Hochschild cohomology rings of d -Koszul algebras

In this paper we determine the multiplicative structure of Hochschild cohomology rings of d -Koszul algebras with the Yoneda products based on an explicit construction of a chain map Δ : P → P ⊗ A P lifting the identity with P a minimal projective bimodule resolution of a d -Koszul algebra A .

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Bibliographic Details
Published inJournal of pure and applied algebra Vol. 215; no. 1; pp. 1 - 12
Main Authors Xu, Yunge, Xiang, Huali
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2011
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Summary:In this paper we determine the multiplicative structure of Hochschild cohomology rings of d -Koszul algebras with the Yoneda products based on an explicit construction of a chain map Δ : P → P ⊗ A P lifting the identity with P a minimal projective bimodule resolution of a d -Koszul algebra A .
ISSN:0022-4049
1873-1376
DOI:10.1016/j.jpaa.2009.12.027