Module categories over equivariantized tensor categories

preprint2014arXivOpen access

Abstract

For a finite tensor category C\mathcal C and a Hopf monad T:C→CT:\mathcal C\to \mathcal C satisfying certain conditions we describe exact indecomposable left CT\mathcal C^T-module categories in terms of left C\mathcal C-module categories and some extra data. We also give a 2-categorical interpretation of the process of equivariantization of module categories.

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