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arXiv · 2211.03996

Algebra cochains, the bivariant JLO cocycle and the Mathai-Quillen form

Rudy Rodsphon
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Abstract

This is a first investigation by the author of the similarity between Quillen's superconnection formalism, his constructions of (periodic) cyclic cocycles via algebra cochains on a bar construction, and Kasparov bimodules for KK-theory. In this article, we do so by deriving a slight extension of the Mathai-Quillen Thom form via a bivariant JLO cocycle. The main idea (which is in fact not really new) is that KK-cycles should be thought of as superconnection forms; these methods will be applied to other contexts elsewhere.

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Rudy Rodsphon. 2022-11-08. Algebra cochains, the bivariant JLO cocycle and the Mathai-Quillen form. https://arxiv.org/abs/2211.03996

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