Whittaker Modules for W type Cartan Lie superalgebras

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Hauptverfasser: Futorny, Vyacheslav, Tantubay, Santanu
Format: Preprint
Veröffentlicht: 2025
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author Futorny, Vyacheslav
Tantubay, Santanu
author_facet Futorny, Vyacheslav
Tantubay, Santanu
contents We consider the category of Whittaker modules for the Lie superalgebra $W_{m,n}$ of vector fields on $\mathbb{C}^{(m|n)}$. For any $\mathbf{a}\in \mathbb{C}^m$ we show the equivalence between the blocks $Ω_{\mathbf a}^{\widetilde{W}_{m,n}}$ of the category of $(AW)_{m,n}$-Whittaker modules with finite-dimensional Whittaker vector spaces and the category of finite-dimensional modules over certain Lie subsuperalgebra $T_{m,n}$ of $(AW)_{m,n}$ (and also of $\mathfrak{gl}{(m,n)})$. Then we apply the covering technique to study Whittaker $W_{m,n}$-modules and describe simple modules in the category $Ω_{\mathbf a}^{{W}_{m,n}}$ of such modules with finite-dimensional Whittaker vector spaces and with non-singular ${\mathbf a}$.
format Preprint
id arxiv_https___arxiv_org_abs_2511_17995
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Whittaker Modules for W type Cartan Lie superalgebras
Futorny, Vyacheslav
Tantubay, Santanu
Representation Theory
17B10, 17B15, 17B65, 17B66, 17B68
We consider the category of Whittaker modules for the Lie superalgebra $W_{m,n}$ of vector fields on $\mathbb{C}^{(m|n)}$. For any $\mathbf{a}\in \mathbb{C}^m$ we show the equivalence between the blocks $Ω_{\mathbf a}^{\widetilde{W}_{m,n}}$ of the category of $(AW)_{m,n}$-Whittaker modules with finite-dimensional Whittaker vector spaces and the category of finite-dimensional modules over certain Lie subsuperalgebra $T_{m,n}$ of $(AW)_{m,n}$ (and also of $\mathfrak{gl}{(m,n)})$. Then we apply the covering technique to study Whittaker $W_{m,n}$-modules and describe simple modules in the category $Ω_{\mathbf a}^{{W}_{m,n}}$ of such modules with finite-dimensional Whittaker vector spaces and with non-singular ${\mathbf a}$.
title Whittaker Modules for W type Cartan Lie superalgebras
topic Representation Theory
17B10, 17B15, 17B65, 17B66, 17B68
url https://arxiv.org/abs/2511.17995