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Bounds for Hochschild cohomology of block algebras

Kessar, R. & Linckelmann, M. (2011). Bounds for Hochschild cohomology of block algebras. Journal of Algebra, 337(1), pp. 318-322. doi: 10.1016/j.jalgebra.2011.03.009

Abstract

We show that for any block algebra B of a finite group over an algebraically closed field of prime characteristic the dimension of HH^n(B) is bounded by a function depending only on the nonnegative integer n and the defect of B. The proof uses in particular a theorem of Brauer and Feit which implies the result for n=0.

Publication Type: Article
Additional Information: 6 pages
Subjects: Q Science > QA Mathematics
Departments: School of Science & Technology > Mathematics
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