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Zapiski Nauchnykh Seminarov POMI, 2002, Volume 289, Pages 277–286
(Mi znsl1608)
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This article is cited in 4 scientific papers (total in 4 papers)
On the sum of roots of a closed set
E. A. Sopkina Saint-Petersburg State University
Abstract:
The invariant of closed set which is equal to the sum of roots is introduced. For a closed subset in the root system we describe symmetric and special parts, and its stabilizer in the Weyl group by means of the sum of roots. We define associated bases with respect to which the closed set has the simplest form. All possible values of root sum are determined.
Received: 18.04.2002
Citation:
E. A. Sopkina, “On the sum of roots of a closed set”, Problems in the theory of representations of algebras and groups. Part 9, Zap. Nauchn. Sem. POMI, 289, POMI, St. Petersburg, 2002, 277–286; J. Math. Sci. (N. Y.), 124:1 (2004), 4832–4836
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https://www.mathnet.ru/eng/znsl1608 https://www.mathnet.ru/eng/znsl/v289/p277
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Abstract page: | 191 | Full-text PDF : | 99 |
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