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math.RA2014★ 4 cited
On group gradings on PI-algebras
Eli Aljadeff, Ofir David
We show that there exists a constant K such that for any PI- algebra W and any nondegenerate G-grading on W where G is any group (possibly infinite), there exists an abelian subgro…
math.RA2014★ 1 cited
The center of the generic G-crossed product
Ofir David
Let G be a finite group and let F be a field of characteristic zero. In this paper we construct a generic G-crossed product over F using generic graded matrices. The center of this…