On the restricted projective objects in the affine category O at the critical level
arXiv:1103.1540
Abstract
This article gives both an overview and supplements the articles [AF08] and [AF09] on the critical level category O over an affine Kac-Moody algebra. In particular, we study the restricted projective objects and review the restricted reciprocity and linkage principles.
20 pages, based on a talk at the conference "Representation Theory of Algebraic Groups and Quantum Groups '10" at the University of Nagoya