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.

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