%0 Journal Article
%T Singular supports for character sheaves on a group compactification
%A Xuhua He
%A George Lusztig
%J Mathematics
%D 2005
%I arXiv
%X Let $G$ be a semisimple adjoint group over $\bold C$ and $\bar{G}$ be the De Concini-Procesi completion of $G$. In this paper, we define a Lagrangian subvariety $\Lambda$ of the cotangent bundle of $\bar{G}$ such that the singular support of any character sheaf on $\bar{G}$ is contained in $\Lambda$.
%U http://arxiv.org/abs/math/0511050v1