%0 Journal Article
%T $G$-algebras, group graded algebras, and Clifford extensions of blocks
%A Tiberiu Coconet
%J Mathematics
%D 2011
%I arXiv
%X Let $K$ be a normal subgroup of the finite group $H$. To a block of a $K$-interior $H$-algebra we associate a group extension, and we prove that this extension is isomorphic to an extension associated to a block given by the Brauer homomorphism. This may be regarded as a generalization and an alternative treatment of Dade's results "Block extensions" Section 12.
%U http://arxiv.org/abs/1112.0135v1