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Semisimple conjugacy classes and classes in the Weyl group
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UNSPECIFIED (2003) Semisimple conjugacy classes and classes in the Weyl group. JOURNAL OF ALGEBRA, 260 (1). pp. 99-110. ISSN 0021-8693
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Official URL: http://dx.doi.org/10.1016/S0021-8693(02)00628-2
Abstract
We discuss a map theta from the semisimple conjugacy classes of a finite group G(F) of Lie type to the F-conjugacy classes of its Weyl group. We obtain two expressions for the number of semisimple classes mapped by theta into a given F-conjugacy class of W. The first involves distinguished coset representatives in the affine Weyl group and the second is the number of elements in the coroot lattice satisfying certain conditions. The Brauer complex plays a key role in the proof. The map theta has recently proved of interest in connection with probabilistic and combinatorial group theory. (C) 2003 Elsevier Science (USA). All rights reserved.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QA Mathematics |
| Journal or Publication Title: | JOURNAL OF ALGEBRA |
| Publisher: | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| ISSN: | 0021-8693 |
| Date: | 1 February 2003 |
| Volume: | 260 |
| Number: | 1 |
| Number of Pages: | 12 |
| Page Range: | pp. 99-110 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/9899 |
Data sourced from Thomson Reuters' Web of Knowledge
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