Simple character formulas for finite $W$-superalgebras of type $A$

Shun-Jen Cheng; Weiqiang Wang

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arXiv · 2603.01373

Simple character formulas for finite $W$-superalgebras of type $A$

Shun-Jen Cheng·Weiqiang Wang

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Abstract

We establish a canonical basis character formula for the irreducible modules in arbitrary parabolic BGG-type categories, including the category of finite-dimensional modules, for finite $W$-superalgebras of type $A$. These categories categorify the tensor product modules of irreducible polynomial representations and their duals over a quantum group of type $A$. Moreover, the standard modules and irreducible modules in these categories categorify the standard basis and Lusztig's dual canonical basis in the tensor product modules. Our formula provides a uniform generalization of several character formulas in BGG categories for Lie superalgebras and for $W$-algebras of type $A$.

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BibTeX RIS

Shun-Jen Cheng, Weiqiang Wang. 2026-03-02. Simple character formulas for finite $W$-superalgebras of type $A$. https://arxiv.org/abs/2603.01373

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