 MSc

3:30 PM     Refreshments Served Prior to Colloquium   459 MSc

3:45 PM     Colloquium   459 MSc
Dr. Ignacio Zalduendo
Universidad Torcuato di Tella and Kent State University
"Orthogonally additive polynomials over $C(K)$"
Abstract: Two continuous functions on the compact set $K$ are called
orthogonal if their product is zero. A continuous homogeneous
polynomial over $C(K)$ is said to be orthogonally additive if
$P(u+v)=P(u)+P(v)$, for all orthogonal $u$ and $v$. In two recent
papers Benyamini-Llavona-Lassalle and Perez-Villanueva characterize
such polynomials using Borel measures on $K$. The two proofs are
different and both very technical. In this talk we provide a third
proof of the result. Our proof uses the Aron-Berner extension, a
linearization procedure (which will be explained in the talk) and
elementary topology and functional analysis. The proof is far shorter
than those mentioned above.

Saturday, January 22, 2005

Sunday, January 23, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
January 24-30, 2005

Monday, January 24, 2005

1:30 PM     Graduate Student Seminar   400 MSc
"Fractal Tilings"

Tuesday, January 25, 2005

10:45 AM    MATH 115 Instructor's Meeting   400 MSc

Wednesday, January 26, 2005

10:30 AM    Algebra Seminar   400 MSc
Dr. Abdul SAMI, Imperial College - London
"Locally Dihedral Amalgams of Even Type" continued

12:30 PM    Calculus Seminar   459 MSc
"The Calculus Gallery"

2:30 PM     Research Areas Seminar   459 MSc
TBA

3:30 PM     Statistics Seminar   459 MSc
Professor N. BALAKRISHNAN
Visiting Lukacs Professor
"Progressive Censoring II: Some distributional
results and exact linear inference"

Thursday, January 27, 2005

2:00 PM     Graduate Committee Meeting   400 MSc

Friday, January 28, 2005

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Refreshments Served Prior to Colloquium   459 MSc

3:45 PM     Colloquium   459 MSc
Dr. Gennady PUNINSKIY, Ohio State University-Lima
"Pure-Injective Modules Over String Algebras"
ABSTRACT:  String algebras form a class of finite dimensional
algebras over a field $k$ which are tame, that is, it is possible
to classify indecomposable finite dimensional modules over them.
An example of a string algebra is a Gelfand-Ponomarev algebra
$G_{2,3}$ which is isomorphic to the factor of the polynomial
ring $k[x,y]$ by the ideal generated by $xy$, $x^2$, and $y^3$.
Pure-injective modules over string algebras can be defined as
direct summands of direct products of finite-dimensional modules.
For instance, we usually have pure-injective modules which are
analogs of adic', Prüfer' and generic' abelian groups.
In this talk we consider a classification problem of pure-
injective modules over string algebras and its connections with
complexity of the category of modules.  For instance, we will
discuss Ringel's conjectural classification of indecomposable
pure-injective modules over domestic string algebras, and
Schröer's conjecture that the Krull-Gabriel dimension of a
domestic string algebra is finite.

Saturday, January 29, 2005

Sunday, January 30, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
January 31 - February 6, 2005

Monday, January 31, 2005

12:30 PM    Undergraduate Committee Meeting   400 MSc

1:30 PM     Graduate Student Seminar   400 MSc
Douglas PUHARIC, BGSU
"An Introduction to Fullerenes"

Tuesday, February 1, 2005

10:45 AM    MATH 115 Instructors Meeting   400 MSc

3:30 PM     Tenured Faculty Meeting   459 MSc

Wednesday, February 2, 2005

10:30 AM    Algebra Seminar   400 MSc
Professor W. Charles HOLLAND, BGSU

12:30 PM    Calculus Seminar   459 MSc

1:30 PM     Advisory Committee Meeting   458 MSc

2:30 PM     Research Areas Seminar   459 MSc
Professor Hanfeng CHEN
"Finite Mixture Models with Applications to
Statistical Genetics"

3:30 PM     Statistics Seminar   459 MSc
Professor N. BALAKRISHNAN
Visiting Lukacs Professor
"Progressive Censoring III: EM-algorithm and

3:30 PM     Analysis Seminar   400 MSc
Dr. Juan BES, BGSU
"Hypercyclic Subspaces on Frechet Spaces"

Thursday, February 3, 2005

Friday, February 4, 2005

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

1:00 PM     Graduate Committee Meeting   400 MSc

3:30 PM     Refreshments Served Prior to Colloquium   459 MSc

3:45 PM     Colloquium   459 MSc
Dr. Abdul SAMI, Imperial College-London
"Automorphisms of Regular Graphs"
ABSTRACT:  Let $\Gamma$ be a finite graph of valency 3 and suppose
that $G$ is a group of symmetrics of $\Gamma$ such that $G$ acts
transitively on the vertices of $\Gamma$ and also acts transitively
on the $1-arcs$ of $\Gamma$.  In 1959 Tutte proved that in this
situation, the subgroup of $G$ which fixes a vertex $v$ of $\Gamma$,
has order which is bounded by $3 \cdot 24$.
We prove a generalization of this result for $k$-valent graphs
$\Gamma$, where $k \leq 3$, is an arbitrary odd integer.

Saturday, February 5, 2005

Sunday, February 6, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
February 7 - 13, 2005

Monday, February 7, 2005

1:30 PM     Graduate Student Seminar   400 MSc
Douglas PUHARIC, BGSU
"Introduction to Fullerenes, Part II"

Tuesday, February 8, 2005

10:45 AM    MATH 115 Instructors Meeting   400 MSc

3:45 PM     Statistics Committee Meeting   459 MSc

Wednesday, February 9, 2005

10:30 AM    Algebra Seminar   400 MSc
Dr. Corneliu HOFFMAN, BGSU

12:30 PM    Calculus Seminar   459 MSc
Dr. Richard LITTLE, Mary KOSHAR, & Debbie GYURKO
"Calculus Gallery: The Cauchy Wing'"

3:30 PM     Statistics Seminar   459 MSc
Dr. N. BALAKRISHNAN, Visiting Lukacs Professor
"Progressive Censoring IV: Optimal Progressive
Censoring"

Thursday, February 10, 2005

Friday, February 11, 2005

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

Saturday, February 12, 2005

Sunday, February 13, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
February 14 - 20, 2005

Monday, February 14, 2005

Tuesday, February 15, 2005

10:45 AM    MATH 115 Instructors Meeting   400 MSc

Wednesday, February 16, 2005

10:30 AM    Algebra Seminar   400 MSc
Dr. Corneliu HOFFMAN, BGSU
"Flips for Algebraic Groups, II"

11:30 AM    Statistics Seminar   **140 MSc** *note location change*
Dr. N. BALAKRISHNAN, Visiting Lukacs Professor
"Progressive Censoring V: Goodness-of-Fit Tests"

12:30 PM    Calculus Seminar   459 MSc
TBA

3:30 PM     Analysis Seminar   400 MSc
Dr. Juan BES, BGSU
"TBA"

**3:30 PM  Statistics Candidate Colloquium**   459 MSc
"Robust Estimation via Measurement Error Model
Likelihoods with Applications to Location-Scale Models"

Thursday, February 17, 2005

**3:30 PM Statistics Candidate Colloquium**   459 MSc
"Diagnostic Measures and Selection Criteria for
Mixed Models Based on Kullback-Leibler Information"
ABSTRACT:  This talk consists of two parts. In the first part, a
diagnostic defined in terms of the Kullback-Leibler directed divergence
is developed for identifying cases which impact the prediction of the
random effects in a mixed model. The diagnostic compares two
conditional densities governing the prediction of the random effects:
one based on
parameter estimates computed using the full data set; the other based
on parameter estimates computed using a case-deleted data set. We
present
the definition of the diagnostic and a computational formula for its
evaluation.  We illustrate the effectiveness of the measure using a
simulated data set. The performance of the measure is also investigated
in an application where exam scores are modeled using a mixed model
containing a fixed exam effect and a random subject effect.
In the second part, we extend the results of Shibata (1997) to
propose five bootstrap-corrected variants of AIC, denoted by AICb1-AICb5,
for the purpose of small-sample mixed model selection. These variants
are asymptotically equivalent, and provide asymptotically unbiased
estimators
of the expected Kullback-Leibler discrepancy between the true model and a
fitted candidate model. The performance of the criteria is investigated in
a simulation study where the random effects and the errors for the true
model are generated from a Gaussian distribution. Parametric,
semiparametric, and nonparametric bootstrapping are employed. Our
results indicate that under parametric bootstrapping, the variants
exhibit the best overall bias properties. For correctly specified or
overfit models, the criterion originally introduced by Efron (1983,
1986), AICb1, provides a
less biased estimator of the expected discrepancy than AIC and the
other proposed variants. The criterion originally introduced by
Cavanaugh and
Shumway (1997), AICb2, exhibits a higher success rate in identifying the
correct model than AIC and the other variants. Overall, the bootstrap
AIC variants appear to serve as effective tools for selecting a mixed
model of appropriate dimension.

Friday, February 18, 2005

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

**1:30 PM Director of Service Mathematics Candidate Colloquium**
459 MSc
"Wavelets, Multiscale Analysis and Their Applications"
ABSTRACT:  We begin with a brief overview of wavelet analysis. We then
compare wavelet transforms with Fourier transforms and state their
properties. Multiresolution analysis provides a natural framework of
the construction of wavelets. We describe its insight by an
illustration from a coarse approximation to a higher resolution
approximation. The computational efficiency and accuracy of the
multiscale methods have allowed us to make improvements in many
applications.  Several wavelet based multiscale computational methods
will be introduced. Applications on image processing
and numerical solutions of partial differential equations will be mentioned.

Saturday, February 19, 2005

Sunday, February 20, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
February 21-27, 2005

Monday, February 21, 2005

1:30 PM     Graduate Student Seminar   400 MSc
Michelle KNOX, BGSU
"A Practice Interview Talk"

3:30 PM     Director of Service Mathematics Candidate Colloquium
459 MSc
"Wazewski Inequalities of Functional Differential Equations"

Tuesday, February 22, 2005

3:30 PM     Statistics Candidate Colloquium   459 MSc
"Mining Huge-p-small-n Medical Imaging Data and
Deconvolution Problems"

Wednesday, February 23, 2005

10:30 AM    Algebra Seminar   400 MSc
Professor Sergey SHPECTOROV, BGSU
"

11:30 AM    Statistics Seminar   **140 MSc** *note time/location change*
Dr. N. BALAKRISHNAN, Visiting Lukacs Professor
"Progressive Censoring V: Goodness-of-Fit Tests"

3:30 PM     Director of Service Mathematics Candidate Colloquium
459 MSc
"The Fundamental Theorem of Math Education (and what can be

Thursday, February 24, 2005

Friday, February 25, 2005

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Algebra Candidate Colloquium   459 MSc

Saturday, February 26, 2005

Sunday, February 27, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
February 28 - March 13, 2005

Monday, February 28, 2005

**1:30 PM     Undergraduate Committee Meeting   459 MSc**note time/room
AGENDA:  Scholarships

1:30 PM     Graduate Student Seminar   400 MSc
Keshav JAGANNATHAN, BGSU
"The Skewed Double-Exponential Distribution"

3:30 PM     Algebra Candidate COLLOQUIUM   459 MSc

Tuesday, March 1, 2005

10:45 AM    MATH 115 Instructors Meeting   400 MSc

3:30 PM     Algebra Candidate COLLOQUIUM   459 MSc
"Algebra and Combinatorics of Buildings"
ABSTRACT:  Buildings are by nature combinatorial geometric structures
originating from Lie theory.  I will describe some of my favorite
results - old and recent - illustrating combinatorial ties between
buildings and topics in algebra, group theory, geometry and topology.
This talk is intended for a general mathematical audience.

Wednesday, March 2, 2005

12:30 PM    Calculus Seminar   459 MSc
Lynette BOOS, BGSU
"Transition to the Modern Wing, Baire Exhibit,
and the Lebesgue Room"

1:30 PM     ADVISORY COMMITTEE MEETING   458 MSc
Agenda:  Positions Search Progress

**2:30 PM  COLLOQUIUM**   459 MSc
"Some New Independence Properties of the
Inverse Gaussian Distribution"
ABSTRACT:    This talk is motivated by the classical result of
Tweedie  about the weighted sum of reciprocals of inverse
Gaussian random variables which, besides being independent of
the sample mean , also follows a gamma law. The result goes as
follows.
Let  a, t_1 , ......t_n  be real positive constants.
Let  Y_1 , ......., Y_n  be  n independent inverse Gaussian
random variables, such that
L(Y_i)  =   IG (a t_i, a(t_i)2) , i = 1,....,n.
Define by  b_i = [(t_i)2 / Y_i],  and  c  =  ( T2 / Y )
where  T is the sum of all the t_i's and  Y is the sum of  all
the  Y_i's .  Then we have the result that
Q=  a  [{ b_1 + ......+ b__n}  - c]   is independent of  Y.
Moreover, Q has  a chi-square law with  (n-1) degrees of freedom
and the law of  Y, namely  L(Y)  =  IG [aT,aT2].
This talk explores what happens when the  t_i 's are considered
random.  We also consider a generalization to the Generalized
inverse Gaussian law.  Finally we show a connection to the Wishart
distribution.

3:30 PM     Statistics Seminar   459 MSc
Professor N. Balakrishnan, Visiting Lukacs Professor
"Progressive Censoring V: Goodness-of-Fit Tests, Part II"

Thursday, March 3, 2005

**12:00 PM  Calendar Information due to Cyndi
for inclusion in the week after next week's
calendar listing**

Friday, March 4, 2005

Saturday, March 5, 2005 - Sunday, March 13, 2005

**SPRING BREAK**

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
March 14-20, 2005

Monday, March 14, 2005

Tuesday, March 15, 2005

10:45 AM    MATH 115 Instructors Meeting   400 MSc

Wednesday, March 16, 2005

10:30 AM    Algebra Seminar   400 MSc
Jon DUNLAP, BGSU
"Uniqueness of Curtis-Phan-Tits Amalgams"

12:30 PM    Calculus Seminar   459 MSc
Prof. Steven SEUBERT, BGSU
"Mercator Projection"

2:30 PM     Research Areas Seminar   459 MSc
"The Maximally Predictable Portfolio"

3:30 PM     Statistics Seminar   459 MSc
Dr. N. BALAKRISHNAN, Visiting Lukacs Professor

3:30 PM     Analysis Seminar   400 MSc

Thursday, March 17, 2005

Friday, March 18, 2005

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Refreshments Served Prior to Colloquium   459 MSc

3:45 PM     Colloquium   459 MSc
Dr. Alexander IZZO, BGSU
"Algebras of Functions of One Complex Variable via
Several Complex Variables"
ABSTRACT:  Some results concerning algebras of bounded functions on a planar domain will be discussed.  Some of the ingredients in the proofs, which involve a combination of techniques from functional analysis and complex analysis, will also be described.  Although the results concern only functions of one complex variable, in many cases the only known proofs make essential use of several complex variables.

Saturday, March 19, 2005

Sunday, March 20, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
March 21 - 27, 2005

Monday, March 21, 2005

1:30 PM     Graduate Student Seminar   400 MSc

Tuesday, March 22, 2005

10:45 AM    MATH 115 Instructors Meeting   400 MSc

Wednesday, March 23, 2005

10:30 AM    Algebra Seminar   400 MSc
Jon DUNLAP, BGSU
"Uniqueness of Curtis-Phan-Tits Amalgams, II"

12:30 PM    Calculus Seminar   459 MSc
Professor Neal CAROTHERS, BGSU
"The Baire Exhibit and Lebesgue Room"

1:45 PM     Dissertation Defense   459 MSc
Juan MARIN
"Dense Sets of Common Cyclic Vectors of Jordan
Operators"

2:30 PM     Research Areas Seminar   447 MSc *note room change*
Dr. John CHEN, BGSU
"Statistical Inference on the Therapeutic
Window of a Drug"

3:30 PM     Statistics Seminar   459 MSc
Guizin ODUNCUOLGU, BGSU
"Generalized Extreme Value Distribution and
Its Applications"

3:30 PM     Analysis Seminar   400 MSc

Thursday, March 24, 2005

1:00 PM        Personnel Committee Meeting   458 MSc
AGENDA:  Annual Evaluations

Friday, March 25, 2005

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

No Colloquium This Week

Saturday, March 26, 2005

Sunday, March 27, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
March 28 - April 3, 2005

Monday, March 28, 2005

12:30 PM    Undergraduate Committee Meeting   400 MSc

1:30 PM     Graduate Student Seminar   400 MSc
Keshav JAGANNATHAN, BGSU
"Skewed Double Exponential Distribution: An
Introduction"

Tuesday, March 29, 2005

10:45 AM    MATH 115 Instructors Meeting   400 MSc

1:00 PM        Thesis Defense   BA 105
Volodmyr MELNYKOV
"Bayesian estimation of electoral college votes
in multicandidate elections"

Wednesday, March 30, 2005

10:30 AM    Algebra Seminar   400 MSc
"TBA"

12:30 PM    Calculus Seminar   459 MSc

12:30 PM    Advisory Committee Meeting   458 MSc
AGENDA:  Director of Service Mathematics position

**2:30 PM     COLLOQUIUM   459 MSc**  (refreshments at 2:15PM)
Dr. Nadini KANNAN, University of Texas at San Antonio
"Estimation of the Linear Array Model"

> ABSTRACT:  The area of array processing has received considerable
> attention in the past several decades. The Array Model consists of
> an array of sensors used to detect the presence of one or more
> and sonar, geophysics, and tomography.  The main problem of interest
> is estimation of the parameters associated with the signals including
> their directions of arrival (DOA), the number of signals, and their crosscorrelations.
>
> The Array Model is highly nonlinear, and traditional estimation
> methods like maximum likelihood and least squares are numerically
> difficult. We will discuss some alternative methods of estimation
> of the model parameters using eigendecompositions of the sample
> covariance matrix. These eigenspace methods are high resolution
> techniques that exploit the inherent structures in the model and
> are computationally much more tractable then the traditional
> methods. We will also discuss the problem of identifying the
> number of signals which may be formulated as a model selection
> problem.
>
Some extensions to estimating the parameters for wideband signals will
also be discussed.

3:30 PM        Statistics Seminar   459 MSc
Professor N. BALAKRISHNAN, Visiting Lukacs Professor
"Exact Inference for Simple Step-stress Test under
Censoring"

3:30 PM     Analysis Seminar   400 MSc
Dr. Alexander IZZO, BGSU
"Interpolation between a theorem of Chirka
and a theorem of Axler and Shields"

Thursday, March 31, 2005

9:00 AM - 11:00 AM    Personnel Committee Meeting   400 MSc
AGENDA:  Annual evaluations

Friday, April 1, 2005

12:00 PM - 9:00 PM    Spring 2005 Ohio Section MAA Meeting
Miami University, Oxford, OH
Program:  http://www.math.uakron.edu/ohiomaa

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

1:00 PM     Graduate Committee Meeting   400 MSc
AGENDA:  MATH 672 (Biostatistics Methods)

3:30 PM     Refreshments Served Prior to Colloquium   459 MSc

3:45 PM     Colloquium   459 MSc
Pamela RICHARDSON, University of Virginia
ABSTRACT:  The centroid of a Jordan superalgebra consists of the
natural "superscalar multiplications'' on the superalgebra.   The
basic examples of Jordan superalgebras are the simple Jordan
superalgebras with semisimple even part, which were classified over
an algebraically closed field of characteristic not 2 by M. L. Racine
and E. I. Zelmanov.  In this talk, we discuss the centroids of these superalgebras over a general ring of scalars.

Saturday, April 2, 2005

8:00 AM - 1:00 PM    Spring 2005 Ohio Section MAA Meeting cont.
Miami University, Oxford, OH
Program:  http://www.math.uakron.edu/ohiomaa

Sunday, April 3, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
April 4-10, 2005

Monday, April 4, 2005

1:30 PM     Graduate Student Seminar   400 MSc
Lynette BOOS, BGSU
"Closed Subspaces of Hilbert Spaces"

Tuesday, April 5, 2005

10:00 AM - 10:45 AM    Personnel Committee Meeting   400 MSc

10:45 AM - 11:30 AM    Personnel Committee Meeting   447 MSc

10:45 AM    MATH 115 Instructors Meeting   400 MSc

12:30 PM    Advisory Committee Meeting   458 MSc

Wednesday, April 6, 2005

10:30 AM    Algebra Seminar   400 MSc
Nicholas IMMORMINO, BGSU
"Clean Rings"

12:30 PM    Calculus Seminar   459 MSc

2:30 PM     Research Areas Seminar   459 MSc
Professor So-Hsiang CHOU, BGSU

3:30 PM     Analysis Seminar   400 MSc
Dr. Alexander IZZO, BGSU
"Interpolation Between a Theorem of Chirka and
a Theorem of Axler and Shields, Part II"

Thursday, April 7, 2005

Friday, April 8, 2005

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:30 PM     Refreshments Served Prior to Colloquium   459 MSc

3:45 PM     Colloquium   459 MSc
Dr. Satish IYENGAR, University of Pittsburgh
"Models for Integrate-and-Fire Neurons"
ABSTRACT:  Stochastic models of neural activity are a well developed
application in biology. Diffusion models for integrate-and-fire neurons
hold a prominent place because of the many synaptic inputs to a neuron,
and because these models arise out of noisy versions of differential
equations for the neural membrane's electrical properties. While the
probabilistic aspects of such models have been well studied,
inferential
and computational procedures for them are not as well developed. In this
talk, I outline the physiological background leading to these models. I
then describe recent progress in parameter estimation and the
computational problems that arise.

Saturday, April 9, 2005

11:00 AM    KME Induction Ceremony and Banquet
Campus Corners Restaurant

Sunday, April 10, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
April 11 - 17, 2005

Monday, April 11, 2005

Tuesday, April 12, 2005

10:45 AM    MATH 115 Instructors Meeting   400 MSc

12:30 PM    Advisory Committee Meeting	458 MSc

1:00 PM	    Undergraduate Committee Meeting	Coffee Lounge

Wednesday, April 13, 2005

10:30 AM    Algebra Seminar   400 MSc
Nicholas IMMORMINO, BGSU
"Clean Rings, Part II"

12:30 PM    Calculus Seminar   459 MSc

2:30 PM     Research Areas Seminar   459 MSc
Dr. Alexander Izzo, BGSU
"Polynomial and Rational Approximation in One and Several
Complex Variables"

3:30 PM     Statistics Seminar   459 MSc
Dr. N. BALAKRISHNAN, Visiting Lukacs Professor
"Step-Stress Testing - Part II"

3:30 PM     Analysis Seminar   400 MSc
Lynette BOOS, BGSU
"A Theorem of Rudin"

Thursday, April 14, 2005

9:00 AM - 11:00 AM	Personnel Committee Meeting		400 MSc

Friday, April 15, 2005

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

12:00 PM    Lukacs Conference		308 BTSU
for program info:
http://www.bgsu.edu/departments/math/BGDistributionProgram-4-5.pdf

1:00 PM     Graduate Committee Meeting   400 MSc

Saturday, April 16, 2005

8:00 AM     Lukacs Conference		308 BTSU
for program info:
http://www.bgsu.edu/departments/math/BGDistributionProgram-4-5.pdf

Sunday, April 17, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
April 18-24, 2005

Monday, April 18, 2005

Tuesday, April 19, 2005

10:45 AM    MATH 115 Instructors Meeting   400 MSc

12:30 PM    Advisory Committee Meeting   458 MSc

Wednesday, April 20, 2005

12:30 PM    Calculus Seminar   459 MSc

2:30 PM     Research Areas Seminar   459 MSc
Professor Neal L. CAROTHERS
"Bases and Frames"
ABSTRACT:  We discuss the notion of a basis for a space of
functions (along the lines of the familiar notion
of a basis from linear algebra) and some of its
generalizations.  A familiar example of such a
basis is the sequence of trigonometric functions.
In other words, Fourier series can be viewed as
basis representations for certain functions.
We will also briefly discuss the notion of a frame
(which is a generalization of a basis) and some of
its applications.  While a full understanding of all
the details will require some background in advanced
analysis, much of the talk should be accessible to
anyone familiar with elementary linear algebra and
one or two classical examples, such as Fourier series.

2:30 PM     Statistics Seminar (Extra)   400 MSc
Dr. N. BALAKRISHNAN, Visiting Lukacs Professor
"Permanents and Order Statistics from INID Variables"

3:30 PM     Statistics Seminar   459 MSc
Dr. N. BALAKRISHNAN, Visiting Lukacs Professor
"Ordered Ranked Set Sampling, Part I"

3:30 PM     Analysis Seminar   400 MSc

Thursday, April 21, 2005

Friday, April 22, 2005

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

3:15 PM     GA Teaching Awards & Refreshments Prior to Colloquium
459 MSc

3:45 PM     Colloquium   459 MSc
Dr. Tong SUN, BGSU
"Error Control in Numerical PDEs"
ABSTRACT:  General ideas and methods of error estimation and control in
numerical solutions of partial differential equations will be
discussed. That is, we are going to introduce the concepts of
local error, global error, consistency, stability, convergence,
and error bound. In addition, we also need to understand
error propogation and error pollution. What are the mathematical
tools we need to work on all these problems?

Saturday, April 23, 2005

Sunday, April 24, 2005

--

Department of Mathematics & Statistics
Bowling Green State University              Phone:  419-372-2638
Bowling Green OH 43403-0221                 FAX: 419-372-6092

WWW: http://www.bgsu.edu/departments/math/faculty/faculty-dir.html#Staff

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

April 26 - May 2, 2004

Last Week of Spring Semester Classes
**Be Sure to Announce to your classes exactly when
and where your final exams will be next week.**

Monday, April 26, 2004

9:30 AM     Dissertation Defense     459 MSc
Jin XU
"Robustness Study of Some Multivariate Tests in
Generalized Linear Models"

1:30 PM     Undergraduate Committee Meeting   400 MSc

3:30 PM     Algebra Seminar   400 MSc
Nate IVERSON, BGSU
"An Introduction to the Mathematics of Juggling"
ABSTRACT:  We will look at some preliminary combinatoric results,
discussed by Polster , concerning how to "count " the number of
juggling patterns.  We will also look at some  special semigroups
(monoids) inside of the symmetric group on the integers.

Tuesday, April 27, 2004

Wednesday, April 28, 2004

3:30 PM     Lukacs Lecture/Statistics Seminar   459 MSc
Dr. Leandro PARDO, BGSU Distinguished Lukacs Professor
"Statistical Inference based on Divergence Measures"

Thursday, April 29, 2004

11:30 AM    Dissertation Defense   459 MSc
Solomon HARRAR
"Linear Model Under Non-normality"

Friday, April 30, 2004

11:30 AM    Graduate Committee Meeting   459 MSc

**12:00 PM  Calendar Information due to Cyndi
for inclusion in next week's calendar listing**

5:00 PM     Graduate Student Senate & Shanklin Awards Ceremony
202B BTSU

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Cyndi.

Previous calendars are available here.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
May 9 - August 21, 2005

Week of May 9 - 15, 2005

Saturday, May 14, 2005

8:30 AM		Lukacs Conference	459 MSc

Week of May 16 - 22, 2005

Monday, May 16, 2005

11:00 AM	Visiting Guest Lecture	400 MSc
Dr. Hector SALAS, University of Puerto Rico at Mayaguez
"Pathological Hypercyclic Operators"
ABSTRACT:  We exhibit a hypercyclic operator whose square is not
hypercyclic. Our operator is necessarily unbounded since a result of
S. Ansari asserts that powers of a hypercyclic bounded operator are
also hypercyclic. We also exhibit an unbounded Hilbert space operator
whose non-zero vectors are hypercyclic.

Week of May 30 - June 5, 2005

Monday, May 30, 2005

Memorial Day Holiday - Office Closed

Week of June 13 - 19, 2005

Thursday, June 16, 2005

M.S. Comprehensive Examination (Applied Stat portion)

Week of June 20 - 26, 2005

Tuesday, June 21, 2005

Comprehensive Examinations

Thursday, June 23, 2005

Comprehensive Examinations

Week of June 27 - July 2, 2005

Monday, June 27, 2005

Applied Statistics Oral Examinations

Tuesday, June 28, 2005

Week of July 4 - 10, 2005

Monday, July 4, 2005

Independence Day Holiday - Office Closed

Sunday, July 10, 2005

PMET Workshop (continues through July 17th)

Week of July 11 - 17, 2005

Monday, July 11 - Sunday, July 17, 2005

PMET Workshop

Week of August 1 - 7, 2005

Saturday, August 6, 2005

Commencement

Week of August 15 - 21, 2005

Friday, August 19, 2005

8:00 AM		Opening Day Ceremony/Meetings

1:00 PM		115 Course Meeting		400 MSc

--

Department of Mathematics & Statistics
Bowling Green State University              Phone:  419-372-2638
Bowling Green OH 43403-0221                 FAX: 419-372-6092

WWW: http://www.bgsu.edu/departments/math/faculty/faculty-dir.html#Staff

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics and Statistics Calendar
August 29 - September 4, 2005

Special Notice:  Anyone wanting the Math & Statistics Tutoring Center staff
to explain our services to their classes should call 2-8009 or 2-9142 to
schedule a visit.  Reminder: If you haven't completed the instructor
permission form, please do so as soon as possible. Tutoring officially
begins Monday.

Monday, August 29, 2005

Tuesday, August 30, 2005

1:00 PM        Open Discussion - Undergraduate Degree Programs    459 MSc

2:30 PM        Analysis Seminar        400 MSc

2:30 PM        Advisory Committee Meeting    458 MSc

Wednesday, August 31, 2005

1:00 PM        Graduate Committee Meeting    400 MSc

2:30 PM        Statistics Committee Meeting    459 MSc

3:30 PM        Algebra Seminar        459 MSc
Dr. Warren Wm. McGovern
"Clean Rings"

Thursday, September 1, 2005

Department Office closed until 9:45 AM for Staff/College Meeting

1:00 PM        Undergraduate Committee Meeting        400 MSc

3:50 PM        Research Areas Seminar        459 MSc
Dr. Corneliu HOFFMAN
"Groups Acting on Things"

Friday, September 2 , 2005

Saturday, September 3, 2005

Sunday, September 4, 2005

Monday, September 5, 2005

NO CLASSES - OFFICES CLOSED - LABOR DAY

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of September 5 - 11, 2005

Monday, September 5, 2005

LABOR DAY - NO CLASSES - OFFICES CLOSED

Tuesday, September 6, 2005

1:00 PM        Open Discussion - Undergraduate Degree Programs    459 MSc
TOPIC:    The focus this week will be Math 131, 232, and 233.  Some issues:
How to better
coordinate these courses?  What topics should be covered, what topics
should be omitted?

2:30 PM        Calculus Seminar **Special Day/Time**    459 MSc
Professor Thomas A. HERN, BGSU
"Tangent Lines and Rates of Change"

3:30 PM        Department Meeting    459 MSc

3:30 PM        Analysis Seminar        400 MSc
Professor Kit C. CHAN, BGSU
"Construction of Operators with Prescribed Behavior
(by Grivaux), Part 1"

Wednesday, September 7, 2005

3:30 PM        Algebra Seminar        459 MSc
Dr. Warren Wm. McGOVERN, BGSU
"Clean Rings, II"

Thursday, September 8, 2005

3:50 PM        Research Areas Seminar        459 MSc
Dr. Elmas IRMAK, BGSU
"Mappingclass Groups"

Friday, September 9, 2005

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

3:30 PM        Refreshments served prior to the colloquium talk

3:45 PM        Colloquium        459 MSc
Dr. Friedhelm Schwarz, University of Toledo
"Java Applets and Computer-Aided Assessment"
ABSTRACT:  The talk will illustrate how we are incorporating technology in
In the first part we will look at some Maplets, these are java applets
created with Maple. E.g., the Differentiation Maplet is an
interactive learning object which can teach a student how to
calculate all derivatives in his or her calculus course.
The second part will deal with compter-aided assessment without
multiple choice. We will compare the commercial product MapleTA
with the noncommercial product AiM (Assessment in Mathematics). In
particular, we will look at the crucial issues of partial credit
and data analysis.

Saturday, September 10, 2005

Sunday, September 11, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of September 12 - 18, 2005

Monday, September 12, 2005

11:30 AM        Graduate Student Seminar        400 MSc

2:30 PM        Statistics Seminar    445 MSc
Dr. Craig L. ZIRBEL, BGSU
"Stochastic grammars for modeling RNA sequences"
ABSTRACT:  RNA molecules perform many essential functions inside the cells
of living organisms.  Similar RNA molecules occur in different species,
with small changes in the nucleotide sequence (letters A, C, G, and U) due
to random mutations over the course of evolution.  The challenge is to
model the sequence variability and commonality between different
organisms.  Because of the way in which RNA molecules fold over and
interact with themselves, the nucleotide sequence has complicated
long-range dependence which requires new types of probabilistic models to
be developed.  Stochastic grammars, which were first introduced to describe
human languages, have many of the essential features, and so are a good
starting point.

3:30 PM        Calculus Seminar        459 MSc
Hope BARBERA and Mary KOSHAR, BGSU
"MAPLE use and Euler's method"

Tuesday, September 13, 2005

1:00 PM        Open Discussion - Undergraduate Degree Programs    459 MSc
We will discuss Math 322, Discrete Mathematics.  What is the role of this
course in our programs?  What content topics should it contain?  Should we
redesign this course to better meet our needs?

2:30 PM        Advisory Committee Meeting    458 MSc

3:30 PM        Analysis Seminar        400 MSc
Professor Kit C. CHAN, BGSU
"Construction of Operators with Prescribed Behavior
(by Grivaux), Part 2"

5:30 PM        MATH 295H Seminar    459 MSc
Professor Steven M. Seubert, BGSU

Wednesday, September 14, 2005

1:00 PM        Graduate Committee Meeting    400 MSc

2:30 PM        Statistics Committee Meeting    459 MSc

3:30 PM        Algebra Seminar        459 MSc
Nicholas IMMORMINO, BGSU
"Clean Group Rings"

7:30 PM        Actuarial Science Society        459 MSc
Organizational/Planning Meeting

Thursday, September 15, 2005

1:00 PM        Undergraduate Committee Meeting        400 MSc

3:50 PM        Research Areas Seminar        459 MSc

Friday, September 16, 2005

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

Saturday, September 17, 2005

Sunday, September 18, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of September 19 - 25, 2005

Monday, September 19, 2005

2:30 PM        Statistics Seminar        459 MSc
Dr. Craig L. ZIRBEL, BGSU
"Stochastic grammars for modeling RNA sequences - Part II"

ABSTRACT: Part I covered some biochemistry and introduced the problem of
modeling the statistical variability of homologous RNA
for such sequences.  Because of the way in which RNA
molecules fold over and interact with themselves, the
nucleotide sequence has complicated long-range dependence
which requires new types of probabilistic models to be
developed. Stochastic grammars, which were first introduced
to describe human languages, have many of the essential
features, and so are a good starting point.  After a brief
description of the various kinds of grammars, we will see
how a simple stochastic grammar can reproduce many features
of RNA sequences.

3:30 PM        Calculus Seminar            459 MSc
Professor Steven M. SEUBERT, BGSU
"Hyperbolic Functions, Ocean Waves, and Resonance"

Tuesday, September 20, 2005

1:00 - 5:00 PM    Preliminary Examinations        459 MSc

3:30 PM        Analysis Seminar            400 MSc
Professor Kit C. CHAN, BGSU
"Construction of Operators with Prescribed Behavior
(by Grivaux), Part 3"

Wednesday, September 21, 2005

2:30 PM        Statistics Committee Meeting    459 MSc

3:30 PM        Algebra Seminar            459 MSc
Nicholas IMMORMINO, BGSU
"Clean Group Rings, Part 2"

Thursday, September 22, 2005

1:00 - 5:00 PM    Preliminary Examinations        459 MSc

Friday, September 23, 2005

12:00 Noon    Calendar Information Due to Cyndi (cpatter@bgnet.bgsu.edu)
for next week's calendar

3:30 PM        Refreshments served prior to the colloquium talk

3:45 PM        Colloquium            459 MSc
Professor Ivo HERZOG, Ohio State University - Lima
"Pseudo-Finite Dimensional Representations of  sl(2,k)"

ABSTRACT: A Pseudo-finite dimensional representation of the Lie algebra L =
sl(2,k)) is a module over the universal enveloping algebra U(L)
that satisfies the axioms of a finite dimensional representation.
We will show how all such representations may be induced from a von
Neumann regular epimorphic ring extension U(L) \subseteq U'(L).

Saturday, September 24, 2005

Sunday, September 25, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of September 26 - October 2, 2005

Monday, Septemmber 26, 2005

11:30 AM        Graduate Student Seminar        400 MSc
Sherwin TORIBIO, BGSU
"Some Bayesian Model Checking Strategies for
Dichotomous IRT Models"

2:30 PM        Statistics Seminar        459 MSc
Dr. Craig L. ZIRBEL, BGSU
"Stochastic grammars for modeling RNA sequences -
Part III"

ABSTRACT: Part I covered some biochemistry and introduced the problem of
modeling the statistical variability of homologous RNA sequences.
Part II introduced grammars, stochastic grammars, and a simple
grammar for RNA sequences.  Part III will begin with a detailed
discussion of parsing, the algorithm by which one determines the
highest probability way in which a grammar can generate a given
sequence.  After that, we will discuss highly specific grammars
designed to model variations among homologous RNA sequences, that
is, natural variations among RNA sequences from a specific RNA
molecule which is foundin many different organisms.

3:30 PM Calculus Seminar 459 MSc Dr. David E. MEEL, BGSU "Getting students
actively involved in learning calculus"

Tuesday, September 27, 2005

1:00 PM        Open Discussion - Undergraduate Degree Programs    459 MSc
TOPIC:  Calculus I differentiation chapters.

2:30 PM        Analysis Seminar            400 MSc
Professor Kit C. CHAN, BGSU
"Construction of operators with prescribed behavior
(by Grivaux), Part 4"

3:30 PM        Tenured Faculty Meeting        459 MSc

5:30 PM        Honors MATH 295 Seminar    459 MSc
Dr. Warren Wm. McGovern, BGSU
"Controversies in Mathematics"
ABSTRACT:  There have been several controversies throughout the history of
mathematics.  I will discuss two or three of these depending on the time.

Wednesday, September 28, 2005

1:00 PM        Graduate Committee Meeting    400 MSc

3:30 PM        Algebra Seminar            459 MSc
TBA

Thursday, September 29, 2005

1:00 PM        Undergraduate Committee Meeting    400 MSc

3:50 PM        Research Areas Seminar        459 MSc
Professor James H. ALBERT, BGSU
TBA

Friday, September 30, 2005

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

Saturday, October 1, 2005

Sunday, October 2, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of October 3 - 9, 2005

Monday, October 3, 2005

2:30 PM        Statistics Seminar        459 MSc
Dr. John T. CHEN, BGSU
"DNA Sequences, Microarray Technique and Multiple Comparisons"

ABSTRACT: The mysterious codes of DNA sequences have drawn considerable
attention of researchers from a variety of areas including
biologists and statisticians. In this regard, current technique of
micro-array experiments makes it possible for researchers to
collect huge data sets expressing part of the information of DNA
sequences. As a result, it posts challenges for statisticians to
carry out conventional data analysis using existing procedures.
One of such challenges causes the evolution of new terminologies in
multiple comparisons.

3:30 PM        Calculus Seminar            459 MSc

Tuesday, October 4, 2005

1:00 PM        Open Discussion - Undergraduate Degree Programs    459 MSc

3:30 PM        Department Meeting        459 MSc

5:30 PM        Honors MATH 295 Seminar    459 MSc
Dr. Craig L. ZIRBEL, BGSU
"Stochastic grammars for modeling RNA sequences"

ABSTRACT:  RNA molecules perform many essential functions inside the cells
of living organisms.  Similar RNA molecules occur in different species,
with small changes in the nucleotide sequence (letters A, C, G, and U) due
to random mutations over the course of evolution.  The challenge is to
model the sequence variability and commonality between different
organisms.  Because of the way in which RNA molecules fold over and
interact with themselves, the nucleotide sequence has complicated
long-range dependence which requires new types of probabilistic models to
be developed.  Stochastic grammars, which were first introduced to describe
human languages, have many of the essential features, and so are a good
starting point.

Wednesday, October 5, 2005

1:00 PM        Graduate Committee Meeting    400 MSc

3:30 PM        JOINT Algebra/Analysis Seminar    459 MSc
Dr. Rieuwert BLOK, BGSU
"Opposite complexes in buildings"
ABSTRACT:  The notion of opposite'' or far away'' for buildings is the
equivalent of
being in general position'' in algebraic geometry. I'll discuss the
importance of this notion
in the theory of (twin) buildings and describe its role in (my) current
research.

Thursday, October 6, 2005

3:50 PM        Research Areas Seminar        459 MSc

Friday, October 7, 2005

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

3:30 PM        Refreshments served prior to the colloquium talk

3:45 PM        Colloquium            459 MSC
Professor John SPURRIER, University of South Carolina at Columbia
"Comparing Two Regression Lines Over a Fixed Interval"

ABSTRACT: Exact one-sided and two-sided simultaneous hyperbolic
confidence bounds are developed for the difference of two simple
linear regression lines over a finite interval for the predictor
variable.  It is assumed that the errors are i.i.d. normal.  The
dual problem of testing equality of two regression lines is also
considered.  No restrictions are made on the values of the
predictor variable in the training samples.  After making a
suitable transformation, it is shown that the probability points
used in these bounds is a function of the size of an angle.  These
probability points are the root of an equation involving a
one-dimensional integral and are evaluated numerically.  It is
shown that these probability points come from the same
distributions used by Wynn and Bloomfield (1971) and Bohrer and
Francis (1972) to bound a single simple linear regression over a
finite interval.

Saturday, October 8, 2005

Sunday, October 9, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of October 10 - 16, 2005

Monday, October 10, 2005

FALL BREAK - no classes

Tuesday, October 11, 2005

FALL BREAK - no classes

Wednesday, October 12, 2005

2:30 PM        Statistics Committee Meeting    459 MSc

Thursday, October 13, 2005

1:00 PM        Undergraduate Committee Meeting        400 MSc

3:50 PM        Research Areas Seminar        459 MSc
TBA

Friday, October 14, 2005

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

Saturday, October 15, 2005

Sunday, October 16, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of October 17 - 23, 2005

Monday, October 17, 2005

3:30 PM        Calculus Seminar        459 MSc
"Reflections on Geometric Series Materials"

Tuesday, October 18, 2005

1:00 PM        Open Discussion - Undergraduate Degree Programs    459 MSc
TOPIC:  Coordinating courses to improve students' abilities to reason,
write proofs, and present
their work well.

3:30 PM        Analysis Seminar        400 MSc
Lynette BOOS, BGSU
"Some results in function algebras"

5:30 PM        Honors MATH 295 Seminar    459 MSc
Professor Steven M. SEUBERT, BGSU
"Advertising Honors MATH 395 for Spring Semester 2006"

Wednesday, October 19, 2005

12:30 PM        Undergraduate Committee Meeting    459 MSc
TOPIC:  Update on MATH 112/122 by John Gresser

3:30 PM        Algebra Seminar        459 MSc
Dr. Elmas IRMAK, BGSU
"Curve Complexes on Surfaces"

Thursday, October 20, 2005

Friday, October 21, 2005

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

12:00 Noon    Ohio Section MAA Meeting at Ashland University
For program, see:

Saturday, October 22, 2005

8:00 AM        Ohio Section MAA Meeting continues at Ashland University
For program, see:

Sunday, October 23, 2005

The Second SIAM Conference on Mathematics for Industry: Challenges and
Frontiers Detroit Marriott at Renaissance Center Detroit, Michigan USA
October 24-25-26, 2005

Major Conference Themes

* Supply Chains - Analysis and Management

* Reliability, Risk and Vulnerability

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of October 24 - 30, 2005

Monday, October 24, 2005

2:30 PM        Statistics Seminar    459 MSc
Dr. John T. CHEN, BGSU
"A Generator for Explicit Univariate Lower Bounds"

ABSTRACT: In this talk, we will discuss the method of indicator functions
and derive a general inequality for the probability that at least
one out of n events occurs. The result is in the spirit of the
early work of K. L. Chung (1941, 1943) and A. Renyi (1958) on
general bounds using Borel functions of Bonferroni summations. This
general method can be used to derive probability inequalities of
specific forms. In particular, we show that the new method can be
used to re-derive the celebrated Dawson-Sankoff degree-two lower
bound; to develop a degree-three bound that is complementary in
structure to the Sobel-Uppuluri-Galambos (degree-three) lower
bound; and to obtain a degree-three lower bound similar in
structure to the Dawson-Sankoff bound.  This talk is based on a
current joint work with Professor Eugene Seneta at the University
of Sydney.

3:30 PM        Calculus Seminar        459 MSc
Professor Steven SEUBERT, BGSU
"Reflections on the Geometric Series"

Tuesday, October 25, 2005

1:00 PM        Open Discussion - Undergraduate Degree Programs    459 MSc

TOPIC: Coordinating courses to improve students' abilities throughout
the program.

2:20 PM - 3:50 PM    Advisory Committee Meeting    458 MSc

5:30 PM        Honors MATH 295 Seminar    459 MSc
Professor James H. ALBERT, BGSU
"The Statistics of Baseball"

ABSTRACT: We'll discuss who the MVP in the Major League Baseball last year
should have been.

Wednesday, October 26, 2005

2:30 PM        Statistics Committee Meeting    459 MSc

3:30 PM        Algebra Seminar        459 MSc
Douglas PUHARIC, BGSU
"An Introduction to Fullerenes"

Thursday, October 27, 2005

1:00 PM        Undergraduate Committee Meeting        400 MSc

Friday, October 28, 2005

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

3:30 PM        Refreshments served prior to the colloquium talk

3:45 PM        Colloquium        459 MSc
Professor Phone Q. VU, Ohio University
"Lyapunov-Sylvester equations, sums of commuting operators and
theorems of Gearhart's type"

ABSTRACT: The well known Gearhart's spectral mapping theorem relates the
spectrum of the operator T(t) in a semigroup of operators on a
Hilbert space to the spectrum of its generator A, as well as to the
existence of periodic solutions of the differential equation
u'(t)=Au(t) + f(t).  We present a new approach to the Gearhart's
theorem which also enables us to obtain some essentially new
generalizations.  The new approach is based, from one side, on the
theory of almost periodic functions with values in Hilbert space,
in particular on Parseval's equality for almost periodic functions,
and from the other side, on results on sums of commuting operators
(which are closely related to results on Lyapunov-Sylvester
operator equations).  The generalizations are into two main
directions; namely, (i) to more general classes of equations than
the equation u'(t)=Au(t) + f(t) and (ii) to more general classes of
functions than periodic functions.  The proposed general approach
also sheds some new light to the original result of Gearhart.  No
prior knowledge in semigroup of operators or in almost periodic
functions is presumed.

Saturday, October 29, 2005

9:00 AM - 12:00 Noon    Preview Day     BTSU Ballroom

Sunday, October 30, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of October 31 - November 6, 2005

Monday, October 31, 2005

2:30 PM        Statistics Seminar    459 MSc
Dr. Junfeng SHANG, BGSU
"Diagnosis, Selection, and Multiple Comparisons in the
Mixed Modeling Framework"

ABSTRACT: Three problems in the mixed modeling framework, assessing
predictive influence, model selection, and Bayesian multiple
comparisons under order restrictions, are briefly discussed.

1. Diagnosis: a diagnostic defined in terms of the
Kullback-Leibler directed divergence is developed for
identifying cases which impact the prediction of the random
effects in a mixed model.

2. Selection: five bootstrap-corrected variants of AIC, denoted by
AICb1-AICb5, are proposed for the purpose of small-sample mixed
model selection.

3. Multiple comparisons: a Bayesian hierarchical model is proposed
for multiple comparisons in a mixed modeling framework under a
simple-order restriction.

3:30 PM        Calculus Seminar        459 MSc
Professor. Steven SEUBERT, BGSU
"TBA"

Tuesday, November 1, 2005

3:30 PM        Analysis Seminar        400 MSc
Lynette BOOS, BGSU
"More Results in Function Analysis"

5:30 PM        Honors MATH 295 Seminar    459 MSc
Dr. David MEEL, BGSU
"Developing student understanding through concept maps"

ABSTRACT: This talk will discuss the theory and construction of concept
maps as well as issues concerning their implementation as formative
and summative assessments of student knowledge.

Wednesday, November 2, 2005

3:30 PM        Algebra Seminar        459 MSc
Douglas PUHARIC, BGSU
"Fullerenes: Counting Pentagons and the poval"

Thursday, November 3, 2005

Friday, November 4, 2005

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

3:30 PM        Refreshments served prior to the colloquium talk

3:45 PM        Colloquium    459 MSc
Dr. Qin SHAO, University of Toledo
"Periodic Time Series Data Analysis"

Abstract: Periodic time series have received extensive attention due to
their broad application in climatology, hydrology, sociology, plant
physiology, and economics. I will focus on several aspects of
periodic time series data analysis. I will discuss in detail how to
fit a parsimonious and adequate model for a given periodic time
series, how to estimate the model parameters in the presence of
outliers, and how to model a periodic time series with asymmetric
or multi-model distribution. I will illustrate the proposed
techniques by simulation study and real data analysis.

Saturday, November 5, 2005

Sunday, November 6, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of November 7 - 13, 2005

Monday, November 7, 2005

11:30 AM        Graduate Student Seminar        400 MSc
Kevin DREES, BGSU
"Some Basic Results in BMOs"

2:30 PM        Statistics Seminar    459 MSc
Dhanuja KASTURIRATNA, BGSU
"Assessing the Distributional Assumptions in One-way Regression
Model"

ABSTRACT: In the one-way classification with k treatments, we assume that
the data are observed according to the additive model, where the
error random variables are independently and identically
distributed normally with mean zero and constant variance.  Then to
test whether a set of observed data are coming from above
regression model, we need to construct a test to test the
hypothesis that the observations of the treatment groups are
normally distributed with the same variance. In this talk, a
characterization of normal distribution related to two samples
based on second conditional moment is obtained. This
characterization is transformed to a characterization based on the
UMVU estimators of the density function. These results are
generalized to k samples from normal distributions. Next, the
location and scale parameters in the distributional assumption of
the regression model are eliminated by means of suitable
transformations on the original observations. The transformed
random variables are then shown to possess Student's t
distributions with known parameters under the null hypothesis. The
goodness-of-fit tests can then be performed on the transformed
variables. The powers of the tests are estimated by Monte Carlo
methods for several alternatives

3:30 PM        Calculus Seminar        459 MSc

Tuesday, November 8, 2005

Don't forget to VOTE!

1:00 PM        Open Discussion - Undergraduate Degree Programs    459 MSc

TOPIC: Proofs in linear algebra.  Let's make a short catalogue of types of
proof in linear algebra and consider how well we expect students to
be able to understand them, discover them, and write them.  Should
we adjust our expectations to prepare students for later courses?
Can courses before linear algebra help prepare students better for
what we want them to do in linear algebra?

2:30 PM        Analysis Seminar        400 MSc
George TURCU, BGSU
"TBA"

3:30 PM        Department Meeting    459 MSc

5:30 PM        Honors MATH 295 Seminar    459 MSc
Dr. Corneliu HOFFMAN, BGSU
"Planar graphs, Euler's theorem and algebraic topology"

Wednesday, November 9, 2005

3:30 PM        Algebra Seminar        459 MSc
Douglas PUHARIC, BGSU
"Fullerenes: The acute poval"

Thursday, November 10, 2005

12:00 PM        Calendar Information Due to Cyndi for inclusion on next
week's calendar

1:00 PM        Undergraduate Committee Meeting        400 MSc

Friday, November 11, 2005

VETERAN'S DAY - NO CLASSES - OFFICES CLOSED

Saturday, November 12, 2005

Sunday, November 13, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of November 14 - 20, 2005

Monday, November 14, 2005

11:30 AM        Graduate Student Seminar        400 MSc
Kevin DREES, BGSU
"Some Basic Results in BMOs, Part II"

3:30 PM        Calculus Seminar        459 MSc
Ray HEITGER, BGSU
"Classroom Role Model Behavior and Infinite Series"
ABSTRACT:  Results of a recent survey show that role model behavior is a
highly rated characteristic of a quality teacher.  Can we use it to turn
students on to mathematics?

Tuesday, November 15, 2005

1:00 PM        Open Discussion - Undergraduate Degree Programs    459 MSc

2:30 PM        Advisory Committee Meeting    458 MSc

3:30 PM        Analysis Seminar        400 MSc
George TURCU, BGSU
"TBA, Part II"

5:30 PM        Honors MATH 295 Seminar    459 MSc
Professor Neal L. CAROTHERS, BGSU
"A Little Taste of $\pi$"

Wednesday, November 16, 2005

3:30 PM        Algebra Seminar        459 MSc
Douglas PUHARIC, BGSU
"The Orange Peel Fullerenes"

Thursday, November 17, 2005

3:30 PM        Refreshments served prior to the colloquium talk

3:45 PM        Colloquium        459 MSc
Professor Emeritus John HARVEY, University of Wisconsin-Madison

Friday, November 18, 2005

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

3:30 PM        Panel Discussion on the Future of Science & Mathematics
206 BTSU

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of November 21 - 27, 2005

Monday, November 21, 2005

**12:00 Noon    Items to be included on next week's calendar due**

12:30 PM        Graduate Student Seminar        400 MSc
Ioan SECELEANU, BGSU
"Dimension Theory"

3:30 PM        Calculus Seminar        459 MSc
Ray HEITGER, BGSU
"Classroom Role Model Behavior and Infinite Series"
ABSTRACT:  Results of a recent survey show that role model behavior is a
highly rated characteristic of a quality teacher.  Can we use it to turn
students on to mathematics?

Tuesday, November 22, 2005

2:30 PM        Advisory Committee Meeting    458 MSc

3:30 PM        Analysis Seminar        400 MSc
Check with Dr. Bhs to see if George Turcu will be presenting

Wednesday, November 23, 2005

THANKSGIVING BREAK - NO CLASSES - OFFICES OPEN

Thursday, November 24, 2005

THANKSGIVING BREAK - NO CLASSES - OFFICES CLOSED - HAPPY THANKSGIVING!!

Friday, November 25, 2005

THANKSGIVING BREAK - NO CLASSES - OFFICES CLOSED

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of November 28 - December 4, 2005

Monday, November 28, 2005

11:30 AM        Graduate Student Seminar        400 MSc
Tanweer SHAPLA, BGSU
"Inference of Attributable Risk for a Dichotomous Risk Factor
under Cross-sectional Sampling Scheme"

3:30 PM        Calculus Seminar        459 MSc
Professor. Steven SEUBEERT, BGSU
"Plans for the Calculus Seminar for Spring 2006"

Tuesday, November 29, 2005

1:00 PM        Open Discussion - Undergraduate Degree Programs    459 MSc
"Graphing calculators and Maple in Calculus I, II, and III"

DISCUSSION POINTS: Let's talk about how and why we use the graphing
calculator and Maple in Calculus I, II, and III.  Should we use
them more?  Less?  How are they used, or should they be used, in
the remainder of the Mathematics curriculum?

Wednesday, November 30, 2005

Thursday, December 1, 2005

1:00 PM        Undergraduate Committee Meeting        400 MSc

Friday, December 2, 2005

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

3:30 PM        Refreshments served prior to the colloquium talk

3:45 PM        Colloquium
Professor G. Donald ALLEN, Texas A&M University
"Two interesting problems: (a)  What is a mean value, really? and
(b) How to arrange exam question for  optimum scores"

Saturday, December 3, 2005

Sunday, December 4, 2005

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of December 5 - 11, 2005

Monday, December 5, 2005

12:30 PM        Graduate Student Seminar        400 MSc
Nate IVERSON, BGSU
"Some mathematics of juggling"

2:30 PM        Statistics Seminar        459 MSc
Tanweer SHAPLA, BGSU
"Inference of Attributable Risk (AR) for a Dichotomous
Risk Factor Under Cross-sectional Sampling Scheme"

ABSTRACT: Attributable risk (AR) plays an important role in assessing the
relationship between the risk factor and the disease in public
health and biomedical sciences. It is defined as the proportion of
the disease cases that could be avoided if the risk factor were
totally eliminated from the population of interest. In this talk, I
will be presenting the existing methods for estimating attributable
risk and of its variance for a dichotomous risk factor under a
cross-sectional study design. We intend to propose the delta method
for estimating asymptotic variance of AR which involves much more
less computation compared to the existing method and can be
extended efficiently for multiple exposure levels. We are also
proposing small sample exact test for hypotheses regarding AR which
has never been considered before in this area.

Tuesday, December 6, 2005

1:00 PM        Open Discussion - Undergraduate Degree Programs    459 MSc

3:30 PM        Department Meeting    459 MSc

Wednesday, December 7, 2005

2:30 PM        Statistics Committee Meeting        459 MSC

3:30 PM        Statistics Search Committee Meeting    400 MSc

3:30 PM        Algebra Seminar        459 MSc
Drs. W. Charles HOLLAND and Warren Wm. McGOVERN, BGSU
"Cold Filters"

Thursday, December 8, 2005

2:30 PM - 4:30 PM    Departmental Holiday Gathering    459 MSc

Friday, December 9, 2005

**5:00 PM    Calendar Information Due to Cyndi for exam week and
the any activities which need to be included on the
calendar up through the beginning of Spring Semester 2006**

Saturday, December 10, 2005

Sunday, December 11, 2005

7:00PM - 9:00PM    KME Study Session        459 MSc

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Finals Week December 12 - 18, 2005 AND Winter Break December 19, 2005 -
January 9, 2006

Wednesday, December 14, 2005

Special Calculus Seminar:
Introduction to Maple for instructors and professors
9:00 a.m.- 11:00 a.m.
Scientific Computing Lab (2nd floor, MSC)
Mary Koshar

Learn the basics of Maple, or share your knowledge of Maple, and play
around with it to see if it would be useful to you and/or your students.
Examples will be geared toward calculus classes.

Friday, December 16, 2005

7:00 PM        Graduate College Commencement    Anderson Arena

Saturday, December 17, 2005

10:00 AM        A&S Undergraduate Commencement        Anderson Arena

Monday, December 19, 2005

9:00 AM        Grades DUE - ALL completed grade sheets must be returned
to Mary prior to 9:00 AM (or 2PM if you had a Friday exam)

Monday, January 9, 2006

8:30 AM        Spring Semester Begins
External Reviewers for Math/Stat Department Program Review
will be here on campus and in the department on
Monday, January 9 and Tuesday, January 10, 2006

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
September 9
Upcoming Colloquium Event

September 9, 2005

Prof. Friedhelm Schwarz , University of Toledo

Title: JAVA APPLETS AND COMPUTER-AIDED ASSESSMENT

Abstract:

The talk will illustrate how we are incorporating technology in our undergraduate courses.

In the first part we will look at some Maplets, these are java applets created with Maple. E.g., the Differentiation Maplet is an interactive learning object which can teach a student how to calculate all derivatives in his or her calculus course.   The second part will deal with compter-aided assessment without multiple choice. We will compare the commercial product MapleTA with the noncommercial product AiM (Assessment in Mathematics). In particular, we will look at the crucial issues of partial credit and data analysis.

September 23, 2005

Prof. Ivo Herzog , Ohio State University at Lima

Title: Pseudo-finite dimensional representations of sl(2,k)

Abstract:  A pseudo-finite dimensional representations of the Lie algebra L = sl(2,k) is a module over the universal enveloping algebra U(L) that satisfies the axioms of a finite dimensional representation. We will show how all such representations may be induced from a von Neumann regular epimorphic ring extension

October 7, 2005

Prof. John Spurrier, University of South Carolina at Columbia

Title: Comparing Two Regression Lines Over a Fixed Interval

Abstract:  Exact one-sided and two-sided simultaneous hyperbolic confidence bounds are developed for the difference of two simple linear regression lines over a finite interval for the predictor variable.  It is assumed that the errors are i.i.d. normal.  The dual problem of testing equality of two regression lines is also considered.  No restrictions are made on the values of the predictor variable in the training samples.  After making a suitable transformation, it is shown that the probability points used in these bounds is a function of the size of an angle.  These probability points are the root of an equation involving a one-dimensional integral and are evaluated numerically.  It is shown that these probability points come from the same distributions used by Wynn and Bloomfield (1971) and Bohrer and Francis (1972) to bound a single simple linear regression over a finite interval.

October 28, 2005

Prof. Phong Q. Vu, Ohio University

Title:  Lyapunov-Sylvester equations, sums of commuting operators and theorems of Gearhart's type

Abstract:  The well known Gearhart's spectral mapping theorem relates the spectrum of the operator T(t) in a semigroup of operators on a Hilbert space to the spectrum of its generator A, as well as to the existence of periodic solutions of the differential equation u'(t)=Au(t) + f(t).

We present a new approach to the Gearhart's theorem which also enables us to obtain some essentially new generalizations.  The new approach is based, from one side, on the theory of almost periodic functions with values in Hilbert space, in particular on Parseval's equality for almost periodic functions, and from the other side, on results on sums of commuting operators (which are closely related to results on Lyapunov-Sylvester operator equations).  The generalizations are into two main directions; namely, (i) to more general classes of equations than the equation u'(t)=Au(t) + f(t) and (ii) to more general classes of functions than periodic functions.  The proposed general approach also sheds some new light to the original result of Gearhart.

No prior knowledge in semigroup of operators or in almost periodic functions is presumed.

November 4, 2005

Dr. Qin Shao, University of Toledo

Title: Periodic Time Series Data Analysis

Abstract:  Periodic time series have received extensive attention due to their broad application in climatology, hydrology, sociology, plant physiology, and economics. I will focus on several aspects of periodic time series data analysis. I will discuss in detail how to fit a parsimonious and adequate model for a given periodic time series, how to estimate the model parameters in the presence of outliers, and how to model a periodic time series with asymmetric or multi-model distribution. I will illustrate the proposed techniques by simulation study and real data analysis.

Thursday, November 17, 2005

Emeritus Prof.  John Harvey, University of Wisconsin-Madison

Title: Mathematics Education: Reality or Fantasy?

Abstract:  This talk will discuss mathematics education in the present and future, especially collegiate mathematics education. Some of the topics will be reform efforts in mathematics curriculum and instruction, influences on mathematics education, and the need for increased research activity at the college level.

Friday, November 18, 2005

Panel Discussion:  The Future of Science and Mathematics at BGSU

Friday, December 2, 2005

Prof. G. Donald Allen, Texas A& M University

Title:  Two interesting problems: (a) What is a mean value, really? and (b) How to arrange exam question for optimum scores

Abstract:  Suppose we have n items to be placed on a test, and we can arrange the items in any order we wish. What is the best strategy for arranging problems on a test to achieve the highest possible test score average?    A number of possibilities come to mind.

1.      Placing the easy items first followed by the more difficult ones.
2.      Randomly placing items.
3.      Difficult items alternately precede easy items, or vice versa.

To answer these questions additional assumptions are needed, the foremost being some mathematical model of the effect of one question upon succeeding ones.  Leading theories of testing, such as Item Response Theory, make the strict assumption of item independence.  For example, if the test begins with a very difficult item, one which most students will not solve, will this event affect their state of mind, or confidence, toward solving subsequent problems?  This is the influence of one question upon another, and thus the inter-dependency of test items. Even the simplest model for test item dependencies involves some considerable mathematics, but mathematics not generally requiring extensive prior course work.  Hence these problems are accessible to students in their early college careers.  We intend to explore, simulate, and hopefully find meaningful answers about this problem.

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of January 16 - 22, 2006

Monday, January 16, 2006

Martin Luther King Day - NO CLASSES - OFFICES CLOSED

Tuesday, January 17, 2006

1:30 PM        Advisory Committee Meeting    458 MSc

Wednesday, January 18, 2006

3:30 PM        Calculus Seminar        459 MSc

3:30 PM        Algebra Seminar        400 MSc
Dr. Corneliu HOFFMAN, BGSU

Thursday, January 19, 2006

Friday, January 20, 2006

DSM Candidate Interviewing Today (candidate itinerary will be placed in mailboxes on Thursday)

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

3:30 PM        Refreshments served prior to the DSM Candidate's Research talk

3:45 PM        Colloquium

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of January 23 - 29, 2006

Monday, January 23, 2006

DSM Candidate will be interviewing in the department today

10:30 AM        Calculus Teacher's Forum        400 MSc

3:15 PM        Refreshments served prior to the DSM Research Talk

3:30 PM        DSM Candidate Research Talk

Tuesday, January 24, 2006

10:30 AM        Analysis Seminar            459 MSc
Dr. Juan P. es, BGSU
"Hypercyclic subspace in Omega"

1:00 PM        Graduate Committee Meeting    400 MSc

2:30 PM        Advisory Committee Meeting    458 MSc

Wednesday, January 25, 2006

3:30 PM        Calculus Seminar            459 MSc
Dr. David E. MEEL, BGSU
TOPIC:  Calculus problems from session at Annual Meeting

3:30 PM        Algebra Seminar            400 MSc
Dr. Corneliu HOFFMAN, BGSU
"TBA, Part II"

Thursday, January 26, 2006

Friday, January 27, 2006

3rd DSM Candidate interviewing in the department today

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

3:30 PM        Refreshments served prior to the DSM Research Talk

3:45 PM        DSM Candidate Research Talk

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of January 30 - February 5, 2006

Monday, January 30, 2006

10:30 AM        Calculus II Teacher's Forum    400 MSc
Professor Steven M. SEUBERT, BGSU
"Transcendental Functions"

Tuesday, January 31, 2006

10:30 AM        Analysis Seminar            459 MSc
Dr. Juan P. BÈS, BGSU
"Hypercyclic subspaces in Omega, part II"

1:00 PM        Graduate Committee Meeting    400 MSc

1:30 PM        Advisory Committee Meeting    458 MSc

3:30 PM        TENURED Faculty Meeting        459 MSc

Wednesday, February 1, 2006

9:00 AM        Statistics Group Meeting        400 MSc

3:30 PM        Calculus Seminar            459 MSc
Ray HEITGER, BGSU
"The Gresser Function and what I, the instructor,
learned in calculus class"

3:30 PM        Algebra Seminar            400 MSc
Dr. Rieuwert BLOK, BGSU
"Symplectic Grassmannians"

Thursday, February 2, 2006

Friday, February 3, 2006

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

3:30 PM        Refreshments served prior to the colloquium talk

3:45 PM        Colloquium - if there is to be a colloquium/research talk it will be
announced separately

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of February 6 - 12, 2006

Monday, February 6, 2006

Statistics Candidate Interviewing today

10:30 AM        Calculus Teacher's Forum        400 MSc

3:30 PM        Refreshments served prior to the candidate's research talk

3:45 PM        Research Talk        459 MSc

Tuesday, February 7, 2006

10:30 AM        Analysis Seminar            459 MSc
Dr. Juan BÈS, BGSU
"Hypercyclic subspace in Omega, Part 3"

7:30 PM        Actuarial Science Society Presentation    238 MSc
Amy SCHWABERO, Millman Consulting Company
"Careers for Actuaries"

Wednesday, February 8, 2006

9:00 AM        Statistics Group Meeting        400 MSc

3:30 PM        Calculus Seminar            459 MSc
Professor Neal L. CAROTHERS, BGSU
"Graphing in Calculus I"
Abstract:  I will hand out a full summary of my lectures on
graphing (sections 3.3 through 3.6 in Smith & Minton) along
with a problem set and a quiz.  No artistic ability required.

3:30 PM        Algebra Seminar            400 MSc
Dr. Rieuwert BLOK, BGSU
"Symplectic Grassmannians, Part II"

Thursday, February 9, 2006

Friday, February 10, 2006

Actuarial Science Candidate Interviewing today

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

3:30 PM        Refreshments served prior to the candidate's research talk

3:45 PM        Research Talk        459 MSc

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of February 13 - 19, 2006

Monday, February 13, 2006

Statistics Candidate Interviewing today

10:30 AM        Calculus Teacher's Forum        400 MSc

3:30 PM        Refreshment served prior to Research Talk

3:45 PM        Statistics Candidate Research Talk        459 MSc
Title/Abstract will be posted in AM

Tuesday, February 14, 2006

10:30 AM        Analysis Seminar            459 MSc
Dr. Juan P. BÈS, BGSU
"Hypercyclic subspace in Omega, Part 4"

Wednesday, February 15, 2006

Statistics Candidate Interviewing today

9:00 AM        Statistics Group Meeting        400 MSc

3:30 PM        Algebra Seminar            400 MSc
Dr. Elmas IRMAK, BGSU

3:30 PM        Refreshment served prior to Research Talk

3:45 PM        Statistics Candidate Research Talk        459 MSc
Title/Abstract will be posted in AM

Thursday, February 16, 2006

Friday, February 17, 2006

Actuarial Science Candidate Interviewing today

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

3:30 PM        Refreshments served prior to the colloquium talk

3:45 PM        Actuarial Science Candidate Research Talk    459 MSc
Title/Abstract will be posted in AM

Saturday, February 18, 2006

Sunday, February 19, 2006

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of February 20 - 26, 2006

Monday, February 20, 2006

Actuarial Science candidate will be interviewing today

President's Day Open House - prospective students and their parents will be on campus

10:30 AM        Calc I Teacher's Forum        400 MSc
"Optimization"

3:30 PM        Refreshments served prior to candidates research talk    400 MSc

3:45 PM        Actuarial Science candidate Research Talk    459 MSc

Tuesday, February 21, 2006

10:30 AM        Analysis Seminar            459 MSc
Ozgur MARTIN, BGSU
"Birkhoff Theorem"

1:30 PM        Advisory Committee Meeting    458 MSc

7:00 PM        KME Presentation            459 MSC
"Early History of Mathematics"

Wednesday, February 22, 2006

9:00 AM        Statistics Group Meeting        400 MSc

3:30 PM        Calculus Seminar            459 MSc
Professor Steven SEUBERT, BGSU
"Modular arithmetic, inverse trig functions, and
Parkinson's disease"

3:30 PM        Algebra Seminar            400 MSc
Dr. Elmas IRMAK, BGSU
"Mapping Class Groups"

Thursday, February 23, 2006

Friday, February 24, 2006

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of February 27 - March 5, 2006

Monday, February 27, 2006

10:30 AM        Calculus Teacher's Forum        400 MSc

Tuesday, February 28, 2006

10:30 AM        Analysis Seminar            459 MSc
Ozgur MARTIN, BGSU
"Birkhoff Theorem, Part 2"

1:30 PM        Advisory Committee Meeting    458 MSc

Wednesday, March 1, 2006

9:00 AM        Statistics Group Meeting        400 MSc

9:30 AM        Statistics Seminar        400 MSc
Dr. John T. CHEN, BGSU
"Simultaneous Comparisons of Binomial Proportions
for the Inference of Minimum Effective Dose"

2:30 PM        Graduate Student Seminar        400 MSc
Michael SARVER, BGSU
"Structural alignment of homologous RNA sequences"

3:30 PM        Algebra Seminar            400 MSc
Dr. Warren Wm. McGOVERN, BGSU
"Frames, Part II"

Thursday, March 2, 2006

3:30 PM        Tenured/Tenure-Track Faculty Meeting        459 MSc

Friday, March 3, 2006

12:00 Noon    Calendar Information Due to Cyndi for TWO weeks from now
(3/13-19)

3:30 PM        Refreshments served prior to the colloquium talk

3:45 PM        Colloquium

Saturday, March 4, 2006 - Sunday, March 12, 2006

SPRING BREAK

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of March 13 - 19, 2006

Monday, March 13, 2006

DSM Candidate Interviewing in department today

10:30 AM        Calc I Teacher's Forum        400 MSc

3:30 PM        DSM Candidate Research Talk    459 MSc

Tuesday, March 14, 2006

10:30 AM        Analysis Seminar            459 MSc
Dr. Alexander IZZO, BGSU
"Algebras generated by the disc algebra and bounded
harmonic functions"

Wednesday, March 15, 2006

9:00 AM        Statistics Group Meeting        400 MSc

9:30 AM        Statistics Seminar        459 MSc
Professor James H. ALBERT, BGSU
"Bayesian Gene Selection"

2:30 PM        Graduate Student Seminar        400 MSc
Michael SARVER, BGSU
"Structural alignment of homologous RNA sequences,
Part II"

3:30 PM        Calculus Seminar            459 MSc
Professor W. Charles HOLLAND, BGSU
"To infinity and beyond...with Archimedes"

3:30 PM        Algebra Seminar            400 MSc
Dr. Elmas IRMAK, BGSU
"Mapping Class Groups"

Thursday, March 16, 2006

Friday, March 17, 2006

Last Day to Withdraw Pass (with signature)

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of March 20 - 26, 2006

Monday, March 20, 2006

10:30 AM        Calculus Technology Demonstration        459 MSc

Tuesday, March 21, 2006

10:30 AM        Analysis Seminar            459 MSc
Dr. Alex IZZO, BGSU
"Algebras generated by the disc algebra and bounded
harmonic functions, Part 2"

1:30 PM        Personnel Committee Meeting    458 MSc

Wednesday, March 22, 2006

9:00 AM        Statistics Group Meeting        400 MSc

9:30 AM        Statistics Seminar        459 MSc
Dr. Hamparsum BOZDOGAN, University of Tennessee
McKenzie Professor of Business, Information Complexity,
and Model Selection
"Intelligent Statistical Data Mining with Information
Complexity and Genetic Algorithms"

3:30 PM        Calculus Seminar            459 MSc
Prof. Lewis FULCHER, BGSU, Physics & Astronomy
"Calculus challenges faced by students in PHYS 211 &
PHYS 212"

3:30 PM        Algebra Seminar            400 MSc
Dr. Elmas IRMAK, BGSU
"Mapping Class Groups II"

Thursday, March 23, 2006

7:00 PM        KME Presentation            459 MSc
Dr. Laszlo Lempert, Purdue University
"Fixed Point Theorems"

Friday, March 24, 2006

DSM Candidate Interviewing in department today

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

2:30 PM        DSM Research Talk        459 MSc

3:30 PM        Refreshments served between DSM Research Talk and Colloquium

3:45 PM        COLLOQUIUM            459 MSC
Dr. Laszlo LEMPERT, Purdue University
Area:  Complex Analysis

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of March 27 - April 2, 2006

Monday, March 27, 2006

10:30 AM        Calc I Teacher's Forum        400 MSc

Tuesday, March 28, 2006

10:30 AM        Analysis Seminar            459 MSc
George TURCU, BGSU
"Birkhoff Open Sets"

1:00 PM        Graduate Committee Meeting    400 MSc

1:30 PM        Advisory Committee Meeting    458 MSc

Wednesday, March 29, 2006

9:00 AM        Statistics Group Meeting        400 MSc

9:30 AM        Statistics Seminar        400 MSc
Professor James H. ALBERT, BGSU
"Bayesian Gene Selection"

3:30 PM        Calculus Seminar            459 MSc
Professor Steven M. SEUBERT, BGSU
"The Mathematical Theory of Knots and the Study
of DNA and Enzymes"

3:30 PM        Algebra Seminar            400 MSc
TBA

Thursday, March 30, 2006

10:15 a.m.    Personnel Committee        459 MSc

Friday, March 31, 2006

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

12:00 Noon    Registration Begins for the Spring MAA Ohio Section Meeting
University of Akron
see complete program at:

Saturday, April 1, 2006

(remember to turn your clocks ahead  1  hour before you go to bed tonight)

8:00 a.m.        Ohio Section MAA Meeting Continues
University of Akron

Sunday, April 2, 2006

DAYLIGHT SAVINGS TIME BEGINS

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of April 3 - 9, 2006

Monday, April 3, 2006

10:30 AM        Calc II Teacher's Forum        400 MSc

Tuesday, April 4, 2006

12:30 AM        Analysis Seminar            459 MSc
George TURCU, BGSU
"Birkhoff Open Sets, Part 2"

1:30 PM        Advisory Committee Meeting    458 MSc

3:30 PM        TENURED Faculty Meeting        459 MSc

Wednesday, April 5, 2006

9:00 AM        Statistics Group Meeting        400 MSc

9:30 AM        Statistics Seminar        459 MSc
Dr. Junfeng SHANG, BGSU
"Parameter Estimation Under Order Restriction"

3:30 PM        Calculus Seminar            459 MSc
Professor Lewis FULCHER, BGSU, Physics & Astronomy
"Calculus challenges faced by students in PHYS 211 &
PHYS 212, Part 2"

3:30 PM        Algebra Seminar            400 MSc

Thursday, April 6, 2006

Friday, April 7, 2006

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of April 10 - 16, 2006

Monday, April 10, 2006

10:30 AM        Calc I Teacher's Forum        400 MSc
"Favorite Integration Applications"

Tuesday, April 11, 2006

10:30 AM        Analysis Seminar            459 MSc
Irina SECELEANU, BGSU
"Super Cyclicity of the Volterra Operator"

1:00 PM        Graduate Committee Meeting    400 MSc

1:30 PM        Advisory Committee Meeting    458 MSc

Wednesday, April 12, 2006

9:00 AM        Statistics Group Meeting        400 MSc

3:30 PM        Calculus Seminar            459 MSc
Professor Neal L. CAROTHERS, BGSU
"Area and Volume Without Formulas"
Abstract: I will briefly outline my approach to area, volume, arc length,
surface area, etc.  I will include several handouts that I use in class,
along with a couple of calculator projects.

3:30 PM        Algebra Seminar            400 MSc
Dr. Corneliu HOFFMAN, BGSU
"Quasi-Phan Theorems for Symplectic Groups, Part II"

Thursday, April 13, 2006

10:15 AM        Personnel Committee Meeting    459 MSc

Friday, April 14, 2006

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of April 17 - 23, 2006

Monday, April 17, 2006

1:00 PM        Calculus Technology Demonstration      459 MSc

Tuesday, April 18, 2006

10:30 AM        Analysis Seminar            459 MSc
Irina SECELEANU, BGSU
"Perturbation of Hypercyclic Vectors (N. Feldman)"

1:00 PM        Graduate Committee Meeting    400 MSc

1:30 PM        Advisory Committee Meeting    458 MSc

6:30 PM        College of Arts & Sciences Undergraduate Awards Ceremony
202 BTSU

Wednesday, April 19, 2006

9:00 AM        Statistics Group Meeting        400 MSc

3:30 PM        Calculus Seminar            459 MSc
"The Changing Face of Calculus:  Engineering Math
at the University of Iowa," by Keith Stroyan
AND
Professor Steven SEUBERT, BGSU
Year-End Wrap-Up

3:30 PM        Algebra Seminar            400 MSc
Dr. Corneliu HOFFMAN, BGSU
"Flips in Affine Twin Buildings, Part I"

Thursday, April 20, 2006

Statistics Candidate will be interviewing the department today

1:30 PM        Statistics Candidate Research Talk      459 MSc

7:00 PM        Kappa Mu Epsilon Presentation    459 MSc
Lauren HOFFMAN
"Comparative Study on Mathematics Teaching in
Japan and the U.S."
ABSTRACT: Many differences and some similarities exist between how
mathematics is taught in Japan and the U.S. The two countries have
different teaching philosophies, which explain many of the differences in
their lessons. The U.S. focuses on mastering procedural skills as opposed
to Japan who concentrates on problems with multiple steps. Overall Japanese
students spend more time working on mathematics because they spend more
time in the classroom and use resources outside of the classroom to
learn. Despite knowing these differences, teaching is cultural and slow to
change, which makes improving the U.S. teaching system difficult.  Pizza

Friday, April 21, 2006

12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

3:30 PM        Refreshments served prior to the colloquium talk

3:45 PM        Colloquium            459 MSc
Professor Michael KUTNER, Emory University
"Analysis of Fixed Effects ANOVA Models with Missing Cells"

ABSTRACT: Many standard statistical software programs claim to "handle"
fixed effects ANOVA models when some of the cells do not contain data
(missing cell problem).  Simple examples using SAS and SPSS will be given
documenting how these programs "handle" the missing cells.  Surprisingly,
these computer packages generally handle these situations differently.  The
sources of these difficulties will be delineated. Experimental design
models, such as balanced incomplete block design, will be shown to be
special cases.

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Weeks of April 24 through August 21, 2006

Monday, April 24, 2006
10:30 AM        Calc I & II Teacher's Forum    400 MSc
"Year-End Synopsis"

Tuesday, April 25, 2006
Statistics Candidate will be Interviewing in Department today

10:30 AM        Analysis Seminar            459 MSc
George TURCU, BGSU
"Birkhoff Sets, Part 3"

3:30 PM        Statistics Candidate Research Talk      459 MSc

Wednesday, April 26, 2006
9:00 AM        Statistics Group Meeting        400 MSc

3:30 PM        Algebra Seminar            400 MSc
Dr. Rieuwert BLOK, BGSU
"Flips in Affine Twin Buildings, Part 2"

Thursday, April 27, 2006
1:30 PM        Advisory Committee Meeting    458 MSc

Friday, April 28, 2006
12:00 Noon    Calendar Information Due to Cyndi for next week's calendar

Sunday, April 30, 2006
7:00 PM        KME Study Session        459 MSc

Monday, May 1, 2006
8:30 AM        FINAL EXAMS BEGIN

7:00 PM        KME Study Session        459 MSc

Tuesday, May 2, 2006
8:30 AM        FINAL EXAMS CONTINUE

Wednesday, May 3, 2006
8:30 AM        FINAL EXAMS CONTINUE

Thursday, May 4, 2006
8:30 AM        FINAL EXAMS CONTINUE

Friday, May 5, 2006
8:30 AM        LAST DAY OF FINAL EXAMS

Saturday, May 6, 2006
9:30 AM        Arts & Sciences Undergraduate Commencement
Anderson Arena

Monday, May 8, 2006
in to Mary in 450 MSc, we will take them to R&R)

Monday, May 15, 2006
1st 6-week Summer Session begins

The Math & Stats Tutoring Center will be open this summer
Monday through Thursday 7:30 a.m. - 5:00 p.m. and Friday 7:30 a.m. - 11:30 a.m.
except on university holidays

Monday, May 29, 2006
MEMORIAL DAY - NO CLASSES - OFFICES CLOSED

Monday, June 12, 2006
8-week Summer Session begins

Monday, June 19, 2006
Math/Stat Summer Fellowship students arrive this week

Monday, June 26, 2006
2nd 6-week Summer Session begins

Tuesday, July 4, 2006
Independence Day - NO CLASSES - OFFICES CLOSED

Saturday, August 5, 2006
Commencements

Monday, August 7, 2006
CIP Orientation Program begins for new International graduate students

Monday, August 14, 2006

Coordinated MATH course meetings will take place (watch email for scheduled times)

New Faculty Orientation Program begins

Friday, August 18, 2006
Opening Day Activities for Faculty (watch email for schedule)

3:30 PM        Department Meeting        459 MSc

Monday, August 21, 2006
Fall Semester 2006 Begins

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Weeks of April 30 through August 21, 2006

Sunday, April 30, 2006
7:00 PM           KME Study Session               459 MSc

Monday, May 1, 2006
8:30 AM               FINAL EXAMS BEGIN

7:00 PM                KME Study Session               459 MSc

Tuesday, May 2, 2006
8:30 AM              FINAL EXAMS CONTINUE

9:00 AM         Dissertation Defense    459 MSc
Douglas Puharic

Wednesday, May 3, 2006
8:30 AM            FINAL EXAMS CONTINUE

2:30 PM         Visiting Scholar Lecture        459 MSc
Professor Zhaohui Li, George Washington University
"Potential impact of population stratification on
population-based case-control association studies"

Thursday, May 4, 2006
8:30 AM            FINAL EXAMS CONTINUE

Friday, May 5, 2006
8:30 AM          LAST DAY OF FINAL EXAMS

Saturday, May 6, 2006
9:30 AM               Arts & Sciences Undergraduate Commencement
Anderson Arena

Monday, May 8, 2006
in to Mary in 450 MSc, we will take them to R&R)

Thursday, May 11, 2006
10:30 AM                Dissertation Defense    400 MSc
Lynette BOOS

Monday, May 15, 2006
1st 6-week Summer Session begins

The Math & Stats Tutoring Center will be open this summer
Monday through Thursday 7:30 a.m. - 5:00 p.m. and Friday 7:30 a.m. - 11:30 a.m.
except on university holidays

Friday, May 19, 2006
2:00 PM         Dissertation Defense    459 MSc
Sherwin TORIBIO

Monday, May 29, 2006
MEMORIAL DAY - NO CLASSES - OFFICES CLOSED

Tuesday, May 30, 2006
11:00 AM                Visiting Scholar Lecture        400 MSc
Professor Ioannis KARATZAS, Columbia University

Wednesday, June 1, 2006
11:00 AM                Visiting Scholar Lecture        400 MSc
Professor Ioannis KARATZAS, Columbia University

Thursday, June 2, 2006
11:00 AM                Visiting Scholar Lecture        400 MSc
Professor Ioannis KARATZAS, Columbia University

Friday, June 3, 2006
11:00 AM                Visiting Scholar Lecture        400 MSc
Professor Ioannis KARATZAS, Columbia University

Tuesday, June 6, 2006
1:00 PM         Dissertation Defense    459 MSc
Khairul ISLAM

Monday, June 12, 2006
8-week Summer Session begins

Friday, June 16, 2006
9:00 AM         Dissertation Defense    459 MSc
Michael SARVER

Monday, June 19, 2006
Math/Stat Summer Fellowship students arrive this week

Visiting Scholar, Ajit TAMAHANE, will be speaking this week
in scheduled talks (watch email for details)

Tuesday, June 20, 2006
1:00 PM         Comprehensive Examinations      459 MSc

Thursday, June 22, 2006
1:00 PM         Comprehensive Examinations      459 MSC

Monday, June 26, 2006
2nd 6-week Summer Session begins

Tuesday, July 4, 2006
4th of July - NO CLASSES - OFFICES CLOSED

Saturday, August 5, 2006
Commencements

Monday, August 7, 2006
CIP Orientation Program begins for new International graduate students

Monday, August 14, 2006

10:30 AM                GradSTEP Program        459 MSc
**Coordinated MATH course meetings will take place sometime this week**
(watch email for a scheduled time...the coordinator will send email to all involved)

New Faculty Orientation Program begins

Tuesday, August 15, 2006
1:30 PM         GradSTEP Program        459 MSc

Thursday, August 17, 2006
1:30 PM         GradSTEP Program        459 MSc

Friday, August 18, 2006
Opening Day Activities for Faculty (watch email for schedule)
11:30 AM                GradSTEP Program        459 MSc

3:30 PM         Department Meeting              459 MSc

Monday, August 21, 2006
Fall Semester 2006 Begins

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Weeks of April 30 through August 21, 2006

The Math & Stats Tutoring Center will be open this summer
Monday through Thursday 7:30 a.m. - 5:00 p.m. and Friday 7:30 a.m. - 11:30 a.m.
except on university holidays

Monday, May 29, 2006
MEMORIAL DAY - NO CLASSES - OFFICES CLOSED

Tuesday, May 30, 2006
11:00 AM                Lukacs Lecture                  459 MSc
Professor Ioannis KARATZAS, Columbia University
Stochastic portfolio theory

Wednesday, June 1, 2006
11:00 AM                Lukacs Lecture                  459 MSc
Professor Ioannis KARATZAS, Columbia University
Stochastic portfolio theory

Thursday, June 2, 2006
11:00 AM                Lukacs Lecture                  459 MSc
Professor Ioannis KARATZAS, Columbia University
Stochastic portfolio theory

Friday, June 3, 2006
11:00 AM                Lukacs Lecture                  459 MSc
Stochastic portfolio theory
Professor Ioannis KARATZAS, Columbia University

Tuesday, June 6, 2006
1:00 PM         Dissertation Defense    459 MSc
Khairul ISLAM

Monday, June 12, 2006
8-week Summer Session begins

Monday, June 12, 2006
11:00 AM                Lukacs Lecture                  459 MSc
Professor Donald RICHARDS, Pennsylvania State University
The St. Petersburg paradox and the quantification of
irrational exuberance

Tuesday, June 13, 2006
11:00 AM                Lukacs Lecture                  459 MSc
Professor Donald RICHARDS, Pennsylvania State University
Models for investors in real-world markets

Wednesday, June 14, 2006
11:00 AM                Lukacs Lecture                  459 MSc
Professor Donald RICHARDS, Pennsylvania State University
What works in the financial markets

Thursday, June 15, 2006
11:00 AM                Lukacs Lecture                  459 MSc
Professor Donald RICHARDS, Pennsylvania State University
The abyss between value investing and financial engineering

Friday, June 16, 2006
9:00 AM         Dissertation Defense    459 MSc
Michael SARVER

Monday, June 19, 2006
Math/Stat Summer Fellowship students arrive this week

Visiting Scholar, Ajit TAMAHANE, will be speaking this week.

Visiting Scholar, D.K. NAGAR, will be speaking this week and next.

Tuesday, June 20, 2006
1:00 PM         Comprehensive Examinations      459 MSc

Thursday, June 22, 2006
1:00 PM         Comprehensive Examinations      459 MSC

Monday, June 26, 2006
2nd 6-week Summer Session begins

Tuesday, July 4, 2006
4th of July - NO CLASSES - OFFICES CLOSED

Saturday, August 5, 2006
Commencements

Monday, August 7, 2006
CIP Orientation Program begins for new International graduate students

Monday, August 14, 2006

10:30 AM                GradSTEP Program        459 MSc
**Coordinated MATH course meetings will take place sometime this week**
(watch email for a scheduled time...the coordinator will send email to all involved)

New Faculty Orientation Program begins

Tuesday, August 15, 2006
1:30 PM         GradSTEP Program        459 MSc

Thursday, August 17, 2006
1:30 PM         GradSTEP Program        459 MSc

Friday, August 18, 2006
Opening Day Activities for Faculty (watch email for schedule)
11:30 AM                GradSTEP Program        459 MSc

3:30 PM         Department Meeting              459 MSc

Monday, August 21, 2006
Fall Semester 2006 Begins

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of August 14 - 21, 2006

Monday, August 14, 2006

10:30 AM                GradSTEP Program        459 MSc

**Coordinated MATH course meetings will take place sometime this week**
(watch email for a scheduled time...the coordinator will send email to all involved)

Tuesday, August 15, 2006
1:30 PM         GradSTEP Program        459 MSc

Thursday, August 17, 2006
1:30 PM         GradSTEP Program        459 MSc

Kiwanis Memorial Shelter House
BG City Park

Friday, August 18, 2006
Opening Day Activities for Faculty (watch email for schedule)

11:30 AM	GradSTEP Program        459 MSc

3:30 PM         Department Meeting              459 MSc

Monday, August 21, 2006
Fall Semester 2006 Begins

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Department of Mathematics & Statistics Calendar
Week of August 21 - 27, 2006

Monday, August 21, 2006

CLASSES BEGIN

3:30 PM		Calculus I Teacher's Forum	400 MSc
TOPIC:	Changes reflected in the 3rd edition of the Smith/Minton calc book

Tuesday, August 22, 2006

Wednesday, August 23, 2006

Thursday, August 24, 2006

Friday, August 25, 2006

12:00 Noon	Calendar Information Due to Cyndi for next week's calendar

3:30 PM		Colloquium				459 MSc
Professor W. Charles Holland
Bowling Green State University
"Multi-valued logic, quantum mechanics, and
the world of lattice groups"
ABSTRACT:  More than 100 years ago the difficulties  Newtonian mechanics had in dealing with small objects gave rise to quantum mechanics, and one way of understanding this was to change two-valued "true-false" logic to multi-valued logic.  At about the same time, lattice groups arose as an attempt to describe measurement in an abstract way.  These various subjects have been intensively studied since then, but only recently has it been discovered that they are intimately connected.  In this talk, I will discuss the history of the topics, and describe the recent explosion of activity concerning the connection between them.

Saturday, August 26, 2006

Sunday, August 27, 2006

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of August 28 - September 3, 2006

Monday, August 28, 2006

Tuesday, August 29, 2006

Wednesday, August 30, 2006

3:30 PM		Calculus Seminar			459 MSc
Organizational Meeting

3:30 PM		Statistics Seminar		445 MSc
Dr. John  T. CHEN, BGSU
"On Hoppe's Urn and Ewens' Sampling Formula"

Thursday, August 31, 2006

3:50 PM		Graduate Committee Meeting	400 MSc

Friday, September 1, 2006
Last Day to Report Incomplete Grades from Spring 2006 for Graduate Level Classes

11:30 AM		Algebra Seminar			400 MSc
Organizational Meeting

Information for next week's calendar due to Cyndi by Noon

Saturday, September 2, 2006

Sunday, September 3, 2006
Last Day to Drop a Class Without Written Permission

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of September 4 - 10, 2006

Monday, September 4, 2006

LABOR DAY - NO CLASSES - OFFICES CLOSED

Tuesday, September 5, 2006

Wednesday, September 6, 2006

11:30 AM		Statistics Groups Meeting		400 MSc

3:30 PM		Statistics Seminar		445 MSc
Dr. Junfeng SHANG, BGSU
"Model Selection Criteria Based on
the Kullback- Leibler Discrepancy "

Thursday, September 7, 2006

3:30 PM		Calculus Seminar			459 MSc
Professor Timothy FUERST, BGSU
Department of Economics
"Using Calculus to Explore Economics"

Friday, September 8, 2006

11:00 AM - 1:00 PM	All Campus Picnic

11:30 AM		Algebra Seminar			400 MSc
Professor W. Charles HOLLAND, BGSU

12:00 Noon	Calendar Information Due to Cyndi for next week's calendar

3:30 PM		Refreshments served prior to the colloquium

3:45 PM		Colloquium			459 MSc
Dr. David E. MEEL, BGSU
"Concept Maps: Do They Provide a Stable Window
Into Student Understanding?"
ABSTRACT:  This study explores the efficacy of using concept mapping as a framework for examining
the understandings of linear algebra concepts held by students. In particular, this 3+ year long study
looked at the ability of a concept map to provide an external representation of student internal linkages
and whether it can serve as a stable representation across occasions. By examining both quantitative
and qualitative data connected to the development of concept maps and analyzing this data from the
perspective of understanding as generating concept images and concept definitions, as described by
Tall, Vinner, and Harel, this study reveals that concept mapping does not always provide, for the students,
a teacher, or a researcher, a stable image of student conceptual understanding. In particular, this study
points to the conclusion that concept mapping, although a useful instructional tool, can only reveal evoked
connections and even when the same prompt is used within a week, most students reveal some instability
where links are either added or subtracted. For some students, wholesale reorganization of concept maps
reveal alternative forms of representation that indicate multiple levels of connections that cannot be
represented through static concept maps.

Saturday, September 9, 2006

Sunday, September 10, 2006

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of September 11 - 17, 2006

Monday, September 11, 2006

3:30 PM		Calculus I Teacher's Forum	400 MSc
Prof. Steven M. SEUBERT, BGSU
"Lithotripsy and Designing Telescopes"

Tuesday, September 12, 2006

Wednesday, September 13, 2006

12:30 PM		Advisory Committee		458 MSc

12:30 PM		Frame Theory Seminar	459 MSc
Professor Wolf IBERKLEID, Visiting Professor BGSU

3:30 PM		Statistics Seminar		445 MSc
Professor James H. ALBERT, BGSU
"Introduction to Bayesian Model Selection"

Thursday, September 14, 2006

1:30 PM		Analysis Seminar			400 MSc
Dr. Juan Bès, BGSU
"Disjointness in Hypercyclicity"

3:30 PM		Calculus Seminar			459 MSc
Professor Timothy FUERST, BGSU
Department of Economics
"Using Calculus to Explore Economics, II"

Friday, September 15, 2006

11:30 AM		Algebra Seminar			400 MSc
Dr. Rieuwert BLOK, BGSU
"Finite Simple Groups"

12:00 Noon	Calendar Information Due to Cyndi for next week's calendar

3:30 PM		Refreshments served prior to the colloquium

3:45 PM		Colloquium			459 MSc
Professor Ron SOLOMON, Ohio State University
ABSTRACT:  This talk will focus on some of the things I don't understand
related to sporadic simple groups.  The talk will be mostly questions and
speculation.

Saturday, September 16, 2006

Sunday, September 17, 2006

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of September 18 - 24, 2006

Monday, September 18, 2006

3:30 PM		Calculus II Teacher's Forum	400 MSc

Tuesday, September 19, 2006

3:45 PM		Tenured/Tenure-Track Faculty Meeting	459 MSc

Wednesday, September 20, 2006

12:30 PM		Advisory Committee		458 MSc

12:30 PM		Frame Theory Seminar		459 MSc
Professor Wolf Iberkleid, BGSU Visiting Professor

3:30 PM		Calculus Seminar			459 MSc
Professor Thomas HERN, BGSU
"Optimizing Multivariable Functions"

3:30 PM		Statistics Seminar		445 MSc
Professor Ken Ryan, ASOR, BGSU
"$E(s^2)$-Optimal Supersaturated Designs with
Good Minimax Properties"

Thursday, September 21, 2006
Math/Stat Department Office closed until 9:30 AM for Staff/College Meeting

1:30 PM		Analysis Seminar			459 or 400 MSc

2:30 PM		Foundational Math Committee Meeting	304 MSc

Friday, September 22, 2006
Family Weekend Begins

11:30 AM		Algebra Seminar			400 MSc

12:00 Noon	Calendar Information Due to Cyndi for next week's calendar

12:30 PM		Undergraduate Committee Meeting	400 MSc

12:30 PM		Graduate Student Seminar		459 MSc
"Planning Meeting"

3:30 PM		Refreshments served prior to the colloquium

3:45 PM		Colloquium			459 MSc
Professor Robert Bruner, Wayne State University
"From Groups to Cohomology to Varieties"
ABSTRACT:  If we apply a generalized cohomology theory to the
classifying space of a group, we obtain a ring whose structure
reveals something about the group. As a first approximation we
can consider the variety defined by this ring. The first result
in this direction was the work of Quillen in 1971, describing
the variety defined by the mod p cohomology in terms of the
elementary abelian subgroups. A number of such results for
other cohomology theories have now been proven. We shall review
these and discuss in detail the case of connective K-theory,
which provides a deformation from representation theory to
cohomology (at the level of varieties) and speculate on
generalizations of these results.

Saturday, September 23, 2006
Family Weekend Continues

Sunday, September 24, 2006
Last Day for Family Weekend

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of September 25 - October 1, 2006

Monday, September 25, 2006

3:30 PM		Calculus I Teacher's Forum	400 MSc

Tuesday, September 26, 2006

Wednesday, September 27, 2006

12:30 PM		Advisory Committee		458 MSc

12:30 PM		Frame Theory Seminar		459 MSc
Professor Wolf Iberkleid, BGSU Visiting Professor

3:30 PM		Calculus Seminar			459 MSc
Dr. Dan WIEGMANN, BGSU, Biology Dept.
"Trout Mating Strategies"

3:30 PM		Statistics Seminar		445 MSc
Dr. Jane CHANG, BGSU, ASOR Dept.
"Design and Analysis of Gene Expression Data
for Pharmacogenomics"

Thursday, September 28, 2006

1:30 PM		Analysis Seminar			459 MSc
Dr. Juan BÈS, BGSU
"Disjointness in Hypercyclicity, Part 2"

2:30 PM		Foundational Math Committee	304 MSc
AGENDA:  Classroom visitation policies

3:50 PM		Graduate Committee Meeting	400 MSc

Friday, September 29, 2006

11:30 AM		Algebra Seminar			400 MSc
Dr. Warren Wm. McGOVERN, BGSU
"What is Projectable?"

12:00 Noon	Calendar Information Due to Cyndi for next week's calendar

3:30 PM		Refreshments served prior to the colloquium

3:45 PM		Colloquium			459 MSc
Professor Hanfeng CHEN, BGSU
"Interval Mapping Methods for Genetic Trait Locus
in Finite Regression Mixture Models"
ABSTRACT:  This talk is based on joint work with Drs. Zhang and
Li. We consider interval mapping methods for genetic trait
locus (GTL) in a finite non-linear (including linear, of
course) regression mixture model. The general model assumes
most commonly-used kernel functions, such as exponential
family, logistic regression and generalized linear regression.
The populations derived from either the backcross or intercross
design are studied. Asymptotic properties of the interval
mapping methods are investigated in details. Unlike all
existing results in the literature in the finite mixture
models, the large sample results obtained do not require the
boundness condition on the parametric space. Therefore, the
large sample theory obtained possesses general applicability to
the interval mapping method of GTL in genetic research. The
limiting null distribution of the likelihood ratio test
statistics can be utilized easily to determine the threshold
values or $p$-values required in the interval mapping methods.
The limiting distribution is proved to be free of the parameter
values of null model and free of the choice of a kernel
function. Extension to the multiple marker interval GTL
detection is also discussed. Simulation study results show
favorable performance of the asymptotic procedure when sample
the genetics backgrounds of interval mapping.

Saturday, September 30, 2006

Sunday, October 1, 2006

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of October 2 - 10, 2006

Monday, October 2, 2006

8:00 PM		KME Meeting			459 MSc
Kick-off Meeting

Tuesday, October 3, 2006

3:30 PM		Tenured & Tenure-Track Faculty Meeting	459 MSc

Wednesday, October 4, 2006

12:30 PM		Advisory Committee		458 MSc

12:30 PM		Frame Theory Seminar		459 MSc
Professor Wolf Iberkleid, BGSU Visiting Professor

3:30 PM		Calculus Seminar			459 MSc

3:30 PM		Statistics Seminar		445 MSc
Deniz YENIGUN, BGSU
"A Test of Independence in Two-Way Contingency
Tables Based on Maximal Correlation"

ABSTRACT:  The maximal correlation has several attractive
properties for measuring dependence between two variables.
...snip...
maximal correlation which we use for constructing a test of
independence. We compare this test with other existing tests of

independence for several alternatives.

Thursday, October 5, 2006

1:30 PM		Analysis Seminar			459 MSc
Dr. Juan P. BÈS, BGSU
"Disjointness in Hypercyclicity, Part 3"

**12:00 Noon	Calendar Information Due to Cyndi for Oct. 11-15th calendar

2:30 PM		Foundational Math Committee	304 MSc

Friday, October 6, 2006

11:30 AM		Algebra Seminar			400 MSc
Dr. Warren Wm. McGOVERN, BGSU
"What Is Feebly Projectable?"

1:30 PM		Graduate Student Seminar		400 MSc
George TURCU, BGSU
"Ergodic Theorems"

Saturday, October 7, 2006

Sunday, October 8, 2006

Monday, October 9, 2006

Fall Break - No Classes - Offices Open

Tuesday, October 10, 2006

Fall Break - No Classes - Offices Open

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of October 9 - 15, 2006

Monday, October 9, 2006

Fall Break - No Classes - Offices Open

Tuesday, October 10, 2006

Fall Break - No Classes - Offices Open

Wednesday, October 11, 2006

2:30 PM		Frame Theory Seminar	459 MSc
Professor Wolf Iberkleid, BGSU Visiting Professor

3:30 PM		Statistics Seminar		445 MSc
Professor Truc NGUYEN, BGSU
"Some Properties of the Negative Multinomial Model"

3:30 PM		Calculus Seminar	(computer lab) 240 MSc
Mary Koshar, BGSU
"Using Maple in Calculus Classes"

Thursday, October 12, 2006
OCTM Conference, Toledo, OH

1:30 PM		Analysis Seminar		400 MSc
Dr. Juan P. BÈS, BGSU
"Disjointness in Hypercyclicity, Part 4"

2:30 PM		Foundational Math Committee	447 MSc

3:50 PM		Graduate Committee Meeting	400 MSc

Friday, October 13, 2006
OCTM Conference, Toledo, OH

11:30 AM		Algebra Seminar		400 MSc
Dr. Warren Wm. McGOVERN, BGSU
"TBA"

12:00 Noon	Calendar Information Due to Cyndi for next week's calendar

1:30 PM		Graduate Student Seminar	400 MSc
Kevin DREES
"Crypography"

Saturday, October 14, 2006
Homecoming 2006

OCTM Conference, Toledo, OH

SIAM Great Lakes Section Symposium
Complexity and Business Analytics: Theory and Applications
Wayne State University, Detroit, MI

Sunday, October 15, 2006
Last Day of Midterm Reporting

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of October 16 - 22, 2006

Monday, October 16, 2006

3:30 PM		Calculus II Teacher's Forum	400 MSc

Wednesday, October 18, 2006

12:30 PM	Advisory Committee		458 MSc

2:30 PM		Frame Theory Seminar		459 MSc
Professor Wolf Iberkleid, BGSU Visiting Professor

3:30 PM		Refreshments served prior to the colloquium

3:45 PM		Colloquium			459 MSc
Professor Boyan Dimitrov, Kettering University
"Lifetime Distributions and Equivalent Ages with
Possible Applications in Insurance, Risk, and More"
ABSTRACT:  In this lecture we define age and comparable ages for
individuals within one population or for objects from two (or more)
different populations by making use of their lifetime distributions.
The main purposes of this talk are not the proposed definitions, but the
new look at the quantiles, and its relationships with other important
probability characteristics. These definitions are all for equivalent
ages.  Respectively, there are various areas of use. All the other
statements, as Corollaries, Theorems, and even the Examples are like
consequences of the Definitions. For instance, as a consequence, we
propose several ways for the evaluation of the true age of one individual
against the background of his population. Also, a general approach to the
time scaling in age evaluation in accelerated testing is offered, based
on the accumulated total load. Then we generalize this definition to two-
dimensional and multi-dimensional distributions that also may represent
life times. Further we briefly sketch the areas where our method of
equivalent ages and comparisons can be applied.

Thursday, October 19, 2006

1:30 PM		Analysis Seminar		459 MSc
Dr. Juan P. BES, BGSU
Disjointness in Hypercyclicity, Part 5

2:30 PM		Foundational Math Committee	447 MSc

3:50 PM		Graduate Committee Meeting	400 MSc

Friday, October 20, 2006
Last Day to Withdraw from Classes

11:30 AM	Algebra Seminar			400 MSc
TBA

12:00 Noon	Calendar Information Due to Cyndi for next week's calendar

1:30 PM		Graduate Student Seminar	400 MSc
Kevin DREES
Cryptography, Part II

Saturday, October 21, 2006
Preview Open House

AMS Fall Central Section Meeting
University of Cincinnati

Sunday, October 22, 2006
AMS Fall Central Section Meeting
University of Cincinnati

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of October 23 - 29, 2006

Monday, October 23, 2006
Spring 2007 Registration Begins

3:30 PM		Calculus II Teacher's Forum	400 MSc

Tuesday, October 24, 2006

3:30 PM		Tenured/Tenure-Track Faculty Meeting		459 MSc

Wednesday, October 25, 2006

12:30 PM	Advisory Committee		458 MSc

2:30 PM		Frame Theory Seminar		459 MSc
Professor Wolf Iberkleid, BGSU Visiting
Professor

3:30 PM		Calculus Seminar		459 MSc

3:30 PM		Statistics Seminar		445 MSc
Dr. Maria RIZZO, BGSU
ìHierarchical cluster analysis:
an extension of Ward's minimum
variance methodî

Thursday, October 26, 2006

1:30 PM		Analysis Seminar		459 MSc
Dr. Juan P. BES, BGSU
ìDisjointness in Hypercyclicity, Part 6î

2:30 PM		Foundational Math Committee	447 MSc

Friday, October 27, 2006
MAA Ohio Section Meeting
Muskingum College, New Concord, OH

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

2:30 PM		Graduate Student Seminar	400 MSc
Kevin DREES
"Cryptography, Part III"

Saturday, October 28, 2006
MAA Ohio Section Meeting
Muskingum College, New Concord, OH

Sunday, October 29, 2006

Daylight Savings Time Ends
**Don't forget to turn your clocks back one hour**

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of October 30 - November 4, 2006

REMEMBER WE FALL BACK ONE HOUR SUNDAY MORNING, OCTOBER 29, 2006

Monday, October 30, 2006

3:30 PM		Calculus I Teacher's Forum	400 MSc

Tuesday, October 31, 2006

3:30 PM		Department Meeting		459 MSc

Wednesday, November 1, 2006

11:30 AM	      UGrad Stats Courses/Programs Discussion Group  400 MSc

12:30 PM		Advisory Committee		458 MSc

2:30 PM		Frame Theory Seminar		459 MSc
Professor Wolf IBERKLEID, BGSU Visiting Professor

3:30 PM		Calculus Seminar			459 MSc
Professor Dan WIEGMANN, BGSU, Dept of Biology
"Mating Models"

3:30 PM		Statistics Seminar		445 MSc
Fanglong DONG, BGSU
"Monte Carlo Experiment"
ABSTRACT:    I will talk about some basic simulation algorithm, including
Inverse CDF (Cummulative Distribution Function) method, Accept/Reject
Algorithm and Squeeze Accept/Reject Algorithm. Also I will give two
examples to show how to simulate using the Inverse CDF and Accept/Reject
Algorithm.  The Software that I will use is  R.

4:00 PM		AMATYC Annual Conference Begins (Nov. 1-5)
Duke Energy Center, Cincinnati, OH
http://www.amatyc.org/Events/conferences/2006Cincinnati/index.html

Thursday, November 2, 2006

AMATYC Annual Conference Continues in Cincinnati, OH

1:30 PM		Analysis Seminar			459 MSc
Professor Karl GROSSE-ERDMANN, Indiana University
"Frequently Hypercyclic Operators"
ABSTRACT:  F. Bayart and S. Grivaux have recently introduced a new concept
in hypercyclicity, that of frequently hypercyclic operators.  Recall that a vector
$x$ in a Banach (or Fr\'echet) space $X$ is called hypercyclic for an operator
$T$ on $X$ if its orbit $\{x, Tx, T^2 x, \ldots \}$ meets every non-empty
open subset $U$ of $X$.  Now, Bayart and Grivaux call $x$ frequently
hypercyclic for $T$ if its orbit meets every non-empty open subset $U$ of
$X$ often' in the sense that the set $\{ n \in \bold N : T^n x \in U \}$ has
positive lower density.  The operator $T$ is then also called frequently
hypercyclic.
In the talk we discuss this new notion from a linear-topological
point of view.  We shall present a sufficient condition for an operator to be
frequently hypercyclic.  As an application, surprisingly many classical
operators turn out to be frequently hypercyclic.  We also study the class
of frequently hypercyclic vectors.  This investigation is complicated by the
fact that, unlike in hypercyclicity, the Baire category theorem is no longer
available as a tool.

2:30 PM		Foundational Math Committee	447 MSc

Friday, November 3, 2006

AMATYC Annual Conference Continues in Cincinnati, OH

11:30 AM		Algebra Seminar			400 MSc
Dr. Elmas IRMAK, BGSU
"TBA"

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

12:30 PM		Undergraduate Committee Meeting	459 MSc

2:30 PM		Graduate Student Seminar		400 MSc
Irina SECELEANU
"Hardy and Bergman Spaces"

3:30 PM		Refreshments served prior to the colloquium

3:45 PM		Colloquium			459 MSc
Professor Karl GROSSE-ERDMANN, Indiana University
"The Dynamics of Linear Operators"
ABSTRACT:  We study the dynamical behaviour of linear operators on Banach
spaces (or, more generally, on Fr\'echet spaces).  The basic notion is that of
a hypercyclic operator, that is, an operator with a dense orbit.  By their very
nature, these operators have usually been studied usin linear-topological
methods.  Thus it came as quite a surprise when, a decade ago, E. Flytzanis
approached them from an ergodic theoretic point of view.  His investigation
was recently taken up, and greatly expanded, by F. Bayart and S. Grivaux.
The Birkhoff ergodic theorem led these authors to the introduction of an
exciting new notion, that of a frequently hypercyclic operator.
In the talk we shall outline these developments.  We shall also
discuss some of the open problems posed by Bayart and Grivaux.
NAME="C">

Saturday, November 4, 2006

AMATYC Annual Conference Continues in Cincinnati, OH

Sunday, November 5, 2006

AMATYC Annual Conference Continues in Cincinnati, OH

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of November 6 - 12, 2006

Monday, November 6, 2006

3:30 PM		Calculus II Teacher's Forum	400 MSc
Professor Steven M. SEUBERT, BGSU
"Writing Document and UMAP and COMAP Modules"

Tuesday, November 7, 2006

Wednesday, November 8, 2006

11:30 AM		Statistics Group Meeting		400 MSc

2:30 PM		Frame Theory Seminar		459 MSc
Professor Wolf Iberkleid, BGSU Visiting Professor

3:30 PM		Calculus Seminar			459 MSc
Dr. Craig L. ZIRBEL, BGSU
"Teaching trigonometric functions in calculus"
ABSTRACT:  I will demonstrate how I introduce and teach trigonometric functions
in calculus using physical demonstrations of circular motion, simple harmonic motion
Fourier series, and sound.

7:00 PM		KME Presentation			459 MSc
Dr. John McVEIGH, National Security Agency
"A Mathematician's Life at the NSA"
TOPIC:  Every wonder what life would be like as a code breaker?  Ever consider just
how integral the role of mathematics is in modern computer exchange protocols?
Come and listen to Dr. John McVey, a BGSU alumnus, present the basics of RSA
encryption and the Diffie-Hellman key exchange, in particular addressing the
underlying mathematics and what issues are involved with maintaining appropriate
levels of security.  Along with some interesting applications of mathematics, get a
feel for what it is like to be one of the people "behind the scenes" at the National
Security Agency.

7:30 PM		Actuarial Science Society Meeting	445 MSc
Presentation by Nationwide Insurance Company
(Intern Interviews will be held on Thursday)

Thursday, November 9, 2006

**12:00 Noon	Calendar Information Due to Cyndi**
for next week's calendar

1:30 PM		Analysis Seminar			459 MSc
Irina SECELEANU, BGSU
"Hypercyclic Subspaces, Part I:
Existence of a Hilbert space operator with an
invariant dense linear subspace of hypercyclic vectors"

2:30 PM		Foundational Math Committee	447 MSc

3:30 PM	COLLOQUIUM				459  MSc
Dr. John K. McVEY, NSA
"Recent Advances on Character Degree Graphs"
ABSTRACT:  Given a finite group G, there is an associated finite set of natural numbers cd(G) known as the character degrees of G, which constitute the dimensions of the irreducible representations. One area of study in character theory that of connecting the arithmetic structure of cd(G) with the group theoretic structure of G. Two tools for studying these connections are the character degree graphs: The first, called the common-divisor graph, has as verticies the set cd(G) and two (distinct) verticies a and b are adjacent if gcd(a,b) > 1. The other, the prime graph, has as verticies the set of all primes which divide members of cd(G), and two (distinct) primes p and q are adjacent if pq divides some degree in cd(G). In this talk, I present the basic tools used in studying these graphs, the present state of the ongoing research, as well as some of my contributions to the field of study.
NAME="C">

Friday, November 10, 2006

VETERAN'S DAY - NO CLASSES - OFFICES CLOSED

Saturday, November 11, 2006

Sunday, November 12, 2006

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of November 13 - 19, 2006

Monday, November 13, 2006

3:30 PM		Calculus Teacher's Forum		400 MSc

Tuesday, November 14, 2006

Wednesday, November 15, 2006

Discussion Group			400 MSc

2:30 PM		Frame Theory Seminar		459 MSc
Professor Wolf Iberkleid, BGSU Visiting Professor

3:30 PM		Statistics Seminar		445 MSc
Hope BARBERA, BGSU
"Rate of Convergence to Equilibrium for a Particle
in a Random Velocity Field"

Thursday, November 16, 2006

1:30 PM		Analysis Seminar			400 MSc
Irina SECELEANU, BGSU
"Hypercyclic Subspaces, Part II:
Existence of a Hilbert space operator with an
invariant dense linear subspace of hypercyclic vectors"

2:30 PM		Foundational Math Committee	447 MSc

Friday, November 17, 2006

11:30 AM		Algebra Seminar			400 MSc
Dr. Rieuwert BLOK, BGSU
"TBA"

12:00 Noon	Calendar Information Due to Cyndi
for the next **2** week's calendars

12:30 PM		Undergraduate Committee Meeting	400 MSc

2:30 PM		Graduate Student Seminar		400 MSc

3:30 PM		Refreshments served prior to the colloquium  459 MSc

3:45 PM		Colloquium			459 MSc
"Do we gain mathematics knowledge with evolving
technological tools?"
Abstract: Speaker will explore three examples in this talk. One is an
optimization problem of finding the shortest distance between two
non-intersecting curves in 2D or surfaces in 3D. The second is the
converse of Mean-ValueTheorem and the third is the limit problem
that is mentioned in a James Stewart Calculus text book. Speaker
generalizes the results to 3D.
It will be shown that dynamic geometry software packages in
2D and 3D provide us invaluable insight when making conjectures; the
computer algebra system such as Maple provides further symbolic and
algebraic analysis. From this presentation, audience will appreciate that
new technological tools today make learning, teaching and research in
mathematics fun, accessible, challenging and also theoretical. It is
fair to say that the results mentioned in this talk would not have been
realized without current technological tools.
NAME="C">

Saturday, November 18, 2006

Sunday, November 19, 2006

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of November 20 - 26, 2006

Monday, November 20, 2006

Tuesday, November 21, 2006

Wednesday, November 22, 2006

THANKSGIVING BREAK BEGINS - NO CLASSES - OFFICES OPEN

Thursday, November 23, 2006

HAPPY THANKSGIVING - THANKSGIVING BREAK CONTINUES
NO CLASSES - OFFICES CLOSED

Friday, November 24, 2006

THANKSGIVING BREAK CONTINUES - NO CLASSES - OFFICES CLOSED

Saturday, November 25, 2006

Sunday, November 26, 2006

*******************************************************

Department of Mathematics & Statistics Calendar
Week of November 27 - December 3, 2006

Monday, November 27, 2006

Tuesday, November 28, 2006

Wednesday, November 29, 2006

Discussion Group			400 MSc

2:30 PM		Frame Theory Seminar		459 MSc
Professor Wolf Iberkleid, BGSU Visiting Professor

3:30 PM		Calculus Seminar			459 MSc
Semester Wrap-Up

3:30 PM		Statistics Seminar		445 MSc
Dr. Wei NING, BGSU
"Fitting Mixture Distributions Using Generalized
Lambda Distributions (GLD’s):  Examples,
Comparisons with Normal Mixtures, and
Computational Considerations"

Thursday, November 30, 2006

1:30 PM		Analysis Seminar			459 MSc
George TURCU, BGSU
"Hypercyclic Operators Which Do Not Satisfy the
Hypercyclicity Criterion"

2:30 PM		Foundational Math Committee	447 MSc

Friday, December 1, 2006

11:30 AM		Algebra Seminar			400 MSc
Greg OMAN, Ohio State University
"TBA"

**12:00 Noon	Calendar Information Due to Cyndi**
for the next month's worth of calendar info
**Dec. 4th (2006) - January 8th (2007)**

12:30 PM		Undergraduate Committee Meeting	400 MSc

2:30 PM		Graduate Student Seminar		400 MSc

3:30 PM		Refreshments served prior to the colloquium--Coffee Lounge

3:45 PM		Colloquium			459 MSc
"Stock Price Covariance Estimation Incorporating
ABSTRACT:  The correlation of the changes in stock prices over time is
a fundamentally important ingredient in market analysis.
Most conventional estimators for the correlation are based on
historical records of end-of-day prices (which are publicly and
widely available). The include the usual sample estimator, and
variation `weighted'' versions thereof.
In addition to end-of-day price data, beginning-of-day and
intraday extremal price data are also widely available, e.g.,
one may readily obtain historical records of the daily
open, high, low, and closing prices for essentially any
publicly traded stock. Our goal is to develop an estimator
which incorporates this additional data, on the belief that
such an estimator could be significantly more efficient than
estimators based only on close-of-day prices.
Toward this end, we derive the joint probability density function
(PDF) for the normalized pairs of daily high, low, and closing prices
for a pair of stocks (six variables in all), based on modeling the
pair of prices as a vector-valued geometric Brownian motion with
drift and absorbing boundary conditions. This PDF may then be
used in the context of maximum likelihood estimation.
The PDF thus derived is given in terms of the solution of an
anisotropic diffusion equation posed on rectangular domain.
A significant portion of the effort, then, lies in understanding
and obtaining solutions to this diffusion equation.
Thus this talk lies at the intersection of mathematical finance,
stochastic differential equations, and partial differential equations.
Numerical results will be presented.
NAME="C">

Saturday, December 2, 2006

Preview Day OPEN  HOUSE

Sunday, December 3, 2006

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of December 4 - 10, 2006

Monday, December 4, 2006

3:30 PM		Calculus II Teacher's Forum	400 MSc

Tuesday, December 5, 2006

Wednesday, December 6, 2006

Discussion Group			400 MSc

2:30 PM		Frame Theory Seminar		459 MSc
Professor Wolf Iberkleid, BGSU Visiting Professor

Thursday, December 7, 2006

1:30 PM		Analysis Seminar			459 MSc
George TURCU, BGSU
"Hypercyclic Operators Which Do Not Satisfy the
Hypercyclicity Criterion, Part 2"

2:30 PM		Foundational Math Committee	447 MSc

3:45 PM		Algebra Seminar			459 MSc
"Primality Tests Using Cubic and Biquadratic Reciprocity"
ABSTRACT:  In this talk we will present primality test for Gaussian
Mersenne Norms and Eisenstein Mersenne norms (a generalization of
Mersenne numbers), using the biquadratic and cubic reciprocity law
respectively, also using the cubic reciprocity law we will give a
primality test for numbers of the form $A^2.3^n+1$, $n$ odd.

Friday, December 8, 2006

Last Day of Fall Semester 2006 Classes

11:30 AM		Algebra Seminar			400 MSc
Professor Kay Magaard, Wayne State University
"Constructive Recognition of Simple Groups"

**12:00 Noon	Calendar Information Due to Cyndi
for the next 4 week's work of calendar postings
December 11, 2006 - January 8, 2007**

2:30 - 4:30 PM	Math/Stat End-of-the-Semester Celebration
Informal drop-in/drop-out celebration in the coffee lounge
with light refreshment.  Everyone please feel free to bring
something to share with the rest of the department

Saturday, December 9, 2006

Sunday, December 10, 2006
NAME="C">

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Weeks of December 11, 2006 - January 8, 2007

Monday, December 11 - Friday, December 15, 2006

EXAM WEEK

Friday, December 15, 2006

7:00 PM		Graduate Commencement	Anderson Arena

Saturday, December 16, 2006

10:00 AM		Undergraduate Commencement	Anderson Arena

Sunday, December 17, 2006 - Sunday, January 7, 2007

Winter Break - HAPPY HOLIDAYS!

Monday, December 25, 2006 - Tuesday, December 26, 2006

University Closed

Wednesday, December 27, 2006 - Friday, December 29, 2006

Department of Mathematics and Statistics Office Closed (will reopen Tuesday, January 2, 2007)

Monday, January 1, 2007

University Closed

Tuesday, January 2, 2007

Department of Mathematics and Statistics Office Reopens

Friday, January 5, 2007 - Monday, January 8, 2007

Joint Mathematical Meetings, New Orleans, Louisiana
for details, see:  http://www.ams.org/amsmtgs/2098_intro.html

Monday, January 8, 2007

Spring Semester 2007 Begins

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of January 8 - 14, 2007

Monday, January 8, 2007

3:30 PM		Calculus I Teacher's Forum	400 MSc
Prof. Steven M. SEUBERT, BGSU

Tuesday, January 9, 2007

Wednesday, January 10, 2007

Thursday, January 11, 2007

Friday, January 12, 2007

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

3:30 PM		Refreshments served prior to the colloquium

3:45 PM		Colloquium			459 MSc
Dr. Patricia Pepple Williamson
Assoc. Prof., Virginia Commonwealth University and
Visiting Prof., Case Western Reserve University
"The Creation of a New Probability Distribution or Is It?
ABSTRACT:  A new discrete random variable is defined and explored.
This random variable is defined to be the number of N distinct, equally likely
elements that are selected by K individuals where each individual
chooses exactly one of the elements independently of the other
individuals.  The probability distribution of this random variable is
given utilizing various counting rules, properties of probability, and
observing trends in cases where all possible outcomes can be listed.
It turns out that the distribution can be written to involve the
Stirling numbers of the second kind.  Several examples are given as
applications of the usefulness of this random variable, including a
variant of the birthday problem.  Some discussion is given as to
whether or not this is a random variable that has already been
examined.

Saturday, January 13, 2007

Sunday, January 14, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of January 15 - 21, 2007

Monday, January 15, 2007

NO CLASSES -- OFFICES CLOSED -- Martin Luther King, Jr. Day

Tuesday, January 16, 2007

10:30 AM		Non-Tenure Track Faculty Meeting	459MSc

Wednesday, January 17, 2007

10:30 AM		Statistics Seminar		459 MSc
Professor M. S. SRIVASTAVA, Visiting Lukacs Professor
"Multivariate Theory for High Dimensional Data with
Fewer Observations"
TOPIC:  One-sample and two-sample hypothesis testing

1:30 PM		Graduate Committee Meeting	400 MSc

3:30 PM		Calculus Seminar			459 MSc
Ray HEITGER
"A Geometric Look at P-Series"

Thursday, January 18, 2007

3:30 PM		Education Seminar		459 MSc
Michelle HECKMAN
"Effectively Working with the Math Stat Tutoring Center"

Friday, January 19, 2007

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

Saturday, January 20, 2007

Sunday, January 21, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of January 22 - 28, 2007

Monday, January 22, 2007

12:30 PM		Statistics Education Seminar	459 MSc
Professor James H. ALBERT
"Statistics Capabilities of the TI Graphing Calculators"

3:30 PM		Calculus I Teacher's Forum	400 MSc

Tuesday, January 23, 2007

9:00 AM		Algebra Seminar			400 MSc
"Geometric Recognition of Locally SU_6(\C} Graphs"

11:30 AM		Advisory Committee Meeting	458 MSc

3:30 PM		Department Meeting		459 MSc
Chair Candidates Forum

Wednesday, January 24, 2007

10:30 AM		Statistics Seminar		459 MSc
Professor M. S. SRIVASTAVA, Visiting Lukacs Professor
"Multivariate Theory for High Dimensional Data with
Fewer Observations"
TOPIC:  Multiple hypotheses testing; false discovery rate; etc.

1:30 PM		Graduate Committee Meeting	400 MSc

2:30 PM		Frame Theory Seminar		400 MSc
Dr. Wolf IBERKLEID

Thursday, January 25, 2007

10:45 - 11:20 AM	Foundational Mathematics Committee Meeting   400  MSc

3:30 PM		Education Seminar		459 MSc
Cheryl GRANT
"Writing Lesson Plans and Lecturing"

Friday, January 26, 2007

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

3:30 PM		Refreshments served prior to the colloquium

3:45 PM		Colloquium			459 MSc
Dr. J. Lafont, The Ohio State University
"Simplicial Volume of Locally Symmetric Spaces"
ABSTRACT:  Simplicial volume of a manifold is a measure of how efficiently
it can be "triangulated over the reals". I will discuss the proof of the
following conjecture of Gromov: the simplicial volume of any locally
symmetric space of non-compact type is positive. The prerequisites will
be kept to a minimum, and I will attempt to convey the key ideas of the
proof while avoiding technical details. This was joint work with Ben
Schmidt (University of Chicago).

Saturday, January 27, 2007

Sunday, January 28, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of January 29 - February 4, 2007

Monday, January 29, 2007

12:30 PM		Statistics Education Seminar	459 MSc
Dr. James ALBERT
"Activity Teaching in MATH 115"

Tuesday, January 30, 2007

3:30 PM		TENURED Faculty Meeting		459 MSc

Wednesday, January 31, 2007

10:30 AM		Statistics Seminar		459 MSc
Professor M. S. SRIVASTAVA, Visiting Lukacs Professor
"Multivariate Theory for High Dimensional Data with
Fewer Observations"
TOPIC:  Multivariate Analysis of Variance (MANOVA)

1:00 PM - 4:00 PM	Major Mania			101 OLSC

2:30 PM		Frame Theory Seminar		400 MSc
Professor Wolf IBERKLEID

3:30 PM		Education Seminar		459 MSc
Gary NONNEMACHER
"Writing Exams and Quizzes"

Thursday, February 1, 2007

10:45 - 11:20 AM	Foundational Mathematics Committee   400 MSc

3:30 PM		Calculus Seminar			459 MSc
Dr. David MEEL
"Applets for Calculus"

Friday, February 2, 2007

11:30 AM		Analysis Seminar			400 MSc
Professor Kit C. CHAN
"Common hypercyclic vectors for a path of
hypercyclic operators"

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

1:30 PM - 3:20 PM	Algebra Seminar			400 MSc
TBA

Saturday, February 3, 2007

Sunday, February 4, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of February 5 - 11, 2007

Monday, February 5, 2007

12:30 PM		Statistics Education Seminar	459 MSc
Professor James H. ALBERT
"The GAISE Guidelines for Teaching Statistics"

3:30 PM		Calculus I Teacher's Forum	400 MSc

Tuesday, February 6, 2007

Wednesday, February 7, 2007

10:30 AM		Statistics Seminar		459 MSc
Professor M. S. SRIVASTAVA, Visiting Lukacs Professor
"Multivariate Theory for High Dimensional Data with
Fewer Observations"
TOPIC:  False discovery rate and other procedures in
large-scale multiple hypothesis testing

2:30 PM		Frame Theory Seminar		400 MSc

Thursday, February 8, 2007

10:45 - 11:20 AM	Foundational Mathematics Committee   400 MSc

3:30 PM		Education Seminar		300 MSc
Duane BOLLENBACHER, Bluffton University
"Assigning Homework"

Friday, February 9, 2007

11:30 AM		Analysis Seminar			459 MSc
Professor Kit C. CHAN
"Common hypercyclic vectors for a path of
hypercyclic operators, Part II"

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

Saturday, February 10, 2007

Sunday, February 11, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of February 12 - 18, 2007

Monday, February 12, 2007

Summer Registration Begins

12:30 PM		Statistics Education Seminar	459 MSc
Professor James ALBERT
"Finding Real Data for MATH 115"

3:30 PM		Calculus I Teacher's Forum	400 MSc

Tuesday, February 13, 2007

Wednesday, February 14, 2007

10:30 AM		Statistics Seminar		459 MSc
Professor M. S. SRIVASTAVA, Visiting Lukacs Professor
"Multivariate Theory for High Dimensional Data with
Fewer Observations"
TOPIC:  False discovery rate and other procedures in
large-scale multiple hypothesis testing -- CONTINUED

2:30 PM		Frame Theory Seminar		400 MSc

3:30 PM		Education Seminar		224 MSc
Gary NONNEMACHER

3:30 PM		Refreshments served prior to candidate research talk   459 MSc

3:45 PM		ALGEBRA Candidate Research Talk	459 MSc

Thursday, February 15, 2007

10:45 - 11:20 AM	Foundational Mathematics Committee   400 MSc

3:30 PM		Calculus Seminar			459 MSc
Dr. David MEEL
"Using Applets"
ABSTRACT:  The real unsettled issue of using technology such as applets is how
to use them effectively in class.  We describe how applets can used in instruction
by illustrating with examples.  A volunteer will be conscripted.

Friday, February 16, 2007

11:30 AM		Analysis Seminar			459 MSc
Professor Kit C. CHAN
"Common hypercyclic vectors for a path of
hypercyclic operators, Part III"

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

1:30 PM - 3:20 PM	Algebra Seminar			400 MSc

3:30 PM		Refreshments served prior to candidate research talk   459 MSc

3:45 PM		ALGEBRA Candidate Research Talk	459 MSc

Saturday, February 17, 2007

Sunday, February 18, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of February 19 - 25, 2007

Monday, February 19, 2007

President's Day Open House

12:30 PM		Statistics Education Seminar	459 MSc
Gary NONNEMACHER

3:30 PM		Refreshments served prior to candidate research talk   459 MSc

3:45 PM		ALGEBRA Candidate Research Talk	459 MSc

Tuesday, February 20, 2007

Wednesday, February 21, 2007

10:30 AM		Statistics Seminar		459 MSc
Professor M. S. SRIVASTAVA, Visiting Lukacs Professor
"Multivariate Theory for High Dimensional Data with
Fewer Observations"
TOPIC:  False discovery rate and other procedures in
large-scale multiple hypothesis testing -- CONTINUED

2:30 PM		Frame Theory Seminar		400 MSc

3:30 PM		Education Seminar		224 MSc
Gary NONNEMACHER

3:30 PM		Refreshments served prior to candidate research talk   459 MSc

3:45 PM		ALGEBRA Candidate Research Talk	459 MSc

Thursday, February 22, 2007

10:45 - 11:20 AM	Foundational Mathematics Committee   400 MSc

1:00 PM		Personnel Committee Meeting	400 MSc

Friday, February 23, 2007

11:30 AM		Analysis Seminar			459 MSc
Professor Kit C. CHAN
"Common hypercyclic vectors for a path of
hypercyclic operators, Part IV"

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

1:30 PM - 3:20 PM	Algebra Seminar			400 MSc

3:30 PM		Refreshments served prior to the colloquium	459 MSc

3:45 PM		Colloquium			459 MSC
Dr. E. BAYRAKTAR, University of Michigan
"Quickest Detection for a Poisson Process with a Phase-type
Change-time Distribution"
ABSTRACT:  We consider a change detection problem in which the arrival rate of a
Poisson process changes suddenly at some unknown and unobservable disorder time.
It is assumed that the prior distribution of the disorder is known. The ob jective is
to determine the disorder time with an online detection rule (a stopping time) in a
way that balances the frequency of false alarm and detection delay in an optimal way.
So far in the study of this problem, the prior distribution of the disorder time is taken
to be exponential distribution for analytical tractability. Here, we will take the prior
distribution to be a phase-type distribution, which is the distribution of the absorption
time of a continuous time Markov chain with a discrete state space. We find the optimal
stopping rule for this general case and give a numerical method that outputs
epsilon-optimal strategies for any epsilon> 0. We illustrate our findings on several
examples.

Saturday, February 24, 2007

Sunday, February 25, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of February 26 - March 11, 2007

Monday, February 26, 2007

12:30 PM		Statistics Education Seminar	459 MSc

3:30 PM		Calculus I Teacher's Forum	400 MSc

3:30 PM		Refreshments served prior to Research Talk   459 MSc

3:45 PM		ALGEBRA Candidate Research Talk	459 MSc

Tuesday, February 27, 2007

Wednesday, February 28, 2007

10:30 AM		Statistics Seminar		459 MSc
Professor M. S. SRIVASTAVA, Visiting Lukacs Professor
"Multivariate Theory for High Dimensional Data with
Fewer Observations"

11:30 AM		Advisory Committee Meeting	458 MSc

2:30 PM		Frame Theory Seminar		400 MSc

3:30 PM		Education Seminar		459 MSc
Lisa FOOS
"Helping Students Deal With Math Anxiety"

8:00 PM		KME Event			459 MSc
Open Forum about Methods and Student Teaching

Thursday, March 1, 2007

10:45 - 11:20 AM	Foundational Mathematics Committee   400 MSc

***12:00 Noon	Calendar Information Due to Cyndi
for TWO WEEKS FROM NOW's calendar (3/12-18/07)***

3:30 PM		Calculus Seminar			459 MSc
Dr. David E. MEEL
"McGraw-Hill Connect 2 Calculus Conceptual Videos"
ABSTRACT:  For the past year, I have been involved with McGraw-Hill in the
development of conceptual videos for use in calculus courses. In particular,
there are twenty five essential calculus concepts discussed by this video set
designed to place the concepts into real-world settings.  In particular, the videos
cover topics from single and multivariable calculus.  The developers propose that
"these videos can be used in the classroom to motivate a topic prior to lecture,
or students can use them on their own in preparation for class, quizzes, and tests".
Our time will be spent viewing several of the videos and discussing their potential
use in the classroom and what potential impact they might have on student understanding.

Friday, March 2, 2007

Saturday, March 3, 2007

Sunday, March 4, 2007

Week of Monday, March 5 - Sunday, March 11, 2007

SPRING BREAK WEEK - Classes Resume March 12, 2007
No Classes, Departmental Office Open, No Scheduled Activities

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of March 12 - 18, 2007

Monday, March 12, 2007

12:30 PM		Statistics Education Seminar	459 MSc

3:30 PM		Calculus I Teacher's Forum	400 MSc

Tuesday, March 13, 2007

Wednesday, March 14, 2007

10:30 AM		Statistics Seminar		459 MSc
Professor M. S. SRIVASTAVA, Visiting Lukacs Professor
"Multivariate Theory for High Dimensional Data with
Fewer Observations"

2:30 PM		Frame Theory Seminar		400 MSc

3:30 PM		Education Seminar		300 MSc
Cheryl GRANT
"Teachable Moments: Getting Students to Think
Through a Problem"

Thursday, March 15, 2007

10:45 - 11:20 AM	Foundational Mathematics Committee   400 MSc

1:00 PM		Personnel Committee Meeting	400 MSc

Friday, March 16, 2007

AMS Spring Central Section Meeting, Miami University, Oxford, OH

11:30 AM		Analysis Seminar			459 MSc
Irina SECELEANU
"Hypercyclicity of the Operator Algebra for a
Separable Hilbert Space - Part I"

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

1:30 PM - 3:20 PM	Algebra Seminar			400 MSc
Dr. Warren McGovern
"Attempts at Non-Commutativity"

Saturday, March 17, 2007

AMS Spring Central Section Meeting, Miami University, Oxford, OH -- CONTINUED

Sunday, March 18, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of March 19 - 25, 2007

Monday, March 19, 2007

12:30 PM		Statistics Education Seminar	459 MSc

3:30 PM		Calculus I Teacher's Forum	400 MSc

Tuesday, March 20, 2007

Wednesday, March 21, 2007

NCTM Annual Meeting, Atlanta, GA

10:30 AM		Statistics Seminar		459 MSc
Professor M. S. SRIVASTAVA, Visiting Lukacs Professor
"Multivariate Theory for High Dimensional Data with
Fewer Observations"

11:30 AM		Advisory Committee Meeting	458 MSc

2:30 PM		Frame Theory Seminar		400 MSc

3:30 PM		Education Seminar		459 MSc
Ray HEITGER
"Writing In Math Class"

Thursday, March 22, 2007

NCTM Annual Meeting, Atlanta, GA -- CONTINUED

10:45 - 11:20 AM	Foundational Mathematics Committee   400 MSc

1:00 PM		Personnel Committee Meeting	400 MSc

3:30 PM		Calculus Seminar			459 MSc
Dr. David E. MEEL
"My Favorite Conceptual Questions"

Friday, March 23, 2007

NCTM Annual Meeting, Atlanta, GA -- CONTINUED

11:30 AM		Analysis Seminar			459 MSc
Irina SECELEANU
"Hypercyclicity of the Operator Algebra for a
Separable Hilbert Space - Part II"

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

Saturday, March 24, 2007

NCTM Annual Meeting, Atlanta, GA -- CONTINUED

Sunday, March 25, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of March 26 - April 1, 2007

Monday, March 26, 2007

12:30 PM		Statistics Education Seminar	459 MSc
Hope BARBERA
"MATH 115 On-Line?"

3:30 PM		Calculus I Teacher's Forum	400 MSc

Tuesday, March 27, 2007

3:30 PM		Tenured ONLY Faculty Meeting	459 MSc

Wednesday, March 28, 2007

10:30 AM		Statistics Seminar		459 MSc
Professor M. S. SRIVASTAVA, Visiting Lukacs Professor
"Multivariate Theory for High Dimensional Data with
Fewer Observations"

11:30 AM		Advisory Committee Meeting	458 MSc

1:30 PM		Graduate Committee Meeting	400 MSc

2:30 PM		Frame Theory Seminar		400 MSc

3:30 PM		Education Seminar		459 MSc
Ray HEITGER
"Using Technology Appropriately in the Classroom"

Thursday, March 29, 2007

10:45 - 11:20 AM	Foundational Mathematics Committee   400 MSc

3:30 PM		Calculus Seminar			459 MSc
Tim FUERST, Dept. of Economics
"How An Economist View Elasticity"

Friday, March 30, 2007

11:30 AM		Analysis Seminar			459 MSc
George TURCU

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

3:30 PM		Refreshments served prior to candidate talk   459 MSc

3:45 PM		Algebra Candidate Research Talk	459 MSc

Saturday, March 31, 2007

Sunday, April 1, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of April 2 - 8, 2007

Monday, April 2, 2007

12:30 PM		Statistics Education Seminar	459 MSc
Professor James ALBERT
"Using Projects in MATH 115"

Tuesday, April 3, 2007

Wednesday, April 4, 2007

10:30 AM		Statistics Seminar		459 MSc
Professor M. S. SRIVASTAVA, Visiting Lukacs Professor
"Multivariate Theory for High Dimensional Data with
Fewer Observations"

11:30 AM		Advisory Committee Meeting	458 MSc

2:30 PM		Frame Theory Seminar		400 MSc

Thursday, April 5, 2007

10:45 - 11:20 AM	Foundational Mathematics Committee   400 MSc

1:00 PM		Personnel Committee Meeting	400 MSc

Friday, April 6, 2007

11:30 AM		Analysis Seminar			459 MSc
George TURCU
"Part II"

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

1:30 PM - 3:20 PM	Algebra Seminar			400 MSc
Papiya BHATTACHARJEE

3:30 PM		Refreshments served prior to the colloquium

3:45 PM		Colloquium			459 MSc
Dr. M. BILODEAU, Université de Montréal
"A-dependence statistics for mutual and serial
independence of categorical variables"
ABSTRACT:  The main subject of the talk relates to the use of A-dependence
statistics to test for serial independence of a stationary sequence of a categorical
variable. A universal and consistent test Y^2 of serial independence is constructed
using A-dependence statistics. The test Y^2 can be partitioned into A-dependence
statistics which are asymptotically independent and distributed as chi-square.
Similar properties are obtained for the test Y^2 to be used with theoretical marginal
probabilities. A test of the Box-Pierce type is also proposed to detect large lagged
dependencies. The A-dependence statistics have a closed form. They can be
evaluated by the most common statistical softwares which provide Pearson¹s test
of independence for multi-way contingency tables.

Saturday, April 7, 2007

Sunday, April 8, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of April 9 - 15, 2007

Monday, April 9, 2007

3:30 PM		Calculus I Teacher's Forum	400 MSc

Tuesday, April 10, 2007

Wednesday, April 11, 2007

10:30 AM		Statistics Seminar		459 MSc
Professor M. S. SRIVASTAVA, Visiting Lukacs Professor
"Multivariate Theory for High Dimensional Data with
Fewer Observations"

11:30 AM		Advisory Committee Meeting	458 MSc

1:30 PM		Graduate Committee Meeting	400 MSc

2:30 PM		Frame Theory Seminar		400 MSc

3:30 PM		Education Seminar		459 MSc
Ray HEITGER
"Current High School Math Education/Where Are
Our Students Coming From?"

Thursday, April 12, 2007

10:45 - 11:20 AM	Foundational Mathematics Committee   400 MSc

1:00 PM		Personnel Committee Meeting	400 MSc

Friday, April 13, 2007

MAA Ohio Section Meeting, Shawnee State University, Portsmouth, OH

11:30 AM		Analysis Seminar			459 MSc
Ozgur MARTIN
"TBA"

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

12:30 PM		Statistics Committee Meeting	400 MSc

1:30 PM - 3:20 PM	Algebra Seminar			400 MSc
Dr. Wolf IBERKLEID and Papiya BHATTACHARJEE
"Two Stories on Frames"

Saturday, April 14, 2007

MAA Ohio Section Meeting, Shawnee State University, Portsmouth, OH -- CONTINUED

Sunday, April 15, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of April 16 - 22, 2007

**Please note that next week's calendar will be the last one sent out
until Fall Semester begins.  Please turn in any information that needs
to be shared for the end of Spring Semester, Summer Term, and
the first week of Fall Semester.**

Monday, April 16, 2007

12:30 PM		Statistics Education Seminar	459 MSc
Sandra ZIRKES
"Developing Conceptual Understanding"

Tuesday, April 17, 2007

6:30 PM		A&S 39th Honors and Awards Reception
Lenhart Grand Ballroom, BTSU

Wednesday, April 18, 2007

10:30 AM		Statistics Seminar		459 MSc
Professor M. S. SRIVASTAVA, Visiting Lukacs Professor
"Multivariate Theory for High Dimensional Data with
Fewer Observations"

11:30 AM		Advisory Committee Meeting	458 MSc

3:30 PM		Education Seminar		300 MSc
Michelle HECKMAN
"Helping Students Develop Organizational and Study
Skills: Getting Ready for the Finals"

Thursday, April 19, 2007

10:45 - 11:20 AM	Foundational Mathematics Committee   400 MSc

3:30 PM		Calculus Seminar			459 MSc
Dr. John HOAG, Chair, Dept. of Economics

Friday, April 20, 2007

11:30 AM		Analysis Seminar			459 MSc
Kevin RION

12:00 Noon	Calendar Information Due to Cyndi
to cover Last week of classes/Exam week
Summer/First Week of Fall Classes

1:30 PM		Algebra Seminar			400 MSc
Dr. Rieuwert BLOK

3:30 PM		Refreshments served prior to the colloquium

3:45 PM		Colloquium			459 MSc
Dr. Joan LEITZEL, The Ohio State University
"Strengthening K-12 Mathematics in Ohio: What is
the role of higher education?"

Saturday, April 21, 2007

Sunday, April 22, 2007

College of Education Awards Reception

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Weeks of April 23 - August 23, 2007

Monday, April 23, 2007

12:30 PM		Statistics Education Seminar	459 MSc
Professor Thomas HERN

Tuesday, April 24, 2007

Wednesday, April 25, 2007

10:30 AM		Statistics Seminar		459 MSc
Professor M. S. SRIVASTAVA, Visiting Lukacs Professor
"Multivariate Theory for High Dimensional Data with
Fewer Observations"

11:30 AM		Advisory Committee Meeting	458 MSc

Thursday, April 26, 2007

10:45 - 11:20 AM	Foundational Mathematics Committee   400 MSc

11:00 AM		Dissertation Defense		459 MSc
Mihaela MARCUSANU
"The Classification of L1-Embeddable Fullerenes"

3:30 PM		Calculus Seminar			459 MSc

Friday, April 27, 2007

5:30 PM		GSS & Shanklin Award Reception	101B OLSC

Saturday, April 28, 2007

Sunday, April 29, 2007

7:00P - 9:00P	KME Study Session		459 MSc

Monday, April 30 - Friday, May 4, 2007

Final Exam Week

Monday, April 30, 2007

7:00P - 9:00P	KME Study Session		459 MSc

Friday, May 4, 2007

Saturday, May 5, 2007

Anderson Arena

Sunday, May 6 - Sunday, May 13, 2007

Break Before Summer 2007 terms begin

Monday, May 7, 2007

Grade Sheets due in Dept Office before 9AM
(DO NOT turn them in yourself to R&R)

Monday, May 14 - Friday, June 22, 2007

1st 6-week Summer Term

Friday, May 25, 2007

10:00 AM		Dissertation Defense		459 MSc
"Convergence Results for Sums of Dependent
Trigonometric Random Variables"

1:00 PM		Dissertation Defense		459 MSc
Deniz YENIGUN
"A Test of Independence in Contingency Tables
Based on Maximal Correlation"

Monday, June 11 - Friday, August 3, 2007

8-week Summer Term

Tuesday, June 19, 2007

1:00P - 5:00P	Comprehensive Examinations	459 MSc

Wednesday, June 20 - Friday, June 22, 2007

Ohio Section MAA Summer Short Course, Baldwin-Wallace College, Berea, Ohio

Thursday, June 21, 2007

1:00P - 5:00P	Comprehensive Examinations	459 MSc

Monday, June 25 - Friday, August 3, 2007

2nd 6-week Summer Term; also Graduate Summer Fellowship Program begins

Monday, June 25, 2007

Grade Sheets from 1st 6-week Summer Session due in Dept office before 9AM
(DO NOT turn them in yourself to R&R)

Sunday, July 29 - Thursday, August 2, 2007

Joint Statistical Meetings, Salt Lake City, Utah

Friday, August 3 - Monday, August 6, 2007

MAA MathFest, San Jose, California

Monday, August 6, 2007

Grade Sheets from 8-week Summer & 2nd 6-week Summer Terms due in
Dept office before 9AM  (DO NOT turn them in yourself to R&R)

Sunday, August 5 - Wednesday, August 8, 2007

Sunday, August 12 - Friday, August 17, 2007

Thursday, August 16 - Friday, August 17, 2007

Course Coordinators May Be Holding Initial Meetings -- watch for email notification of day/time/room

Thursday, August 16, 2007

2:00P - 3:30P	MATH 115 Instructor/TA Orientation Meeting   459 MSc

Friday, August 17, 2007

Opening Day Faculty Meetings

2:00P - 3:30 P	MATH 115 Instructor/TA Orientation Meeting   459 MSc

Monday, August 20, 2007

FALL Semester 2007 Begins

Tuesday, August 21, 2007

1:00P - 5:00P	Preliminary Qualifying Examinations  459 MSc

Thursday, August 23, 2007

1:00P - 5:00P	Preliminary Qualifying Examinations   459 MSc

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of August 20 - 26, 2007

Monday, August 20, 2007

Welcome Back -- Fall Semester 2007 Begins

Tuesday, August 21, 2007

11:00 AM		Graduate Committee Meeting	400 MSc

1:00P - 5:00P	Preliminary Examinations		459 MSc

Wednesday, August 22, 2007

10:30 AM		Statistics Seminar		459 MSc

12:30 PM		Statistics Education Seminar	459 MSc

Thursday, August 23, 2007

10:30 AM		MATH 122 Instructors Meeting	400 MSc

10:45 AM		MATH 112 Instructors Meeting	459 MSc

1:00P - 5:00P	Preliminary Examinations		459 MSc

Friday, August 24, 2007

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

3:30 PM		Refreshments served prior to the colloquium

3:45 PM		COLLOQUIUM			459 MSc
Dr. Shuxia SUN, Wright State University
"Bootstrapping the Expected Shortfall"
ABSTRACT:  The expected shortfall is a popular risk measure in financial risk management.  It is defined as the expected loss given that the loss is greater than a given high quantile.  We derive the asymptotic properties of the blocking bootstrap estimators for the expected shortfall of a stationary process under strongly mixing conditions.  Results from empirical examples and a small simulation study will also be presented to evaluate the performance of the proposed block bootstrap estimators.

Saturday, August 25, 2007

Sunday, August 26, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of August 27 ‹ September 3, 2007

Monday, August 27, 2007

3:30 PM		Algebra Seminar			459 MSc
Dr. Rieuwert BLOK, BGSU
"The Grassmann and Spin Embedding of DSp(2n,F)"

4:30 PM		MATH 295H Presentation		400 MSc
Professor Steven SEUBERT, BGSU
"Newton's Model of the Atom, the Mathematical Theory
of Knots, and the Development of Insulin"
ABSTRACT:  This talk with be a brief description of how the mathematical theory
of knots has contributed to the study of DNA and such advances as the
development of insulin and color enhancement of wave petunias.

Tuesday, August 28, 2007

1:00 PM		Statistics Education Seminar	459 MSc
Professor James ALBERT, BGSU
"Using the Calculator in Teaching Statistics"

3:45 PM		Tenured/Tenure-Track Faculty Meeting	459 MSc
AGENDA:	4 Years of PhD Funding

Wednesday, August 29, 2007

10:30 AM		Statistics Seminar		459 MSc
Professor James ALBERT, BGSU
"Learning About a Proportion Without Knowing the
Count and Sample Size"

1:30 PM		Education Seminar		459 MSc
"Maintaining Your Classroom:  What to do if..."

3:30 PM		Calculus Seminar			459 MSc
Organizational Meeting

Thursday, August 30, 2007

10:30 AM		MATH 122 Instructors Meeting	400 MSc

10:45 AM		MATH 112 Instructors Meeting	459 MSc

11:00 AM		Graduate Committee Meeting	445 MSc

11:30 AM		Graduate Committee Meeting	400 MSc

2:30 PM		Undergraduate Committee Meeting	400 MSc

4:30 PM	Lattice Ordered Groups Seminar	459 MSc

Friday, August 31, 2007

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

Saturday, September 1, 2007

Sunday, September 2, 2007

Monday, September 3, 2007

NO CLASSES ‹ OFFICES CLOSED ‹ LABOR DAY HOLIDAY

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of September 3 ‹ 9, 2007

Monday, September 3, 2007

NO CLASSES ‹ OFFICE CLOSED ‹ LABOR DAY HOLIDAY

Tuesday, September 4, 2007

11:00 AM		Graduate Committee Meeting	400 MSc

1:00 PM		Statistics Education Seminar	459 MSc
Professor James ALBERT, BGSU
"Finding Good Data for MATH 115"

3:30 PM		Tenured/Tenure Track Faculty Meeting	459 MSc
TOPIC:	4 Years of PhD Funding

Wednesday, September 5, 2007

10:30 AM		Statistics Seminar		459 MSc
Dr. John CHEN, BGSU
"Matrix Variate Skew Normal Models"

1:30 PM		Education Seminar		**208 MSLY**
"Working with the Math Lab"

3:30 PM		Calculus Seminar			459 MSc
"Dealing with Students Who Think They Know Calculus"

Thursday, September 6, 2007

10:30 AM		MATH 122 Instructors Meeting	400 MSc

10:45 AM		MATH 112 Instructors Meeting	459 MSc

2:30 PM		Undergraduate Committee Meeting	400 MSc

3:30 PM		Foundational Math Committee	400 MSc

4:30 PM		Lattice Ordered Groups Seminar	459 MSc

Friday, September 7, 2007

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

12:00 Noon	Graduate Student Seminar		400 MSc
Papiya BHATTACHARJEE
"Introduction to Frames"

3:30 PM		Refreshments served prior to the colloquium     459 MSc

3:45 PM		Colloquium			459 MSc
Dr. Tonghui (Tony) WANG, New Mexico State University
"Versions of Cochran's Theorem under Multivariate Settings'
ABSTRACT:  It is well known that Cochran's theorem related to the distribution of quadratic forms plays an important role in regression, analysis of variance, covariance analysis, linear models, MINQUE theory, etc. Cochran's theorem in its univariate and multivariate versions provides connections between statistics and matrix algebra. In this talk, we will discuss versions of Cochran's theorem for multivariate normal model, for elliptically contoured models, and for skew normal models. Also several research projects in this topic will be addressed in this talk.

Saturday, September 8, 2007

Sunday, September 9, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of September 10 ‹ 16, 2007

Monday, September 10, 2007

1:30 PM		MATH 126 Instructors Meeting	459 MSc

3:30 PM		Algebra Seminar			459 MSc
Dr. Alex DIESL, BGSU
"Examples of Morphic Rings"

4:30 PM		Honors MATH 295H Presentation	400 MSc
Dr. Corneliu HOFFMAN, BGSU
"Euler and Analysis Situs"
ABSTRACT:  Imagine a computer game that is played
on the surface of a not so large planet that might not
be spherical but possibly donut shaped or figure eight
shaped and so on.  Can you figure out its shape?  You
cannot lift off the planet.  You can only use the minimap
but can travel extensively on it and mark points and so on.
This is the year of Euler's 300th birthday; see http://www.maa.org/euler/

Tuesday, September 11, 2007

11:00 AM		Graduate Committee Meeting	400 MSc

1:00 PM		Statistics Education Seminar	459 MSc
Hope BARBERA, BGSU
"On-Line MATH 115"

2:30 PM		Analysis Seminar			459 MSc
George TURCU, BGSU
"Powers of Hypercyclic Functions for Some
Classical Operators"

3:30 PM		MATH 128/130 Instructors Meeting     400 MSc

Wednesday, September 12, 2007

10:30 AM		Statistics Group Meeting		459 MSc

3:30 PM		Calculus Seminar			459 MSc
"Writing in Calculus"

Thursday, September 13, 2007

10:30 AM		MATH 122 Instructors Meeting	400 MSc

10:45 AM		MATH 112 Instructors Meeting	459 MSc

3:45 PM		Foundational Math Committee	400 MSc

4:30 PM		Lattice Ordered Groups Seminar	459 MSc

Friday, September 14, 2007

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

12:00 Noon	Graduate Student Seminar		400 MSc
Kevin DREES
"C(X,Z)"

3:30 PM		Refreshments served prior to the colloquium

3:45 PM		Colloquium			459 MSc
Prof. S. Ejaz Ahmed, University of Windsor
"Shrinkage and Lasso/Lars and Related Estimation
Strategies in Partially Linear Models"
ABSTRACT:  In this talk, I consider a partially linear model where
the vector of coefficients in the linear part can be partitioned where
first sub-vector is the coefficient vector for main effects (e.g.
treatment effect, genetic effects) and the other is a vector for
Œnuisance¹ effects (e.g., age, lab). In this situation, inference about
may benefit from moving the least squares estimate for the full
model in the direction of the least squares estimate without the
nuisance variables (Steinian shrinkage), or to drop the nuisance
variables if there is evidence that they do not provide useful
information (pre-testing). We investigate the asymptotic properties
of Stein-type and pretest semiparametric estimators under
quadratic loss and show that under general conditions a Stein-type
semiparametric estimator improves on the full model conventional
semiparametric least square estimator. We also consider a LASSO type
estimator for partially linear models and give a Monte Carlo simulation
comparison of theses estimators. The comparison shows that shrinkage
method performs better than LASSO when the number of restriction on
parameter space is large.

Saturday, September 15, 2007

10:00A - 3:00P	Tenured/Tenure Track Faculty Retreat
577 Foundation, Perrysburg, OH

Sunday, September 16, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of September 17 - 23, 2007

Monday, September 17, 2007

1:30 PM		MATH 126 Instructors Meeting	459 MSc

3:30 PM		Algebra Seminar			459 MSc
Dr. Alex DIESL, BGSU
"Examples of Morphic Rings, Part II"

4:30 PM		MATH 295H Presentation		400 MSc
Professor Tom HERN, BGSU
"Geometry and Applications of the Singular
Value Decomposition"

Tuesday, September 18, 2007

11:00 AM		Graduate Committee		400 MSc

1:00 PM		Statistics Education Seminar	459 MSc
Hope BARBERA, BGSU
"Online MATH 115"

2:30 PM		Analysis Seminar			459 MSc

3:30 PM		TENURED Faculty Only Meeting	459 MSc

3:30 PM		MATH 128/130 Instructors Meeting   400 MSc

Wednesday, September 19, 2007

10:00 AM		MSAS Comprehensive Examination	400 MSc

10:30 AM		Statistics Seminar		459 MSc
Dr. Jie CHEN, University of Missouri-KC

1:30 PM		Education Seminar		108 Moore Musical Arts Bldg
"Using Blackboard"
Cheryl GRANT and Kris ROSENDALE

3:30 PM		Calculus Seminar			459 MSc
"Writing in Calculus Continued"

Thursday, September 20, 2007

10:30 AM		MATH 122 Instructors Meeting	400 MSc

10:45 AM		MATH 112 Instructors Meeting	459 MSc

2:30 PM		Undergraduate Committee		400 MSc

3:45 PM		Foundational Math Committee	400 MSc

4:30 PM		Lattice Ordered Groups Seminar	459 MSc
Dr. Wolf IBERKLEID

Friday, September 21, 2007

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

12:00 Noon	Graduate Student Seminar		400 MSc
Kevin DREES
"Cp(X,Z)"

3:30 PM		Refreshments served prior to the colloquium    459 MSc

3:45 PM		Colloquium			459 MSc
Dr. Jie Chen, University of Missouri- Kansas City
"A change point model approach for detecting
significant DNA copy number changes in aCGH data
ABSTRACT:  DNA copy number of a region of a genome is the number of copies of genomic DNA in that region. It is biologically known that DNA copy number changes correspond to chromosomal aberrations and signify abnormality of a cell. Cancer (and some other genetic diseases) development is usually relevant to DNA copy number changes on the genome. Modern biomedical technology, such as array Comparative Genomic Hybridization (aCGH), has made it possible to make whole genome copy number maps for a biological study. Therefore, identifying statistically significant DNA copy number changes is evidently crucial in cancer research, clinical diagnostic applications, and other related genomic research. We propose to use a change point model approach to identify statistical significant DNA copy number changes in aCGH datasets. Monte-Carlo simulation and applications of the proposed method on aCGH datasets of several cell lines (fibroblast cancer cell line, breast tumor cell line, and breast cancer cell line) indicate that the proposed method is very powerful in identifying DNA copy number changes.

Saturday, September 22, 2007

Sunday, September 23, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.

/ / Disclaimer
Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics Calendar
Week of September 24 - 30, 2007

Monday, September 24, 2007

10:30 AM		R Seminar			459 MSC
Professor James ALBERT & Dr. Maria RIZZO, BGSU
"A First Look at  R"

1:30 PM		MATH 115 Activity Section Instructor Meeting   400 MSc

3:30 PM		Algebra Seminar			459 MSc
Professor Wolf IBERLKEID, BGSU
"Frame Duality"

4:30 PM		MATH 295H Presentation		**220 MSc**
Dr. Alexander DIESL, BGSU
"Fermat's Last Theorem"
ABSTRACT:  The Pythagorean Theorem states that the lengths a and b of the two legs of a right triangle and the length c of the hypotenuse satisfy the wonderful equation a^2 + b^2 = c^2.  Even better is a right triangle for which a, b and c are whole numbers (like 3, 4 and 5).  In fact, it can be shown that there are infinitely many such "Pythagorean triples".
But what if we change the exponent from 2 to 3 (or higher)?  Can we still find an interesting (i.e. a, b and c all nonzero) whole number solution?  Pierre de Fermat, a 17th century mathematician, guessed (and claimed to have proved, though a written copy of his proof has never been found) that such solutions were impossible for exponents greater than 2.  This claim, which came to be known as Fermat's Last Theorem, went unsolved for over 300 years before being solved by Princeton mathematician Andrew Wiles in the 1990's.
In this talk, I will discuss some of the more basic mathematical ideas that have arisen from centuries worth of attempts to prove this theorem.  No prior knowledge of mathematics will be assumed, and participants will make something mathematical that they can take home!

Tuesday, September 25, 2007

2:30 PM		Analysis Seminar			459 MSc
Ozgur MARTIN, BGSU
"Dynamic behaviour of composition operators on the
Hardy space induced by linear fractional self-maps
on the unit disc"

3:30 PM		MATH 128/130 Instructors Meeting   400 MSc

Wednesday, September 26, 2007

10:30 AM		Statistics Seminar		459 MSc
Deniz AKDEMIR, BGSU
"Parsimonious Gaussian Model-Based Clustering"

1:30 PM		Education Seminar		459 MSC
Cheryl GRANT,BGSU
"Motivating Students"

3:30 PM		Calculus Seminar			459 MSc
"Substitution"

Thursday, September 27, 2007

8:00AM - 10:00AM	**Dept Office Closed/Staff attending A&S Meeting**

10:30 AM		MATH 122 Instructors Meeting	400 MSc

10:45 AM		MATH 112 Instructors Meeting	459 MSc

2:30 PM		Undergraduate Committee		400 MSc

3:45 PM		Foundational Math Committee	400 MSc

4:30 PM		Lattice Ordered Groups Seminar	459 MSc

Friday, September 28, 2007

12:00 Noon	Calendar Information Due to Cyndi
for next week's calendar

12:00 Noon	Graduate Student Seminar		400 MSc
Ben CARR
"Reflections of Unitary Buildings"

3:30 PM		Refreshments served prior to the colloquium

3:45 PM		Colloquium			459 MSC
Dr. Craig ZIRBEL, BGSU
"RNA multiple sequence alignment using stochastic
context-free grammars and 3D structural data"
ABSTRACT:  RNA molecules perform a variety of functions in the cells of all living organisms.  For example, proteins are assembled by ribosomes, which are primarily made of RNA.  Different organisms have slightly different RNA molecules as a result of their different evolutionary histories.  The differences appear primarily in the sequence of nucleotides (A, C, G, U)  of which the RNA molecule is composed.  At the same time these RNA molecules have many common structural features because they play the same functional role in their respective organisms.  This leads to a problem of probabilistic modeling:  what variability is allowed in the RNA sequence and what variability is not?  Stochastic Context-Free Grammars (SCFG) have been used to model variability in RNA sequences for just over a decade, and have been successful in aligning RNA sequences from different organisms in order to infer their structural similarities.  In the last few years, 3D crystal structures of entire RNA molecules have become available.  We illustrate how to use the wealth of information they give about non-Watson-Crick basepairs and RNA motifs to create highly accurate sequence alignments.  Accurate alignments have many uses, for example, inferring the evolutionary tree and the place of each organism in it.  3D structure-based alignments can help us infer 3D structure from sequence data alone, and can help in the search for new RNA molecules in genomic data.

Saturday, September 29, 2007

Sunday, September 30, 2007

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Cyndi Patterson,

If you wish to be placed on the e-mail distribution list, send e-mail to Craig Zirbel,

Previous calendars are available individually or in one single file for searching.