English

Analytic Hochschild-Kostant-Rosenberg Theorem

Algebraic Geometry 2021-11-08 v1 Category Theory K-Theory and Homology Number Theory

Abstract

Let RR be a Banach ring. We prove that the category of chain complexes of complete bornological RR-modules (and several related categories) is a derived algebraic context in the sense of Raksit. We then use the framework of derived algebra to prove a version of the Hochschild-Kostant-Rosenberg Theorem, which relates the circle action on the Hochschild algebra to the de Rham-differential-enriched-de Rham algebra of a simplicial, commutative, complete bornological algebra. This has a geometric interpretation in the language of derived analytic geometry, namely, the derived loop stack of a derived analytic stack is equivalent to the shifted tangent stack. Using this geometric interpretation we extend our results to derived schemes.

Keywords

Cite

@article{arxiv.2111.03502,
  title  = {Analytic Hochschild-Kostant-Rosenberg Theorem},
  author = {Jack Kelly and Kobi Kremnizer and Devarshi Mukherjee},
  journal= {arXiv preprint arXiv:2111.03502},
  year   = {2021}
}
R2 v1 2026-06-24T07:27:49.767Z