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Integer-valued fixed point index for compositions of acyclic maps

E. G. Sklyarenko, G. Skordev

math.GNarXiv:math/0610831

Abstract

An integer-valued fixed point index for compositions of acyclic multivalued maps is constructed. This integer-valued fixed point index has the properties: additivity, homotoy invariance, normalization, commutativity, multiplicativity. The acyclicity is with respect to the Cech cohomology with integer coefficients. The technique of chain approximation is used.

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