English

On the Cohomology Comparison Theorem

Category Theory 2014-04-16 v4

Abstract

A relative derived category for the category of modules over a presheaf of algebras is constructed to identify the relative Yoneda and Hochschild cohomologies with its homomorphism groups. The properties of a functor between this category and the relative derived category of modules over the algebra associated to the presheaf are studied. We obtain a generalization of the SpecialSpecial Cohomology Cohomology ComparisonComparison TheoremTheorem of M. Gerstenhaber and S. D. Schack.

Keywords

Cite

@article{arxiv.1010.4819,
  title  = {On the Cohomology Comparison Theorem},
  author = {Alin Stancu},
  journal= {arXiv preprint arXiv:1010.4819},
  year   = {2014}
}

Comments

When the 3rd version was uploaded I attached the wrong file. This version corrects that mistake

R2 v1 2026-06-21T16:33:02.303Z