منابع مشابه
Finite Generation of the Cohomology of Some Skew Group Algebras
We prove that some skew group algebras have Noetherian cohomology rings, a property inherited from their component parts. The proof is an adaptation of Evens’ proof of finite generation of group cohomology. We apply the result to a series of examples of finite dimensional Hopf algebras in positive characteristic.
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Hochschild cohomology governs deformations of algebras, and its graded Lie structure plays a vital role. We study this structure for the Hochschild cohomology of the skew group algebra formed by a finite group acting on an algebra by automorphisms. We examine the Gerstenhaber bracket with a view toward deformations and developing bracket formulas. We then focus on the linear group actions and p...
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ژورنال
عنوان ژورنال: Mathematical Notes
سال: 2020
ISSN: 0001-4346,1573-8876
DOI: 10.1134/s0001434620110206