most citedOn some H-Galois objects which are distinguished by their polynomial H-identities

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math.RA2026

Graded bimodules over split group algebras: stabilizers and Peirce decompositions

Felipe de Mattos Chafik Hindi, Waldeck Schutzer

We classify, up to graded isomorphism, graded bimodules over split group algebras of finite abelian subgroups of an arbitrary group. The classification is governed by double cosets…

math.RA2026

A classification of group gradings on incidence algebras over commutative rings

Felipe de Mattos Chafik Hindi, Waldeck Schutzer

Let be a commutative ring with 1, a locally finite partially ordered set, and a group. We derive necessary and sufficient conditions for an -algebra isomorphism betw…

math.RA2022★ 1 cited

On some H-Galois objects which are distinguished by their polynomial H-identities

Waldeck Schützer, Abel Gomes de Oliveira

When k is an algebraically closed field of characteristic 0 and H is a non-semisimple monomial Hopf algebra, we show that all Galois objects over H are determined up to H-comodule…