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arXiv 1509.05855math.QAmath.RT
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一般线性李代数与分圆壁Brauer代数的混合Schur-Weyl对偶

Mixed Schur-Weyl duality between general linear Lie algebras and cyclotomic walled Brauer algebras

Hebing Rui, Linliang Song

摘要:

受Brundan-Kleshchev关于高阶Schur-Weyl对偶的工作的启发,我们建立了一般线性李代数与分圆壁Brauer代数在任意水平上的混合Schur-Weyl对偶.利用分圆壁Brauer代数的弱胞腔基,对一般线性李代数的某些混合张量模的最高权向量进行了分类。这导致了一个有效的方法来计算由混合Schur-Weyl对偶引起的分圆壁Brauer代数的分解矩阵,推广了早期的结果水平二壁Brauer代数。

英文摘要:

Motivated by Brundan-Kleshchev's work on higher Schur-Weyl duality, we establish mixed Schur-Weyl duality between general linear Lie algebras and cyclotomic walled Brauer algebras in an arbitrary level. Using weakly cellular bases of cyclotomic walled Brauer algebras, we classify highest weight vectors of certain mixed tensor modules of general linear Lie algebras. This leads to an efficient way to compute decomposition matrices of cyclotomic walled Brauer algebras arising from mixed Schur-Weyl duality, which generalizes early results on level two walled Brauer algebras.

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