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
中科院分区:
文献类型:
--
作者:
A. Kleshchev
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.