pith. sign in

arxiv: math/0512040 · v1 · pith:K36ZKE26new · submitted 2005-12-01 · 🧮 math.KT · math-ph· math.MP

A pairing between super Lie-Rinehart and periodic cyclic homology

classification 🧮 math.KT math-phmath.MP
keywords pairingcyclicformulahomologycohomologyhomologicallie-rinehartperiodic
0
0 comments X
read the original abstract

We consider a pairing producing various cyclic Hochschild cocycles, which led Alain Connes to cyclic cohomology. We are interested in geometrical meaning and homological properties of this pairing. We define a non-trivial pairing between the homology of a Lie-Rinehart (super-)algebra with coefficients in some partial traces and relative periodic cyclic homology. This pairing generalizes the index formula for summable Fredholm modules, the Connes-Kubo formula for the Hall conductivity and the formula computing the K0-group of a smooth noncommutative torus. It also produces new homological invariants of proper maps contracting each orbit contained in a closed invariant subset in a manifold acted on smoothly by a connected Lie group. Finally we compare it with the characteristic map for the Hopf-cyclic cohomology.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.