TETRAHEDRAL GEOMETRY/TOPOLOGY SEMINAR

November 7, 2008, 4:30 p.m.


Chris Staecker, Messiah College

“ Nielsen fixed point and related theories ”

ABSTRACT: Nielsen fixed point theory is the study of the minimization of the fixed point set of a mapping when the mapping is changed by a homotopy. Basic techniques were developed by Nielsen and Reidemeister, and arose in many cases from a search for a converse to the Lefschetz fixed point theorem (is there a numerical invariant which is zero if and only if the mapping is homotopic to a fixed point free map?). We will discuss the foundations of the theory, as well as areas of current interest. We will also mention some closely related Nielsen-type theories outside of fixed point theory.

 

2008/2009 Speakers

September 12 : Matthew Miller, Bucknell University

October 17 : David Lyons, Lebanon Valley College

November 7 : Christopher Staecker, Messiah College

December 5 : James Hughes, Elizabethtown College

February 6 : Ralph Gomez, Swarthmore College

March 6 : Sam Smith, St. Joseph's University

April 3 : William Kronholm, Swarthmore College

May 1 : Satyan Devadoss, Williams College

 

Seminar meetings occur at 4:30 p.m. (typically) on the first Friday of each month in room 213 of the Hempfield High School Math Department

Directions to Hempfield High School

Abstract archive

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