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Cup Products in Hopf-Cyclic Cohomology

Masoud Khalkhali·Bahram Rangipour
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Abstract

We construct cup products of two different kinds for Hopf-cyclic cohomology. When the Hopf algebra reduces to the ground field our first cup product reduces to Connes' cup product in ordinary cyclic cohomology. The second cup product generalizes Connes-Moscovici's characteristic map for actions of Hopf algebras on algebras.

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BibTeXRIS

Masoud Khalkhali, Bahram Rangipour. 2004-10-30. Cup Products in Hopf-Cyclic Cohomology. https://arxiv.org/abs/math/0411003

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