2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/104736Let $G$ 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 $Λ$ of the cotangent bundle of $\bar{G}$ such that the singular support of any character sheaf on $\bar{G}$ is contained in $Λ$.8 pagesRepresentation Theory20G99text