English

Whittaker Modules for W type Cartan Lie superalgebras

Representation Theory 2025-11-25 v1

Abstract

We consider the category of Whittaker modules for the Lie superalgebra Wm,nW_{m,n} of vector fields on C(mn)\mathbb{C}^{(m|n)}. For any aCm\mathbf{a}\in \mathbb{C}^m we show the equivalence between the blocks ΩaW~m,n\Omega_{\mathbf a}^{\widetilde{W}_{m,n}} of the category of (AW)m,n(AW)_{m,n}-Whittaker modules with finite-dimensional Whittaker vector spaces and the category of finite-dimensional modules over certain Lie subsuperalgebra Tm,nT_{m,n} of (AW)m,n(AW)_{m,n} (and also of gl(m,n))\mathfrak{gl}{(m,n)}). Then we apply the covering technique to study Whittaker Wm,nW_{m,n}-modules and describe simple modules in the category ΩaWm,n\Omega_{\mathbf a}^{{W}_{m,n}} of such modules with finite-dimensional Whittaker vector spaces and with non-singular a{\mathbf a}.

Keywords

Cite

@article{arxiv.2511.17995,
  title  = {Whittaker Modules for W type Cartan Lie superalgebras},
  author = {Vyacheslav Futorny and Santanu Tantubay},
  journal= {arXiv preprint arXiv:2511.17995},
  year   = {2025}
}