On Decomposition Numbers and Branching Coefficients for Symmetric and Special Linear Groups

On Decomposition Numbers and Branching Coefficients for Symmetric and Special Linear Groups
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关于对称特殊线性群的分解数和分支系数

DOI:
10.1112/s0024611597000427
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发表时间:
1997
影响因子:
1.8
通讯作者:
A. Kleshchev
A. Kleshchev
中科院分区:
数学1区
文献类型:
--
作者:
A. Kleshchev

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在本文中,我们找到了重数dim L(λ)λ−α,其中α是任意根,L(λ)是具有最高权λ的不可约SLn-模。我们给出了相应权空间的不同基,并概述了对称群的一些应用。特别是,我们描述了某些组合物的多重性的模块化分支规则。1991年数学学科分类:20 C 05、20 G 05。
In this paper we find the multiplicities dim L(λ)λ−α where α is an arbitrary root and L(λ) is an irreducible SLn‐module with highest weight λ. We provide different bases of the corresponding weight spaces and outline some applications to the symmetric groups. In particular we describe certain composition multiplicities in the modular branching rule. 1991 Mathematics Subject Classification: 20C05, 20G05.