Article Type

Research Article

Publication Title

Letters in Mathematical Physics

Abstract

We give a description of cyclic cohomology and its pairing with K-groups for 2-cocycle deformation of algebras graded over discrete groups. The proof relies on a realization of monodromy for the Gauss–Manin connection on periodic cyclic cohomology in terms of the cup product action of group cohomology.

First Page

1625

Last Page

1664

DOI

10.1007/s11005-018-01147-7

Publication Date

7-1-2019

Comments

Open Access, Green

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