%0 Journal Article %T Unipotent classes and special Weyl group representations %A G. Lusztig %J Mathematics %D 2007 %I arXiv %X We show that various invariants of a unipotent conjugacy class in a connected semisimple group can be recovered purely in terms of data involving the Weyl group. %U http://arxiv.org/abs/0711.4287v1