Strictification of weakly equivariant Hopf algebras

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Erscheinungsjahr:
2013
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Beschreibung:
  • A weakly equivariant Hopf algebra is a Hopf algebra A with an action of a finite group G up to inner automorphisms of A. We show that each weakly equivariant Hopf algebra can be replaced by a Morita equivalent algebra Astr with a strict action of G and with a coalgebra structure that leads to a tensor equivalent representation category. However, the coproduct of this strictification cannot, in general, be chosen to be unital, so that a strictification of the G-action can only be found on a \emph{weak} Hopf algebra Astr.
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  • info:eu-repo/semantics/restrictedAccess
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Forschungsinformationssystem der UHH

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oai:www.edit.fis.uni-hamburg.de:publications/2c546b6d-57c1-4f4a-bc34-4939f64454ad