-pseudo-Kac systems and duality for coactions of concrete Hopf -bimodules
arXiv:0709.4617
Abstract
We study coactions of concrete Hopf -bimodules in the framework of (weak) -pseudo-Kac systems, define reduced crossed products and dual coactions, and prove an analogue of Baaj-Skandalis duality.
22 pages; definition of a coaction extended/corrected