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arXiv · 2207.06178

Cells in modified $\imath$quantum groups of type AIII and related Schur algebras

Weideng Cui
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Abstract

We provide a combinatorial characterization of two-sided cells in modified $\imath$quantum groups of type AIII. Our approach is to lift a corresponding description of two-sided cells in $\jmath$-Schur algebras associated to Iwahori--Hecke algebras of type $B$. We further give a combinatorial description of two-sided cells in other two kinds of Schur-type algebras, namely $\imath$-Schur algebras and $\tilde{\imath}$-Schur algebras.

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Weideng Cui. 2022-07-13. Cells in modified $\imath$quantum groups of type AIII and related Schur algebras. https://arxiv.org/abs/2207.06178

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