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math.RA2009
Clifford theory for cocentral extensions
S. Burciu
The classical Clifford correspondence for normal subgroups is considered in the more general setting of semisimple Hopf algebras. We prove that this correspondence still holds if t…
math.RA2006★ 1 cited
Normal Hopf subalgebras of semisimple Hopf algebras
S. Burciu
In this note the notion of kernel of a representation of a semisimple Hopf algebra is introduced. Similar properties to the kernel of a group representation are proved in some spec…
math.RA2006★ 6 cited
Hochschild cohomology of smash products and rank one Hopf algebras
S. M. Burciu, S. J. Witherspoon
We give some general results on the ring structure of Hochschild cohomology of smash products of algebras with Hopf algebras. We compute this ring structure explicitly for a large…