2018/05/22 by Kodaka, Kazunori
#46L05 #FOS: Mathematics #Operator Algebras (math.OA)
paper · doi:10.48550/arxiv.1805.08358
We shall generalize the notion of the strong Morita equivalence for coactions of a finite dimensional C^*-Hopf algebra on a unital C^*-algebra and define the Picard groups with respect to the generalized strong Morita equivalence. We call them the generalized Picard groups for coactions of a finite dimensional C^*-Hopf algebra on a unital C^*-algeba. We shall investigate basic properties of the generalized Picard groups and clarify the relation between the generalized Picard groups and the Picard groups for unital inclusions of unital C^*-algebras.