Uniqueness of pairings in Hopf-cyclic cohomology

Abstract

We show that all pairings defined in the literature extending Connes-Moscovici characteristic map in Hopf-cyclic cohomology are isomorphic as natural transformations of derived double functors.

16 pages; Section 3 is re-written

References in corpus (3)

• Bivariant Hopf cyclic cohomology
• Pairings in Hopf-cyclic cohomology of algebras and coalgebras with coefficients
• Cup products in Hopf cyclic cohomology via cyclic modules I