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A bound on the fixed-point index for surface mappings
Published online by Cambridge University Press: 01 December 1997
Abstract
In this paper we consider the class of surface mappings consisting of those maps which have the least number of fixed points possible among all maps in their homotopy class. When the surface has non-empty boundary, we show that for mappings in this class the index of a fixed point is bounded above by $1$ and below by $2\chi -1$. This generalizes a well known result for pseudo-Anosov homeomorphisms. A proof of a Jiang–Guo type inequality is also given.
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- 1997 Cambridge University Press
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