2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/69534In this note we show that all reductive groups are clean in odd characteristic. In characteristic 2 there are two cuspidal local systems (one for $F_4$ and one for $E_8$) which can not be handled by our method.5 pagesRepresentation Theorytext