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Fixed points and graph images for minimal maps on the once punctured torus
Authors:Michael R. Kelly
Affiliation:Department of Mathematical Sciences, Loyola University, 6363 St Charles Avenue, New Orleans, LA 70118, USA
Abstract:A fixed point detection theorem for a family of maps defined on the once punctured torus is proved. As a consequence, we produce an example of a homotopy class [f] of self-maps on the once punctured torus that illustrates the following: (i) there is a map in the homotopy class that has no fixed points, and (ii) if the image of f lies in a 1-complex that embeds as a homotopy equivalence, then f must have a fixed point.
Keywords:Fixed point   Homotopy equivalence   Graph
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