Rock blocks
Representation Theory
2007-10-30 v1
Abstract
Consider representation theory associated to symmetric groups, or to Hecke algebras in type A, or to q-Schur algebras, or to finite general linear groups in non-describing characteristic. Rock blocks are certain combinatorially defined blocks appearing in such a representation theory, first observed by R. Rouquier. Rock blocks are much more symmetric than general blocks, and every block is derived equivalent to a Rock block. Motivated by a theorem of J. Chuang and R. Kessar in the case of symmetric group blocks of abelian defect, we pursue a structure theorem for these blocks.
Cite
@article{arxiv.0710.5462,
title = {Rock blocks},
author = {W. Turner},
journal= {arXiv preprint arXiv:0710.5462},
year = {2007}
}