Character sheaves on disconnected groups, I

Lusztig, G.

doi:10.1090/S1088-4165-03-00204-8

Character sheaves on disconnected groups, I
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Represent. Theory 7 (2003), 374-403 Request permission

Erratum: Represent. Theory 8 (2004), 179-179.

Abstract:

In this paper we begin the study of character sheaves on a not necessarily connected reductive algebraic group $G$. One of the themes of this paper is the construction of a decomposition of $G$ into finitely many strata and of a family of local systems on each stratum.

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