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math.QA2006★ 53 cited
On the Gauge Equivalence of Twisted Quantum Doubles of Elementary Abelian and Extra-Special 2-Groups
Christopher Goff, Geoffrey Mason, Siu-Hung Ng
We establish braided tensor equivalences among module categories over the twisted quantum double of a finite group defined by an extension of a group H by an abelian group, with 3-…
math.QA2006
Frobenius-Schur Indicators and Exponents of Spherical Categories
Siu-Hung Ng, Peter Schauenburg
We obtain two formulae for the higher Frobenius-Schur indicators: one for a spherical fusion category in terms of the twist of its center and the other one for a modular tensor cat…