Weekly Calendar

BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of October 21, 1996

Tuesday, October 22

3-5:00 PM COLLEGE OF ARTS AND SCIENCES RECEPTION FOR NEW FACULTY AND
STAFF - Alumni Room, University Union

4:00 PM FACULTY MEETING - Room 459 MSC

Wednesday, October 23

2:30 PM ANALYSIS SEMINAR - Room 459 MSC
Craig Zirbel, Dept. of Mathematics and Statistics, BGSU.
"Statistical Mechanics for Magnetohydrodynamics, Part II"
Abstract: The equations of ideal magnetohydrodynamics (MHD)
describe the time evolution of magnetic fluids, such as
plasmas found in fusion reactors (tokamaks and stars). To
predict the long-time behavior of such a system, we turn
to the time-honored methods of statistical mechanics.
We will begin by discussing the canonical ensemble, then
consider some previous applications of statistical
mechanics to MHD, and finally consider a recent model
developed by Bruce Turkington (U. of Massachusetts) and
the speaker for MHD.

3:30 PM STATISTICS SEMINAR - Room 349 Business Administration Bldg.
Arthur Yeh, Applied Statistics and Operations Research, BGSU.
"Xlispstat"
Abstract: We will continue with an introduction to the
Xlispstat package, focusing on R-code and Vista, two
modules built on Xlispstat.

Thursday, October 24

1:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
Grace Montepiedra, Applied Stat and Operations Research, BGSU.
"The Application of Genetic Algorithms to the Construction
of Exact D-Optimal Designs"
Abstract: During the last decade, there has been widespread
use of a new class of optimization procedures called
genetic algorithms (GAs), which are designed to solve
complex combinatorial problems. GAs are search procedures
that are based on the principles of evolution and
heredity: a population of individuals (or solutions, if
used in the context of optimization) undergoes some
transformation and, during this process, the individuals
strive for survival. Consequently, the fittest
individual, or the optimal solution, is expected to
prevail. In this talk, I will consider the application of
GAs to the exact optimal design problem, which is known to
be a difficult one to solve due to its combinatorial
aspects and the possibility of having numerous locally
optimal solutions.

3:30 PM ALGEBRA SEMINAR - Room 459 MSC
Tom Hinrichs, Dept. of Mathematics and Statistics, BGSU.
"The Fundamental Theorem of Algebra, Gauss--1799"
This is the second of two talks.

Friday, October 25

3:45 PM COLLOQUIUM - Room 459 MSC
No colloquium this week due to the Fall Meeting of the Ohio
Section of the Mathematical Association of America (MAA) at
Denison University.
See http://www.bgsu.edu/departments/math/Ohio-section/Fall96/

This announcement is available on the Worldwide Web;
see http://www.bgsu.edu/departments/math/.
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of October 28 - November 1, 1996

Tuesday, October 29

1:30 PM MAPLE WORKSHOP - SciCompLab on the classroom (south) side
John Gresser, Dept. of Mathematics and Statistics, BGSU.
First meeting.

3:30 PM FACULTY MEETING - Room 459 MSC
Provost/VPAA Middleton and Dean Cranny will meet with the
faculty.

Wednesday, October 30

2:30 PM ANALYSIS SEMINAR - Room 459 MSC
Craig Zirbel, Dept. of Mathematics and Statistics, BGSU.
"Statistical Mechanics for Magnetohydrodynamics, Part II"
Abstract: The equations of ideal magnetohydrodynamics (MHD)
describe the time evolution of magnetic fluids, such as
plasmas found in fusion reactors (tokamaks and stars). To
predict the long-time behavior of such a system, we turn
to the time-honored methods of statistical mechanics.
This week we will discuss the canonical ensemble in detail
and consider some previous applications of statistical
mechanics to MHD. This continues a talk given two weeks
earlier; last week's talk was cancelled.

3:30 PM STATISTICS SEMINAR - VAX lab in the basement of Hayes Hall.
Jim Albert, Dept. of Mathematics and Statistics, BGSU.
"An introduction to S-Plus"
First of two talks.

Thursday, October 31

1:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
So-Hsiang Chou, Dept. of Mathematics and Statistics, BGSU.
"Some aspects of adaptive finite elements"
Abstract: In the presence of singularities such as a
reentrance corner or a slit in the problem of a fluid
domain, the local performance of uniform finite elements
will degrade. In this talk we will discuss how the optimal
behaviour can be recovered with the help of adaptive
method based on rigorous estimates.

3:30 PM ALGEBRA SEMINAR - Room 459 MSC
Tom Hinrichs, Dept. of Mathematics and Statistics, BGSU.
"The Fundamental Theorem of Algebra, Gauss--1799"

Usually the Departmental Colloquium meets at 3:45 on Friday in MSC 459.
However, this week's colloquium will take place at 3:45 on Monday,
November 4, with the following speaker and title:
Valen E. Johnson, Institute of Statistics and Decision
Sciences, Duke University
"An Alternative to GPA-based Evaluation of Student
Performance"

Week of November 4-8

Monday, November 4

3:30 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Valen E. Johnson, Institute of Statistics and Decision
Sciences, Duke University
"An Alternative to GPA-based Evaluation of Student Performance"
Abstract: In the fall of 1995, the Academic Affairs
Committee of the Arts and Sciences Council of Duke
University was charged with studying the problem of grade
inflation. Based on a preliminary analysis of several
years of undergraduate grade data, the Committee on Grades
concluded that anxiety over grade inflation stemmed as
much from disparities in the grading policies of different
departments and instructors as it did from the increasing
trend in average grade. It was clear that these
disparities caused a systematic bias against many of the
University's students.

In this talk, I describe an alternative measure of student
performance designed to overcome the inherent problems
associated with raw grades and derived grade point average
(GPA). This alternative measure has been endorsed by the
Academic Affairs Committee as a replacement for GPA-based
class rank, and will be reviewed for university-wide
adoption by the Duke University Arts and Sciences Council
in the forthcoming academic year.

Tuesday, November 5

2:30 PM MAPLE WORKSHOP - SciCompLab on the classroom (south) side
John Gresser, Dept. of Mathematics and Statistics, BGSU.
Topic: Starting today we will focus our attention on how
this technology can be used in the class room. We can
always discuss new commands, and strategies as they come
up in problems. I will go over some initial problems that
students coming out of Math 131 can look at during the
first few weeks of a Maple program. Polynomials are not
always so easy to graph. Maple's integration command can
be suppressed so that we can manipulate integrals just
like we do with pencil-paper techniques. Maple can be used
in a really powerful way to enhance the ideas we present
to students about setting up definite integrals for area,
volume, force on a dam, etc.

Wednesday, November 6

2:30 PM ANALYSIS SEMINAR - Room 459 MSC
Craig Zirbel, Dept. of Mathematics and Statistics, BGSU.
"Statistical Mechanics for Magnetohydrodynamics, Part III"
Abstract: We will discuss the classical ideal gas as an
example of the microcanonical and canonical ensembles of
statistical mechanics. Then we will return to MHD,
considering a model due to Fyfe and Montgomery (1976),
and the inadequacies that have become apparent with
this model.

3:30 PM STATISTICS SEMINAR - VAX lab in the basement of Hayes Hall.
Jim Albert, Dept. of Mathematics and Statistics, BGSU.
"Modeling using S-Plus"
Second of two talks.

7:00 Pm CAREER NIGHT
James Gabel, Nationwide Insurance Co.
Actuarial science

Thursday, November 7

1:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
Paul Endres, Department of Chemistry, BGSU.
"Genetic algorithms in chemical physics"
Abstract: Continuing the previous discussions on the use of
Genetic Algorithms, Dr. Paul Endres will discuss two
recent papers in the area of Chemical Physics. This will
be a very informal presentation and there will certainly
be time for discussing other applications...

The first application is finding the optimal set of
parameters in an approximation scheme for solving
molecular problems. (This is basically the Semiempirical
Molecular Orbital scheme, discussed earlier this semester,
applied in an area where the traditional parameters aren't
appropriate.)

The second paper uses a modified GA to find the lowest
energy geometry of a cluster of N-atoms (n=4-30.) This is
actually a hybrid method that uses a GA to find a new
generation, but then uses a conjugate gradient method to
minimize the energy (coarsely) of each individual. (This
is no longer true Darwinian evolution, but we must not
take our metaphors too seriously.)

3:30 PM ALGEBRA SEMINAR - Room 459 MSC
Debra Waugh, University of Michigan
"Quotients of Coxeter groups under the weak order"
Abstract: We determine which quotients of affine Coxeter
groups are lattices under the weak order. By a result of
Bjorner, we know that quotients of arbitrary Coxeter
groups are meet semi-lattices under the weak order, so we
need only consider the question of existence of upper
bounds within the quotients.

Let W_a be an affine Coxeter group with corresponding
finite Weyl group W. We will use certain regions of the
Shi arrangement of hyperplanes (the regions we will use
are translations of the Weyl chambers of W) both to
establish the existence of the upper bound in the
quotients which are lattices and to demonstrate that there
are pairs of elements with no upper bound in the quotients
which are not lattices.

Friday, November 8

3:30 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Mark Becker, Dept. of Biostatistics, University of Michigan
"EM Algorithms for Nonmissing Data"
Abstract: In this talk we review the EM algorithm and the
general principle of optimization transfer; i.e.,
optimizing a surrogate function rather than the original
function of interest. Very many problems in computational
statistics involve the optimization of an objective
function, with notable examples being the maximization of
log--likelihood functions and posterior distributions.
Important features of the EM algorithm that derive from
the optimization transfer principle are numerical
stability, the substitution of simple optimization
problems for difficult ones, and a well understood theory
of local and global convergence properties. Several
examples of optimization transfer algorithms useful in
computational statistics are used to illustrate the broad
generality of these features of the EM algorithm.

This announcement and a schedule of future colloquia are available on
the Worldwide Web; see http://www.bgsu.edu/departments/math/.
If you would like to place a link to this calendar on your page,
use html code

Department of Mathematics and Statistics calendar
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of November 11-15

Monday, November 11

3:30 PM MAPLE WORKSHOP - SciCompLab on the classroom (south) side
John Gresser, Dept. of Mathematics and Statistics, BGSU.
Topics: 1) Applications of integration. Well chosen names
seem to help students a lot with the concepts that they
seem to struggle with in a pencil-paper environment. 2)
The definition of ln(x). It's hard to make this a real
and believable issue. Maple helps. 3) Some complications
with the antiderivative of 1/x. Maple, properly, says
it's ln(x), even when x is negative. Hmmmm. 4) Limits.
How do we know Maple's answer is correct? We use
L'Hopital's Rule. We'll discuss an example of a function
f(x) with a nonzero limit as x goes to infinity, but which
always evaluates to 0, as soon as we let x be more than
just a little bit. 5) Rate of change applications, and an
annoying Maple complication. 6) Techniques of
integration. It's time to bring out lots of new Maple
commands. They're impressive!

Wednesday, November 13

2:30 PM ANALYSIS SEMINAR - Room 459 MSC
Neal Carothers, Dept. of Mathematics and Statistics, BGSU.
To be announced.

3:30 PM STATISTICS SEMINAR - Scientific Computing Lab
Jim Albert, Dept. of Mathematics and Statistics, BGSU.
"ActivStats"
Abstract: We'll preview ActivStats -- a new program for
learning probability statistics (including videos,
lecture, hands-on activities and a statistics package).

Thursday, November 14

1:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
Fausto Morales, Dept. of Mathematics and Statistics, BGSU.
"Splines in computer graphics and geometric modeling"
Summary: When defining curves and surfaces, a problem often
encountered both in computer graphics and industrial
design is the following: Either the relevant curves must
run exactly through predetermined points, or a limit can
be assigned to the distance between the curves and the
points. The first system is accurate, but each segment of
a piecewise curve is limited by two adjacent points. The
second system yields a smaller number of segments, since
each segment can account for more than two points, with
the major advantage of reducing the number of patches
making a surface, but at the cost of a certain loss of
accuracy. Such representations of curves and surfaces are
called splines. We shall briefly survey and compare
several popular processes for defining splines.

3:30 PM ALGEBRA SEMINAR - Room 459 MSC
Jack Hayden, Dept. of Mathematics and Statistics, BGSU.
"Collineations in finite planes: Can there be a rigid plane?"

Friday, November 15

3:30 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Gabor J. Szekely, Dept. of Mathematics and Statistics, BGSU
and Eotvos Lorand Technical University, Budapest
"Property is a nuisance"
Memorial Lecture in Honor of Paul Erdos
Abstract: The most prolific mathematician of our time died
in September 1996 at the age 83 while attending a
mathematical conference in Warsaw. Erdos was one of the
most influential scientists of our century, founded many
new fields of mathematics, including discrete mathematics
which is the foundation of computer science, published
more than 1500 papers, had 500 co-authors, and to quote
The New York Times, was the "prince of problem solvers and
the absolute monarch of problem posers". He was a member
of the U.S. National Academy of Sciences and many other
national academies. He also initiated the Budapest
Semesters in Mathematics program for outstanding American
undergraduates, of which the speaker was the program
manager for more than ten years. In fact, the speaker
first met Erdos at the age of 9, and remained close
friends with him until his death.

Week of November 18-22

Monday, November 18

3:30 PM MAPLE WORKSHOP - SciCompLab on the classroom (south) side
John Gresser, Dept. of Mathematics and Statistics, BGSU.
Topics: 1) Techniques of integration. It's time to bring
out lots of new Maple commands. They're impressive! We
can use Maple to integrate just like we do with pencil and
paper. This can be a useful way for students to study
integration techniques. These techniques can be used to
evaluate some integrals that Maple can't do. Too bad
Maple, we can. 2) Sequences and series. If there is
time, we'll start work on this topic.

Wednesday, November 20

2:30 PM ANALYSIS SEMINAR - Room 459 MSC
Neal Carothers, Dept. of Mathematics and Statistics, BGSU.
"More on the Ergodic Theorem"
Abstract: We continue with our informal discussion of the
ergodic theorem, concentrating on a few specific examples.
In particular, we will outline applications (albeit
tenuous) to number theory, probability, and Fourier
analysis. Time permitting, we may even discuss the
proofs!

7:30 PM KME Guest Speaker - Room 459 MSC
Gabor Szekely, Dept. of Mathematics and Statistics, BGSU.
"Numbers and Letters"

Thursday, November 21

1:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
Comer Duncan, Dept. of Physics and Astronomy, BGSU.
"A hyperbolic solver for vacuum axisymmetric spacetimes:
the method and weak gravitational wave tests"

3:30 PM ALGEBRA SEMINAR - Room 459 MSC
Jack Hayden, Dept. of Mathematics and Statistics, BGSU.
"Collineations in finite planes: Can there be a rigid plane?"
Second talk.

Friday, November 22

3:30 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Arjun Gupta, Dept. of Mathematics and Statistics, BGSU.
"Occam's razor via information criterion"
Abstract: In this talk I will present an application of the
Scwartz information criterion (SIC) to testing and
estimation of multiple covariance change points for a
sequence of m-dimensional (m > 1) Gaussian random vectors.
We will estimate the number of change-points as well as
their location. The consistency of the estimator is
proved. The unbiased SIC is also obtained. Then
asymptotic null distribution of the test statistic is
derived. The result is applied to the weekly prices of
two stocks (m=2) from 1990 to 1991, and changes are
successfully detected.

Department of Mathematics and Statistics Calendar
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of November 25-29

Monday, November 25

Enjoy Thanksgiving break!

Week of December 2-6

Monday, December 2

3:30 PM MAPLE WORKSHOP - SciCompLab on the classroom (south) side
John Gresser, Dept. of Mathematics and Statistics, BGSU.

Wednesday, December 4

3:00 PM ANALYSIS SEMINAR - Room 459 MSC
**** Note change in time ****
Kit Chan, Dept. of Mathematics and Statistics, BGSU.
"Wiener's 1/f theorem"
Abstract: One of Wiener's famous theorems states that if
f(x) has an absolutely convergent Fourier series and never
vanishes, then 1/f has an absolutely convergent Fourier
series. Without using Gelfand theory, two elementary
proofs for this theorem have been found by D. J. Newman
and J. Spilker. I will present these two interesting
proofs, and also an extension found by M. von Renteln to n
functions. All graduate students are welcome.

4:00 PM PHYSICS AND ASTRONOMY COLLOQUIUM - Room 106 Overman
Hung T. Huynh, NASA Lewis Research Center, Cleveland, OH
"A simple upwind scheme"
Abstract: Upwind schemes are currently popular in
Computational Fluid Dynamics, Astrophysics, Hydrodynamics,
Solid Mechanics ... These schemes are generally perceived
as difficult to formulate and implement. In this talk, I
will present a simple upwind scheme. The ingredients are:
the midpoint rule, a linearization, a diagonalization, and
the mean value theorem. I will also discuss a few open
problems related to upwind methods.

Thursday, December 5

3:30 PM ALGEBRA SEMINAR - Room 459 MSC
Micael Abramson, Dept. of Mathematics and Statistics, BGSU.
"The Feit-Higman Theorem"

Friday, December 6

3:30 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Armond Spencer, State University of New York at Potsdam
"Student Sensitive Teaching"
Abstract: A discussion of some experiences, ideas, opinions,
and principles involved in developing a supportive
environment for learning mathematics.

Department of Mathematics and Statistics Calendar
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of January 13-17

Thursday, January 16

1:30 PM APPLIED MATHEMATICS SEMINAR - Room 459 MSC
Organizational meeting
Contact Gordon Wade at gwade@math.bgsu.edu
or see http://www-math.bgsu.edu/~gwade/seminar/

This semester we are privileged to have Professor Panayot
Vassilevski (member, Bulgarian Academy of Sciences), here as a
visiting scholar. Professor Vassilevski is a numerical analyst
with expertise in, among other things, multilevel and adaptive
techniques for PDE models. I believe we may look forward to
several enlightening talks from him this semester.

The first Colloquium of the semester will be Friday, January 24.

Department of Mathematics and Statistics Calendar
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of January 20-24

Tuesday, January 21

2:30 PM STATISTICS SEMINAR - Room 459 MSC
"Robust statistical procedures"
P. K. Sen, Distinguished Lukacs Professor, BGSU.

The regular meeting time for the Statistics seminar will be
Mondays at 3:30.

Thursday, January 23

2:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
"Introduction to Hierarchical Methods"
Panayot Vassilevski, BGSU and Bulgarian Academy of Sciences
Abstract: For solving elliptic PDEs discretized by finite
elements on grids generated by successive refinement one
may exploit various direct finite element space
decompositions. If the decomposition is stable and the
coordinate spaces admit computationally feasible basis one
can construct preconditioned iterative methods that are
based on (inexact) solutions in the coordinate subspaces
with optimal overall complexity. In this talk a brief
description of the simplest finite element space
decomposition based on the nodal hierarchical basis will
be given. Some ways of stabilizing the HB decomposition
based on approximate L_2 projections that lead to stable
direct decomposition and respective optimal order
hierarchical iterative methods will be also described.

Friday, January 24

3:30 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
"Development of theory of elliptic curves leading to Wiles'
proof of Fermat's Last Theorem"
Josef Blass, Dept. of Mathematics and Statistics, BGSU.
Abstract: The talk will discuss the theory of elliptic
curves and applications of their theory to curves of genus
greater than one. It will include some explicit examples
of the modularity.

Department of Mathematics and Statistics Calendar
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of January 27-31

Monday, January 27

3:30 PM STATISTICS AND PROBABILITY SEMINAR - Room 459 MSC
Meeting to organize and schedule a seminar in which faculty
and graduate students may present their research work and/or
discuss recent journal articles. Please contact Edsel Pena
if you would like to attend the seminar but cannot make this
meeting.

Tuesday, January 28

2:30 PM STATISTICS SEMINAR - Room 459 MSC
P. K. Sen, Distinguished Lukacs Professor, BGSU.
"Robust statistical inference for the location model"

3:30 PM ANALYSIS SEMINAR - Room 459 MSC
Gordon Wade, Dept. of Mathematics and Statistics, BGSU.
"Sobolev spaces and functions of bounded variation"
Goals/Outline:
(1) Introduce a generalization of the notion of the "total
variation" of functions defined on a higher dimensional
(e.g., greater than one) domain Omega, leading to the
defintion of the set "BV(Omega)" --- the subspace of
functions in L1(Omega) which have bounded total variation.
(2) Indicate the relationship of BV(Omega) to the somewhat
more well-known Sobolev spave "W(1,1)(Omega)".
(3) Outline a proof of the fact that BV(Omega) is compactly
imbedded in L1(Omega), and
(4) Indcate why we care.

Thursday, January 30

2:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
Panayot Vassilevski, BGSU and Bulgarian Academy of Sciences
"Computational aspects of multilevel hierarchical methods"
Abstract: In this talk we will describe algorithms that
implement various multilevel methods and point out on
their similarities and differences. Some numerical
comparison of the performance of these multilevel methods
on model examples of second order elliptic PDEs will be
shown.

3:30 PM ALGEBRA SEMINAR - Room 400 MSC
Michael Abramson, Dept. of Mathematics and Statistics, BGSU.
"The Feit-Higman Theorem"

Friday, January 31

3:30 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Helene Massam, Dept. of Math. and Stat., York University
"Quadratic regression for Wishart distributions"
Abstract: If U and V are independent random variables which
are gamma distributed with the same scale parameter, then
there exist real numbers a and b such that
E(U|U+V)=a(U+V) and E(U^2|U+V)=b(U+V)^2. This, in fact,
is characteristic of gamma distributions. Our paper
extends this property to the Wishart distributions in a
suitable way, by replacing the real number U^2 by a pair
of quadratic functions of the symmetric matrix U. This
leads to a new characterization of the Wishart
distributions.

Department of Mathematics and Statistics Calendar
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of February 3-7

Tuesday, February 4

2:30 PM STATISTICS SEMINAR - Room 459 MSC
P. K. Sen, Distinguished Lukacs Professor, BGSU.
"Robust statistical procedures"

3:30 PM ANALYSIS SEMINAR - Room 459 MSC
Gordon Wade, Dept. of Mathematics and Statistics, BGSU.
"An L-p version of the Arzela Ascoli Theorem"

Wednesday, February 5

3:30 PM STATISTICS AND PROBABILITY SEMINAR - Room 447
Hanfeng Chen, Dept. of Mathematics and Statistics, BGSU.
"Estimating Function Method in the Presence of Nuisance
Parameter"

4:30 PM PHYSICS DEPARTMENT SEMINAR - Room 106 Overman
Craig Zirbel, Dept. of Mathematics and Statistics, BGSU.
"Mass transport by random fluid flows"

Thursday, February 6

2:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
Panayot Vassilevski, BGSU and Bulgarian Academy of Sciences
"Computational aspects of multilevel hierarchical methods"
Second talk.

3:30 PM ALGEBRA SEMINAR - Room 459 MSC
Michael Abramson, Dept. of Mathematics and Statistics, BGSU.
"The Feit-Higman Theorem"

Friday, February 7

3:30 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Patrick Billingsley, University of Chicago
"Large Cyclic Permutations and Large Prime Divisors"
Abstract: Suppose a permutation on the integers 1,...,n is
drawn at random. Write it as a product of cyclic
permutations, let C_1 be the length of the cycle containing
1, let C_2 be the length of the cycle containing the
smallest number not contained in the first cycle, and so
on. We can derive the joint limiting distribution (as n
goes to infinity) of (C_1/n,C_2/n,...). Let N_n be an
integer between 1 and n, drawn at random; let
Q_1,Q_2,... be the prime divisors of N_n, arranged in
decreasing order. Then (Q_1/log n, Q_2/log n,...) has the
same limiting distribution as the C_i/n, and this
distribution has connections with mathematical population
biology.

Department of Mathematics and Statistics Calendar
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of February 10-14

Note: the schedule is subject to change due to talks given by
candidates for the Assistant Professor position.
See http://www-math.bgsu.edu/~zirbel/weekly_cal.html
for updates.

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

Tuesday, February 11

2:30 PM STATISTICS SEMINAR - Room 459 MSC
P. K. Sen, Distinguished Lukacs Professor, BGSU.
"Robust statistical procedures"

3:30 PM ANALYSIS SEMINAR - Room 459 MSC
Kit Chan, Dept. of Mathematics and Statistics, BGSU.
"The analytic version of Wiener's 1/f Theorem"

Wednesday, February 12

3:30 PM STATISTICS AND PROBABILITY SEMINAR - Room 447 MSC
Craig Zirbel, Dept. of Mathematics and Statistics, BGSU.
"Lagrangian observations on homogeneous random flows"
Abstract: Imagine an ocean and all the currents in it.
Model the ocean's velocity field as a random vector field
in space and time. Its probability law is a description
of the joint distributions of the velocities at different
locations and at different times. Now imagine a particle
drifting with the currents. Its velocity is a random
process in time (time series); these are `Lagrangian
observations' of the ocean's velocity field. We are
interested in the relationship between the probability
laws of the two processes.

7:30 PM KME talk - Room 459 MSC
Cliff Long, Dept. of Mathematics and Statistics, BGSU.
"A mathematical show and tell"

Thursday, February 13

2:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
Do Y. Kwak, Korea Advanced Institute of Science and Technology
"Multigrid for Nonsymmetric Elliptic Problems"

Friday, February 14

3:30 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Liz Jurisich, Rutgers University
"Free Lie algebras and the Monster Simple Group"

Department of Mathematics and Statistics Calendar
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of February 17-21

Tuesday, February 18

2:30 PM STATISTICS SEMINAR - Room 459 MSC
P. K. Sen, Distinguished Lukacs Professor, BGSU.
"Rank tests for the location model"

3:15 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Sergey Shpectorov, Ohio State University
"Almost classical geometries and sporadic groups"
Abstract: Old and new results concerning geometries of
sporadic simple groups will be discussed, with the
emphasis on the similarities and connections with the
classical Tits' theory of buildings.

Wednesday, February 19

3:30 PM STATISTICS AND PROBABILITY SEMINAR - Room 447 MSC
Jim Albert, Dept. of Mathematics and Statistics, BGSU.
"Hierarchical modeling and Bayes factors"
Abstract: I will introduce Bayesian hierarchical model in
the setting of learning about proportions of successful
heart transplant operations for a number of hospitals.
A Poisson/gamma model is used to fit the data. We first
describe how one checks this model using classical methods
and then describe alternative Bayesian methods for model
checking.

Thursday, February 20

2:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
J. Gordon Wade, Dept. of Mathematics and Statistics, BGSU.
"Necessary conditions for total variation minimization and
minimal surfaces"
Abstract: We consider numerical approaches for solving
problems involving total variation minimization for image
reconstruction and for minimal surfaces. The problems are
formulated as nonquadratic minimization problems for image
reconstruction. The first-order necessary condition or
"Euler equation" for a minimizer yields a quasilinear
elliptic equation of the form

[ L^*L + A(u) ] u = -L^*z

with boundary conditions. Here, L is a bounded linear
operator and A(u) is a standard self-adjoint second order
elliptic operator in which the coefficient a depends on u,
by

[a(u)](x) = c/sqrt(|grad u(x)|^2 + b^2)

where b and c are small constants. A common and effective
strategy for solving the Euler equation is the fixed point
method.

Total variation minimization has been quite beneficial in
recent applications in image denoising and deblurring,
laser interferometry, electrical tomography, and
estimation of permeabilities in porous media flow
models. Its main advantage is that it improves the
conditioning of the optimization problem while not
penalizing discontinuities in the reconstructed image. The
main difficulty in its use lies in the fact that the Euler
equation is nonlinear with rapidly varying coefficients
and can have a rather large number (e.g., 640-squared) of
degrees of freedom.

3:30 PM ALGEBRA SEMINAR - Room 459 MSC
Curtis Bennett, Dept. of Mathematics and Statistics, BGSU.
"Connected components of the Universal Twin"

Friday, February 21

3:15 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Keith Kearns, University of Arkansas
"Minimal varieties of abelian algebras"
Abstract: A variety is an equationally defined class of
algebras. A variety is minimal if it is minimal under
inclusion among varieties that contain nontrivial
algebras. This talk is about recent results concerning
minimal varieties, including the classification of locally
finite, abelian, minimal varieties.

Department of Mathematics and Statistics Calendar
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of February 24-28

Monday, February 24

3:15 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Stefan Catoiu, University of Wisconsin, Madison
"Ideals in tensor powers of the enveloping algebra U(sl_2)"
Abstract: If K is an arbitrary field of characteristic zero,
the enveloping algebra U = U(sl_2(K)) is the polynomial
ring in the noncommuting indeterminates a,b,z subject to
the relations ab-ba=a, za-az=2a, and zb-bz=-2b. Using the
representation theory of sl_2 we can describe all
two-sided ideals of U. Precisely, if I is an ideal of U,
then there exists a single generator f_I for I which s
unique subject to certain additional conditions. Thus,
all the properties of I are encoded in this generator f_I.

See posters in the department for the continuation of the
abstract.

Tuesday, February 25

2:30 PM STATISTICS SEMINAR - Room 459 MSC
P. K. Sen, Distinguished Lukacs Professor, BGSU.
"Adaptive rank tests for location"

3:30 PM ANALYSIS SEMINAR - Room 459 MSC
Gabor Szekely, Dept. of Mathematics and Statistics, BGSU.
"Applications of Wiener-Levy's theorem on Fourier transforms
of L_1 functions"

Wednesday, February 26

3:30 PM STATISTICS AND PROBABILITY SEMINAR - Room 300 MSC
*** Note change in location ***
Jim Albert, Dept. of Mathematics and Statistics, BGSU.
"Hierarchical modeling and Bayes factors - Part II"

4:30 PM PHYSICS DEPARTMENT SEMINAR - Room 106 Overman
Ken Elder, Oakland University
"Numerical Investigation of State Selection in Non-Equilibrium
Systems"
Abstract: The appearance of lamellar or periodic states in
driven non-equilibrium systems is an interesting phenomena
that occurs in many systems such as in Rayleigh Benard
convection, directional solidification, parametrically
driven surface waves, electroconvection and directional
viscous fingering. Quite often these lamellar states are
destabilized by secondary instabilities leading toward
phases that are chaotic or disordered in both space and
time. For spatially extended systems this phenomena is
commonly referred to as spatiotemporal chaos. In this
talk I would like to discuss the selection of such states
in a simple model of directional solidification known as
the damped Kuramoto Sivashinsky equation. Extensive
numerical simulations of this equation are used to explore
the selection of the non-equilibrium states and to
describe the period/chaotic transition in both one and two
dimensions.

7:30 PM KME MOVIE
Copyright restrictions only allow us to call this
"The movie about computer hackers that might have been named
Tennis Shoes"
Contact Kim Nettling, knettli@bgnet

Thursday, February 27

2:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
J. Gordon Wade, Dept. of Mathematics and Statistics, BGSU.
"Computational aspects of total variation minimization"
Abstract available via WWW at:
http://www-math.bgsu.edu/~gwade/copper97/

3:30 PM ALGEBRA SEMINAR - Room 459 MSC
Curtis Bennett, Dept. of Mathematics and Statistics, BGSU.
"Connected components of the Universal Twin"

Friday, February 28

3:30 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Michael Anthony Bennett, University of Michigan, Ann Arbor
"On simultaneous Pell equations and ranks of elliptic curves"
Abstract: If a is a positive square integer, then the Pell
equation x^2-az^2=1 has infinitely many solutions in
positive integers, corresponding to units in the related
quadratic field. If, however, a and b are distinct nonzero
integers, then the analogous situation for the
simultaneous Diophantine equations x^2 - a z^2 =1 and
y^2 - b z^2 = 1 is very different. We discuss these latter
equations, with particular reference to the Mordell-Weil
rank of families of certain elliptic curves.

Department of Mathematics and Statistics Calendar
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of March 3-7

Tuesday, March 4

2:30 PM STATISTICS SEMINAR - Room 459 MSC
P. K. Sen, Distinguished Lukacs Professor, BGSU.
"Adaptive rank tests for location"

Wednesday, March 5

3:30 PM STATISTICS AND PROBABILITY SEMINAR - Room 300 MSC
Gabor Szekely, Dept. of Mathematics and Statistics, BGSU.
"Unlikely Results on Maximum Likelihood"

Thursday, March 6

2:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
Panayot Vassilevski, BGSU and Bulgarian Academy of Sciences
To be announced.

Friday, March 7

3:30 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Andrew M. W. Glass, Dept. of Mathematics and Statistics, BGSU.
"Weierstrass's $\wp$-function and Transcendence"
Abstract: As a consequence of recent work related to
functions associated with Weierstrass's $\wp$-function, new
results have been obtained related to the algebraic
independence of e and pi. I give a survey of these
breakthroughs due to Nesterenko and a team at St. Etienne.

Department of Mathematics and Statistics Calendar
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of March 10-14

Tuesday, March 11

2:30 PM STATISTICS SEMINAR - Room 459 MSC
Pranab K. Sen, Distinguished Lukacs Professor, BGSU.
"Statistical Functionals and Robustness Considerations"

7:30 PM KME EVENT - Room 459 MSC
!!!! Pizza and pop will be provided !!!!
Charles Holland, Dept. of Mathematics and Statistics, BGSU.
"Permutations of the Bells: The mathematics of change ringing"

Wednesday, March 12

3:30 PM STATISTICS AND PROBABILITY SEMINAR - Room 300 MSC
Edsel Pena, Dept. of Mathematics and Statistics, BGSU.
"Smooth Goodness-of-Fit Tests"

Thursday, March 13

2:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
So-Hsiang Chou, Dept. of Mathematics and Statistics, BGSU.
"Introduction to cell-centered finite differences"

Friday, March 14

3:30 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Pranab K. Sen, Distinguished Lukacs Professor, BGSU.
"Bundle strength in a stochastic environment"
Abstract: In the context of statistical strength of a bundle
of parallel filaments, whose lengths, cross-sections,
material compositions or other concomitant variates may be
stochastic in nature, a class of (nonlinear/nonparametric)
conditional sample functionals crop up in a natural way.
Such conditional functionals show up in many other
applications in biometry, reliability theory and survival
analysis.

Although stochastic approximation methodology is appealing
in this context, there are some basic differences. As
such an alternative statistical analysis scheme is
considered, and the relevant statistical properties are
studied.

Department of Mathematics and Statistics Calendar
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of March 17-21

Tuesday, March 18

2:30 PM STATISTICS SEMINAR - Room 459 MSC
Pranab K. Sen, Distinguished Lukacs Professor, BGSU.
"Statistical Functionals and Robustness Considerations"

Wednesday, March 19

3:30 PM STATISTICS AND PROBABILITY SEMINAR - Room 300 MSC
Edsel Pena, Dept. of Mathematics and Statistics, BGSU.
"Smooth Goodness-of-Fit Tests"

Thursday, March 20

2:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
Panayot Vassilevski, BGSU and Bulgarian Academy of Sciences
"Preconditioning non-symmetric and indefinite problems"
Abstract: In this talk a general approach of preconditioning
non--symmetric and possibly indefinite problems will be
presented. It relies on a subspace correction idea;
namely, by solving at every iteration a coarse problem one
can essentially use any available preconditioner for the
principal spd part of the original problem, now in a
subspace form. Similar idea can be used for
preconditioning problems discretized on grids with local
refinement.

Friday, March 21

No colloquium this week.

Department of Mathematics and Statistics Calendar
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of March 31 - April 4

Tuesday, April 1

2:30 PM STATISTICS SEMINAR - Room 459 MSC
Pranab K. Sen, Distinguished Lukacs Professor, BGSU.

Wednesday, April 2

3:45 PM STATISTICS AND PROBABILITY SEMINAR - Room 300 MSC
Grace Montepiedra, Applied Statistics and Operations Research, BGSU.

Thursday, April 3

Friday, April 4

3:30 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Panayot Vassilevski, BGSU and Bulgarian Academy of Sciences
"Iterative solution of elliptic PDE exploiting hierarchy of
discretizations"
Abstract: In this talk the topic of fast solution of large
linear systems of algebraic equations will be addressed,
by first pointing out the specifics of the problems coming
from discretization of typical elliptic partial
differential equations. A main class of iterative schemes
that come naturally from the discretization method will
then be outlined. Those in particular include the
hierarchical basis method and multigrid. The methods can
be formulated and analyzed in a joint framework giving
rise to well known Gauss--Seidel iterative methods of
block type where each block corresponds to a subspace (or
a grid). Some numerical illustration will also be given.

Department of Mathematics and Statistics Calendar
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of April 7 - 11

Monday, April 7

3:30 PM MATH 591 SEMINAR - Room 445 MSC
Nancy Alfieri, Office of Cooperative Education

Tuesday, April 8

2:30 PM STATISTICS SEMINAR - Room 459 MSC
Pranab K. Sen, Distinguished Lukacs Professor, BGSU.

3:30 PM FACULTY MEETING - Room 459 MSC

Wednesday, April 9

3:30 PM STATISTICS AND PROBABILITY SEMINAR - Room 300 MSC
Marcus Agustin, Dept. of Mathematics and Statistics, BGSU.
"Reliability of a System Following a Two-Stage
Debugging Scheme"

3:30 PM MATH 591 SEMINAR - Room 300 Student Services, Career Resources Ctr.
Robert McLaird

Thursday, April 10

2:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
Ken Senior, Dept. of Mathematics and Statistics, BGSU.
"Differentiability of solution semigroups for certain
parabolic PDE"

3:30 PM ALGEBRA SEMINAR - Room 459 MSC
***** postponed until April 17 *****

Friday, April 11

No colloquium this week because of the MAA Ohio Section meeting,
April 11-12, at Youngstown State University.
See http://www.bgsu.edu/departments/math/Ohio-section/Meetings/Spring97/

This announcement and a schedule of future colloquia are available on
the Worldwide Web; see http://www.bgsu.edu/departments/math/.
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of April 14 - 18

Tuesday, April 15

2:30 PM STATISTICS SEMINAR - Room 459 MSC
Pranab K. Sen, Distinguished Lukacs Professor, BGSU.
"Qualitative robustness and differentiability properties"

Wednesday, April 16

3:30 PM STATISTICS AND PROBABILITY SEMINAR - Room 300 MSC
Norman Preston, Dept. of Mathematics and Statistics, BGSU.
"Numerical and Monte Carlo Verification of the First Spacings Law"

7:30 PM KME SEMINAR - Scientific Computing Lab, MSC
John Gresser, Dept. of Mathematics and Statistics, BGSU.
"Maple and other software used in mathematics"

**** Pizza and pop as always when Dr. Gresser concludes.

9:00 PM KME ELECTIONS - Room 459 MSC

Thursday, April 17

2:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
Hu Jie, Dept. of Mathematics and Statistics, BGSU.
"Preconditioned Conjugate Gradients"

3:30 PM ALGEBRA SEMINAR - Room 459 MSC
Bruno Bosbach, University of Kassel
"Some remarks on ideal semigroups:
(A contains B) implies (A divides B)"

Friday, April 18

3:30 PM Coffee
3:45 PM COLLOQUIUM - Room 459 MSC
Steve Stigler, University of Chicago
"From Pascal's Triangle to Modern Probability and Statistics"
Abstract: It is not widely appreciated that, historically,
many of the most important modern concepts and results
have been derived directly from that most elementary of
arithmetic devices, Pascal's Arithmetic Triangle, which
itself dates from at least the 11th Century. The
historical derivation lends clarity to the understanding
of these results today. The topics discussed range from
combinatorial probability and the normal distribution to
regression, correlation, and the inversion of Fourier
transforms.

Saturday, April 19

1:00 PM KME BANQUET - Towers Inn restaurant
Contact Curt Bennett, cbennet@bgnet.bgsu.edu

***************** LUKACS SYMPOSIUM APRIL 25-27 *******************

The Seventh Eugene Lukacs Symposium will be held at the
Department of Mathematics and Statistics, Bowling Green
State University, Bowling Green, Ohio on April 25-27,
1997. Professor P.K. Sen of the University of North Carolina
is the Lukacs Distinguished Professor for the 1996-1997
academic year.
See http://www-math.bgsu.edu/~albert/lukacs.html
for details.

Week of April 21 - 27

Tuesday, April 22

3:30 PM ANALYSIS SEMINAR - Room 459 MSC
Partha Srinivasan, Dept. of Mathematics and Statistics, BGSU.
"The Spectral Theorem for Normal Operators"
This talk is quite accessible to graduate students and
applies many of the results presented in the analysis
curriculum here through functional analysis. These include
the Stone - Weierstrass Theorem, the Riesz Representation
Theorem on functionals spaces of continuous functions, and
Liouville's Theorem on bounded entire functions.

Wednesday, April 23

2:30 PM STATISTICS SEMINAR - Room 459 MSC
Pranab K. Sen, Distinguished Lukacs Professor, BGSU.

3:20 PM FACULTY MEETING - Room 459 MSC
Discussion with Deans Katzner and Cranny

Thursday, April 24

2:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
Peng Gu, Dept. of Mathematics and Statistics, BGSU.
"Introduction to multigrid convergence theory"

Friday, April 25

EUGENE LUKACS SYMPOSIUM "Robustness in Multivariate and Survival Models"
See http://www-math.bgsu.edu/~albert/program.html for complete schedule.

1:20 - 3:30 PM Session I - 515 Life Science
3:45 - 5:30 PM Session II - 515 Life Science
7:00 -10:00 PM Mixer - Best Western Motel (1450 E. Wooster)

Saturday, April 26

EUGENE LUKACS SYMPOSIUM

8:30 - 10:15 AM Session III - 095 Overman
10:30AM - 12:15 PM Session IV - 095 Overman
1:45 - 3:30 PM Session V - 095 Overman
3:45 - 5:30 PM Session VI - 095 Overman
6:30 - 9:00 PM Banquet - Kaufman's at the Lodge (1628 E. Wooster)

Also on Saturday,

1:00 - 4:00 PM KME PICNIC - City Park
The picnic is open to all faculty, grads, staff, and KME
members, and each person may bring a guest.

Hot dogs and hamburgers will be provided. Students, please
bring pop and chips to share. Those who have the facilities
could bring something other than pop and chips. Bring your
family, but please bring a dish to serve at least as many
people as you bring.

We will be playing softball and volleyball.

Contact Kim Nettling (knettli@bgnet) with questions.

Sunday, April 27

EUGENE LUKACS SYMPOSIUM

8:30 - 10:15 AM Session VII - 095 Overman
10:30AM - 12:45 PM Session VIII - 095 Overman

-----------------------------------------------------------------------
This announcement and a schedule of future colloquia are available on
the Worldwide Web; see http://www.bgsu.edu/departments/math/.
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to
BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of April 28 - May 2

Tuesday, April 29

2:30 PM STATISTICS SEMINAR - Room 459 MSC
Pranab K. Sen, Distinguished Lukacs Professor, BGSU.
"The last part of Hadamard differentiability"

3:30 PM ANALYSIS SEMINAR - Room 459 MSC
Alex Izzo, Dept. of Mathematics and Statistics, BGSU.
"A new proof of the fundamental theorem of differential equations"

Thursday, May 1

2:30 PM SCIENTIFIC COMPUTATION SEMINAR - Room 459 MSC
Panayot Vassilevski, BGSU and Bulgarian Academy of Sciences
"Some Computational Aspects of Convection-Diffusion Equations"

No colloquium this week. Next colloquium in September. Have a good summer!

Week of August 18 - 22

Tuesday, August 19

12:20 PM LUNCHEON - Room 459 MSC
Come and meet our new graduate students over lunch!
Free pizza and pop.

Thursday, August 21

6:00 PM ASOR and MATH/STAT PIZZA PARTY - Bowling Green City Park,
Masonic Stone Shelter
The Department of Applied Statistics and Operations Research
and the Department of Mathematics and Statistics are
sponsoring a pizza party for students in the MS in Applied
Statistics and MS in Computer Science / Operations Research
programs. Faculty, graduate students, and their families
are invited. Please contact Professor Jane Harvill at
372-2957 or Pat Prescott at 372-2363 (by Tuesday at 5:00 PM)
if you plan to attend.

Friday, August 22

5:00 PM MATHEMATICS AND STATISTICS DEPARTMENT PARTY
Please join us at Cyndi Patterson's house to welcome our
new graduate students. Let Cyndi know as soon as possible
if you will be able to attend. She will have directions
to her house available on Tuesday. Cyndi's place is a ways
out of town; if you need a ride or if you can drive someone
there, let Cyndi know.

Week of August 25 - 29

Monday, August 25

9:30 AM PRESIDENT'S ADDRESS - Lenhart Grand Ballroom
Refreshments at 9:00

11:00 AM ARTS and SCIENCES FACULTY MEETING - Lenhart Grand Ballroom

2:30 PM GRADUATE FACULTY MEETING - 117 Olscamp Hall

3:30 PM MATHEMATICS and STATISTICS FACULTY MEETING - Room 459 MSC

Tuesday, August 26

11:30 AM ALL-CAMPUS PICNIC - Front lawn of University Hall
-1:30 PM

Wednesday, August 27

First day of classes

Week of September 1 - 5

Wednesday, September 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

Thursday, September 4

1:30 SCIENTIFIC COMPUTING SEMINAR - Room 459 MSC
Organizational meeting to decide the regular meeting time for the
seminar and get some ideas about topics.

This fall we hope to have a strongly thematic set of meetings and
talks pertaining to numerical solution of PDE. Themes may include but
are not limited to
* mathematical properties of solutions of some PDE,
* pointwise evaluation of solution values and fluxes,
* adaptive mesh techniques,
* convergence theory,
* efficient numerical solvers
Students considering research in applied mathematics are especially
encouraged to participate, even if only unofficially.

The regular colloquium schedule will resume September 12.

Week of September 8-12

Tuesday, September 9

11:30 ALGEBRA SEMINAR - Room 447 MSC
Steve McCleary, Dept. of Mathematics and Statistics, BGSU.
"Antique totally ordered sets (a.k.a. Rusty chains)"

Wednesday, September 10

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, September 11

3:30 SCIENTIFIC COMPUTING SEMINAR - Room 459 MSC
J. Gordon Wade, Dept. of Mathematics and Statistics, BGSU.
"Some Regularity Results for Solutions of Elliptic PDE"

Friday, September 12

3:30 Coffee
3:45 COLLOQUIUM - Room 459 MSC
Alex Izzo, Dept. of Mathematics and Statistics, BGSU.
"Algebras of Holomorphic and Nonholomorphic Functions"
Abstract: The notions of Banach algebra, maximal ideal space,
and Gelfand transform will be discussed. These will be used
to present a theorem that unifies and generalizes earlier
results about algebras generated by holomorphic and harmonic
functions.

Week of September 15-19

Tuesday, September 16

11:30 ALGEBRA SEMINAR - Room 447 MSC
Steve McCleary, Dept. of Mathematics and Statistics, BGSU.
"Antique totally ordered sets"

2:30 ANALYSIS SEMINAR - Room 459 MSC
Alex Izzo, Dept. of Mathematics and Statistics, BGSU.
"Gelfand theory"

Wednesday, September 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

Thursday, September 18

3:30 SCIENTIFIC COMPUTING SEMINAR - Room 459 MSC

Friday, September 19

3:30 Coffee
3:45 COLLOQUIUM - Room 459 MSC
Gerard Letac, Toulouse, France
"Random nested tetrahedra and products of stochastic matrices"
Abstract: Choose three random points uniformly inside a triangle
to get a new one, and iterate the process: you get a sequence
of triangles which shrinks to one point, and also flatten to
one line. What are the distributions of this point and line?
These problems are typical of the study of random walks on the
semigroup of stochastic matrices. We treat several explicit
examples and give detailed proofs.

Week of September 22-26

Monday, September 22

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

Tuesday, September 23

11:30 ALGEBRA SEMINAR - Room 447 MSC
Steve McCleary, Dept. of Mathematics and Statistics, BGSU.
"Antique totally ordered sets"

2:30 ANALYSIS SEMINAR - Room 459 MSC
Alex Izzo, Dept. of Mathematics and Statistics, BGSU.
"Gelfand theory"

Wednesday, September 24

6:00 KME MOVIE - Room 459 MSC
"Math MagicLand" with Donald Duck
Pizza and beverages will be provided

Thursday, September 25

3:30 SCIENTIFIC COMPUTING SEMINAR - Room 459 MSC

Friday, September 26

3:30 Coffee
3:45 COLLOQUIUM - Room 459 MSC
Karen Parshall, University of Virginia
"Glancing Back: The Mathematics of James Joseph Sylvester"
Abstract: This talk will analyze the mathematical output and
thought processes of the nineteenth-century English
mathematician, James Joseph Sylvester. Sylvester began his
research career in the late 1830s with work on what was then
called the theory of elimination. This led him immediately to
results in the developing theory of determinants and shaped
his algebraic approach to mathematical questions. By the late
1840s and early 1850s, it had also led him---along with Arthur
Cayley---to establish and flesh out a full-blown theory of
invariants. Sylvester spent the rest of his life engaged in
the further advancement of that new area, although his work
also took him quite naturally into matrix theory as well as
into combinatorics.

Week of September 29 - October 3

Monday, September 29

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, September 30

11:30 ALGEBRA SEMINAR - Room 447 MSC
Steve McCleary, Dept. of Mathematics and Statistics, BGSU
"Antique totally ordered sets"

2:30 ANALYSIS SEMINAR - Room 459 MSC
Alex Izzo, Dept. of Mathematics and Statistics, BGSU
"Gelfand theory"

Thursday, October 2

3:30 SCIENTIFIC COMPUTING SEMINAR - Room 459 MSC
Gordon Wade, Dept. of Mathematics and Statistics, BGSU
"Some elementary quadrature and approximation properties
of orthogonal polynomials"

Friday, October 3

3:30 Coffee
3:45 COLLOQUIUM - Room 459 MSC
Tim Hsu, University of Michigan
"Coxeter's kaleidoscope; or, What is geometric group theory?"
Abstract: A Coxeter group (for the purposes of this talk) is a
discrete group generated by reflections in Euclidean n-space.
For example, the group generated by the reflections in the
sides of a square in the Euclidean plane is a Coxeter group,
as are the groups generated by the reflections in the sides of
an equilateral triangle or an isoceles right triangle.

Following Coxeter's own proof (Chapter 5 of his book Regular
Polytopes, or his paper of 1934), we show that every Coxeter
group has a presentation, or abstract definition, of the form

where the R_i correspond to the reflections in a certain
well-chosen set of generating mirrors, and \pi/m_{ij} is the
dihedral angle between mirror i and mirror j (necessarily an
integer). The main principles of this proof turn out to be
fundamental ideas in the subject known as geometric group
theory, and so we will also discuss what geometric group
theory is, with some examples of recent Coxeter-like ideas and
results. In particular, if time permits, we will mention some
of the author's recent work (joint with Dani Wise) on
non-positively curved polygons of finite groups, a natural
generalization of infinite planar Coxeter groups.

The only background needed for this talk is a first course in
group theory (for instance, as part of a larger course on
abstract algebra). Some familiarity with presentations will
be helpful, but not necessary.

BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of October 6 - 10

Monday, October 6

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, October 7

11:30 ALGEBRA SEMINAR - Room 447 MSC
Steve McCleary, Dept. of Mathematics and Statistics, BGSU
"Antique totally ordered sets"

2:30 ANALYSIS SEMINAR - Room 459 MSC
Neal Carothers, Dept. of Mathematics and Statistics, BGSU.
"C[0,1] as a universal space"

Abstract: If K is a compact metric space, we will show that
C(K), the space of continuous, real-valued functions on K, is
isometric (and algebra isomorphic) to a subspace of C[0,1],
the space of continuous, real-valued functions on [0,1]. The
proof is quite elementary and hinges on several interesting
properties of Cantor's ternary set. We will also discuss a
few variations on this theme.

Thursday, October 9

3:30 SCIENTIFIC COMPUTING SEMINAR - Room 459 MSC
Gordon Wade, Dept. of Mathematics and Statistics, BGSU
"Some elementary quadrature and approximation properties
of orthogonal polynomials"

Friday, October 10

3:30 Coffee
3:45 COLLOQUIUM - Room 459 MSC
Lev Klebanov, BGSU and St. Petersburg State University
for Architecture and Civil Engineering
"The problem of moments and computer tomography"

Abstract: In the talk will be discussed the following topics:
1) Radon transform and its applications to computer
tomography;
2) Application of the problem of moments to the inversion of
Radon transform for incomplete data and a solution of
computer tomography paradox;
3) Wigner quasi-probability distribution and computer
tomography;
4) The problem of moments for Wigner quasi-probability
distribution.

BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of October 13 - 17

Monday, October 13

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, October 14

2:30 ANALYSIS SEMINAR - Room 459 MSC
Kit Chan, Dept. of Mathematics and Statistics, BGSU.
"Generalized Backward Shifts"
Abstract: We study some recent results on a class of bounded
linear operators on a Banach space that possess important
properties of the unilateral backward shift on $\ell^2$.

3:30 FACULTY MEETING - Room 459 MSC
Discussion of promotion documents.

Thursday, October 16

3:30 SCIENTIFIC COMPUTING SEMINAR - Room 459 MSC
So-Hsiang Chou, Dept. of Mathematics and Statistics, BGSU.
"Superconvergence theory for finite element methods"

Friday, October 17

3:30 Coffee
3:45 COLLOQUIUM - Room 459 MSC
Jim Albert, Dept. of Mathematics and Statistics, BGSU.
"Bayes for Beginners?"
Abstract: The teaching of an introductory college statistics
course from a Bayesian perspective is discussed. The goals of
an elementary statistics course are discussed, and I contrast
the frequentist and Bayesian approaches to statistical
inference. Simple methods of introducing inference from a
Bayesian perspective are described. A "Bayes box" is used in
introducing inference about categorical models, and a discrete
prior is used in teaching inference about a population
proportion. I summarize pros and cons of teaching elementary
Bayesian statistics. Much of the discussion is contained in a
recent series of papers published in The American
Statistician.

BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of October 20 - 24

Monday, October 20

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, October 21

11:30 ALGEBRA SEMINAR - Room 447 MSC
Sergey Shpectorov, Dept. of Mathematics and Statistics, BGSU.

2:30 ANALYSIS SEMINAR - Room 459 MSC
Neal Carothers, Dept. of Mathematics and Statistics, BGSU.
"Injective Banach Spaces"
Abstract: After finishing up a few details from my previous
talk, I will present a proof that ell_infty and L_infty are
isomorphic as Banach spaces, but not as algebras.

Friday, October 24

No colloquium this week due to the MAA meeting.

BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of October 27 - 31

Monday, October 27

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, October 28

11:30 ALGEBRA SEMINAR - Room 447 MSC
Sergey Shpectorov, Dept. of Mathematics and Statistics, BGSU.

Wednesday, October 29

6:00 KME EVENT - Room 459 MSC
Jim Albert, Dept. of Mathematics and Statistics, BGSU.
"The Statistics of Baseball"
Pizza and pop will be provided.

Thursday, October 30

3:30 SCIENTIFIC COMPUTING SEMINAR - Room 459 MSC
TBA

Friday, October 31

3:30 Coffee
3:45 COLLOQUIUM - Room 459 MSC
Robert L. Strawderman, Dept. of Biostatistics, University of Michigan
"Approximately exact inference for the common odds ratio
in several 2 by 2 tables"
Abstract: The conditional maximum likelihood estimator of the
common odds ratio in a sequence of independent 2 by 2 tables
is known to be superior to the Mantel-Haenszel estimator in
terms of asymptotic efficiency and has the further advantage
that its exact distribution is known.

However, a long-standing barrier to the widespread use of this
estimator has been computational intractability; in
particular, the calculation of significance levels, confidence
sets, and power based on the exact distribution requires fast
and efficient algorithms. An important class of such
algorithms form the basis of StatXact (Cytel, 1992), a
software package able to solve various aspects of the exact
inference problem, including that for a sequence of several 2
by 2 tables in real time.

In this talk, we develop an alternative methodology by
establishing a useful Lugannani-Rice-type saddlepoint
approximation to the exact distribution of the conditional
maximum likelihood estimator. The approximation is derived
from an interesting representation for hypergeometric random
variables recently developed in Kou and Ying (1996a,b), and
provides fast, accurate calculations of p-values, confidence
sets and power functions. The primary computational burden is
in determining the roots of a certain well-studied polynomial,
which need be done numerically but only once for each table.
Consequently, the required computational effort is typically
minimal; for example, all of the examples were done using code
written by the authors entirely in S-plus.

Joint work with Marty Wells, Cornell University

-----------------------------------------------------------------------
This announcement and a schedule of future colloquia are available on
the Worldwide Web; see http://www.bgsu.edu/departments/math/.
If you wish to be placed on the e-mail distribution list, or have
comments or material for the calendar, send email to BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of November 3 - 7

Monday, November 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

Tuesday, November 4

11:30 ALGEBRA SEMINAR - Room 447 MSC
Sergey Shpectorov, Dept. of Mathematics and Statistics, BGSU.

2:30 ANALYSIS SEMINAR - Room 459 MSC
Neal Carothers, Dept. of Mathematics and Statistics, BGSU.
"Injective Banach lattices"
Abstract: After (once again) finishing up a few details from a
previous talk, I will present a characterization of injective
C(K) spaces in terms terms of a lattice property of C(K); or,
equivalently, in terms of a topological property of K.

Wednesday, November 5

2:30 Applied Statistics and Operations Research Guest Lecture Series
115 Olscamp Hall
Representatives of Crown, Cork, and Seal, Inc. of Perrysburg, Ohio
"Using statistics to make a can"

Thursday, November 6

3:30 SCIENTIFIC COMPUTING SEMINAR - Room 459 MSC

Friday, November 7

3:30 Coffee
3:45 COLLOQUIUM - Room 459 MSC
E. M. Carter, University of Guelph
"Multivariate Approaches to Bioassay"
Abstract: A variety of examples will be given to illustrate the
use of multivariate procedures in the analysis of bioassays.
Data can be in the form of continuous, categorical or mixed
responses, and a generalized multivariate linear model is
proposed to handle this type of data. Typical examples arise
in the areas of teratology, toxicity experiments over time
with natural mortality and immunity, and the standardization
of drugs such as insulin.

Saturday, November 8

OHIO STATISTICS CONFERENCE - Towers Inn, BGSU
See http://www.cba.bgsu.edu/asor/facstaff/jharvil/ohioconf/index.html

9:30 Registration

10:00 Roxy Peck, California Polytechnic State University
"Shakespeare, Motorcycles, Cellular Phones, and
the Homeless: Why I Love Being a Statistician!"

11:00 BREAK

Careers In Statistics

11:30 Di Michelson, Harris Semiconductor Corporation
"The Expanding Role of Statistics in the Manufacturing World
(or So You Want to be an Industrial Statistician?)"

12:00 Steve Long, Frequency Marketing, Inc.
"Consumer Research Using Statistics"

12:30 LUNCH, Towers Inn Restaurant

Wavelet Applications

2:00 Todd Ogden, University of South Carolina
"An Introduction to Wavelets"

2:45 Tony Cai, Purdue University
"Wavelets, Statistics, and Image Recovery"

3:15 BREAK

3:30 Todd Ogden, University of South Carolina
"Wavelets in Data Analysis"

BOWLING GREEN STATE UNIVERSITY
DEPARTMENT OF MATHEMATICS AND STATISTICS CALENDAR

Week of November 10 - 14

Monday, November 10

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 11

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
Craig Zirbel, Dept. of Mathematics and Statistics, BGSU.
"Statistical mechanics for ideal magnetohydrodynamics (MHD)"
Abstract: The equations of (MHD) describe the time evolution of
fluids of charged particles, such as plasmas found in fusion
reactors (tokamaks and stars). Typically, as the solution
evolves, smaller and smaller features (eddies, vortices, and
the like) develop, to the point that only a probabilistic
description will be adequate -- the solution cannot be
predicted exactly. On the other hand, in the midst of this
chaos, one often sees islands of calm, called coherent
structures. The goal is to predict the coherent structures
and describe the small-scale fluctuations one is likely to
see.

This will be an expository talk discussing a model developed
by Bruce Turkington (University of Massachusetts) and the
speaker. Topics will include:
* the equations of MHD and their integrals of motion
* the ideas behind statistical mechanics and why they don't
work here
* a lattice model for MHD using the discrete Fourier transform
* an approximation
* nice formulas involving the multidimensional Gaussian
distribution
* equations for the coherent structure and a probabilistic
description of small-scale fluctuations

Thursday, November 13

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

Friday, November 14

3:30 Coffee
3:45 COLLOQUIUM - Room 459 MSC
Neal Carothers, Dept. of Mathematics and Statistics, BGSU.
"The Century of Functional Analysis"
Abstract: In 1900, in an address before the International
Congress of Mathematicians, the great Italian analyst Vito
Volterra outlined the historical development of analysis up to
that time, and remarked that the 19th century could be called
the century of the theory of functions. In 1975, Felix
Browder suggested that it would be equally appropriate to call
the 20th century the century of functional analysis. Browder
based his proposal on strong historical evidence.

A general trend toward axiomatics and a shift toward
``abstract analysis'' at the turn of the century contributed
not only to the development of functional analysis, but also
to the development of several new areas of study. Indeed, the
early history of functional analysis has much in common with
the early histories of general topology, the theory of
abstract measure and integration (including modern
probability), and, to some extent, abstract linear algebra and
modern geometry. In this talk we offer support to Browder's
proposal by examining a few important events in the history of
the development of functional analysis and their bearing on
developments in other fields.

Saturday, November 15

6:30 KME HOCKEY NIGHT - Ice Arena
Join the math club to watch BGSU play Ohio State.
Meet inside the doors of the lobby of the ice arena.
Bring your ID.

Weekly Calendar

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Weekly Calendar of Seminars, Talks, and Events

Department of Mathematics & Statistics Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University

Department of Mathematics & Statistics
Bowling Green State University