2000 character limit reached
Categorical Lagrangian Grassmannians and Brauer-Picard groups of pointed fusion categories (1309.5026v2)
Published 19 Sep 2013 in math.QA and math.CT
Abstract: We analyze the action of the Brauer-Picard group of a pointed fusion category on the set of Lagrangian subcategories of its center. Using this action we compute the Brauer-Picard groups of pointed fusion categories associated to several classical finite groups. As an application, we construct new examples of weakly group-theoretical fusion categories.