On the Cohomology Comparison Theorem

Details On the Cohomology Comparison Theorem On the Cohomology Comparison Theorem

2010-10-22

arxiv.org/abs/1010.4819v2

Mathematics

Category Theory

Scientific paper

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 $Special$ $ Cohomology$ $Comparison$ $Theorem$ of M. Gerstenhaber and S. D. Schack.

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