Braided Picard groups and graded extensions of braided tensor categories

Davydov, A; Nikshych, D

Nikshych, D (corresponding author), Univ New Hampshire, Dept Math & Stat, Durham, NH 03824 USA.

SELECTA MATHEMATICA-NEW SERIES, 2021; 27 (4):

Abstract

We classify various types of graded extensions of a finite braided tensor category B in terms of its 2-categorical Picard groups. In particular, we pr......

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