Minimal homeomorphisms and topological KK-theory

preprint2022arXivOpen access

Abstract

The Lefschetz fixed point theorem provides a powerful obstruction to the existence of minimal homeomorphisms on well-behaved spaces such as finite CW-complexes. We show that these obstructions do not hold for more general spaces. More precisely, minimal homeomorphisms are constructed on space with prescribed KK-theory or cohomology. We also allow for some control of the map on KK-theory and cohomology induced from these minimal homeomorphisms. This allows for the construction of many minimal homeomorphisms that are not homotopic to the identity. Applications to C∗C^*-algebras will be discussed in another paper.

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