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Representation Theory

Published by the American Mathematical Society, the Representation Theory (ERT) is devoted to research articles of the highest quality in all areas of pure and applied mathematics.

ISSN 1088-4165

The 2020 MCQ for Representation Theory is 0.7.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.


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

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


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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Additional Information
  • G. Lusztig
  • Affiliation: Department of Mathematics, Massachusetts of Technology, Cambridge, Massachu- setts 02139
  • MR Author ID: 117100
  • Email:
  • Received by editor(s): May 14, 2003
  • Published electronically: September 10, 2003
  • Additional Notes: This work was supported in part by the National Science Foundation
  • © Copyright 2003 American Mathematical Society
  • Journal: Represent. Theory 7 (2003), 374-403
  • MSC (2000): Primary 20G99
  • DOI:
  • MathSciNet review: 2017063