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Graph representatives for surface maps

Published online by Cambridge University Press:  17 April 2007

MICHAEL R. KELLY
Affiliation:
Department of Mathematics and Computer Science, Loyola University, 6363 St. Charles Avenue, New Orleans, LA 70118, USA (e-mail: kelly@loyno.edu)

Abstract

Given a compact surface $F$ with non-empty boundary and a homotopy class of self-maps on $F$, we consider the problem of finding a representative which carries the minimal number of fixed points possible for the class. When $F$ is either the pants surface or the once punctured Möbius band this problem is solved by a graph map, where the graph is homotopy equivalent to $F$. A partial result is presented for the remaining two surfaces whose fundamental group is the free group on two generators.

Type
Research Article
Copyright
2007 Cambridge University Press

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