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Online veröffentlicht: 21. Mai 2013
Seitenbereich: 111 - 130
DOI: https://doi.org/10.2478/v10309-012-0059-7
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We continue the investigation of H-Galois extensions of linear categories, where H is a Hopf algebra. In our main result, the Theorem 2.2, we characterize this class of extensions in the case when H is finite dimensional. As an application, we prove a version of the Duality Theorem for crossed products with invertible cocycle.