2 papers
math.RT2009
Fusion rings arising from normal Hopf subalgebras
Sebastian Burciu, Vicentiu Pasol
For any normal commutative Hopf subalgebra of a semisimple Hopf algebra we describe the ring inside obtained by the restriction of -modules. If this ring d…
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…