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.


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