By Vladimir Turaev and Alexis Virelizier

We study the G-centers of G-graded monoidal categories where G is an arbitrary group. We prove that for any spherical G-fusion category C over an algebraically closed field such that the dimension of the neutral component of C is non-zero, the G-center of C is a G-modular category. This generalizes... Show more

August 28, 2012

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On the graded center of graded categories

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