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Journal of the American Mathematical Society
Journal of the American Mathematical Society
ISSN 1088-6834(online) ISSN 0894-0347(print)

 

On the restriction of Deligne-Lusztig characters


Author: Mark Reeder
Journal: J. Amer. Math. Soc. 20 (2007), 573-602
MSC (2000): Primary 20C33
Published electronically: July 14, 2006
MathSciNet review: 2276780
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Abstract: We study the multiplicities of Deligne-Lusztig characters upon restriction from a finite reductive group to a finite reductive subgroup. The result is a qualitative formula for the growth of multiplicities in terms of complexity. For restrictions from $ SO_{2n+1}$ to $ SO_{2n}$ we get exact multiplicities.


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Additional Information

Mark Reeder
Affiliation: Department of Mathematics, Boston College, Chestnut Hill, Massachusetts 02467
Email: reederma@bc.edu

DOI: http://dx.doi.org/10.1090/S0894-0347-06-00540-6
PII: S 0894-0347(06)00540-6
Received by editor(s): June 17, 2005
Published electronically: July 14, 2006
Additional Notes: The author was supported by NSF grant DMS-0207231
Article copyright: © Copyright 2006 American Mathematical Society
The copyright for this article reverts to public domain 28 years after publication.