Equivariant Brauer groups and Galois deformations 2 (R-2836)

We study the Brauer group of some concrete monoidal categories, with emphasis on the equivariant Brauer group of a triangular pointed Hopf algebra, the Brauer group of differential graded algebras, and the Brauer group of a coquasitriangular dual pointed Hopf algebra. We will study the groupoid of biGalois objects over a Hopf algebra. We will introduce a categorical version of the Clifford functor and the Brauer-Wall group.

Keywords:Equivariant Brauer groups, Galois deformations 2

Disciplines:Mathematical sciences and statistics