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Flagged Littlewood-Richardson tableaux and branching rule for classical groups
Journal of Combinatorial Theory Series A ( IF 1.1 ) Pub Date : 2021-02-09 , DOI: 10.1016/j.jcta.2021.105419
Il-Seung Jang , Jae-Hoon Kwon

We give a new formula for the branching rule from GLn to On generalizing the Littlewood's restriction formula. The formula is given in terms of Littlewood-Richardson tableaux with certain flag conditions which vanish in a stable range. As an application, we give a combinatorial formula for the Lusztig t-weight multiplicity Kμ0(t) of type Bn and Dn with highest weight μ and weight 0.



中文翻译:

带标记的Littlewood-Richardson表格和古典组的分支规则

我们为分支规则提供了一个新公式 GLñØñ推广Littlewood的约束公式。该公式是根据Littlewood-Richardson tableaux给出的,带有某些标志条件,这些标志在稳定范围内消失。作为应用,我们给出Lusztig t权重多重性的组合公式ķμ0Ť 类型的 ñdñ权重μ最高且权重0。

更新日期:2021-02-09
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