26 citations · 58 across the 19 of their papers we have counts for
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math.RA2012★ 2 cited
The Tate-Hochschild cohomology ring of a group algebra
Van C. Nguyen
We show that the Tate-Hochschild cohomology ring of a finite group algebra is isomorphic to a direct sum of the Tate cohomology rings of the centralizers of conj…
math.RA2012★ 11 cited
Tate and Tate-Hochschild Cohomology for finite dimensional Hopf Algebras
Van C. Nguyen
Let A be any finite dimensional Hopf algebra over a field k. We specify the Tate and Tate-Hochschild cohomology for A and introduce cup products that make them become graded rings.…