English

Tensor modules over the Lie algebras of divergence zero vector fields on $\mathbb{C}^n$

Representation Theory 2026-03-17 v3

Abstract

Let n2n\geq 2 be an integer, SnS_n be the Lie algebra of vector fields on Cn\mathbb{C}^n with zero divergence, and DnD_n be the Weyl algebra over the polynomial algebra An=C[t1,t2,,tn]A_n=\mathbb{C}[t_1,t_2,\cdots,t_n]. In this paper, we study the simplicity of the tensor SnS_n-module F(P,M)F(P,M), where PP is a simple DnD_n-module and MM is a simple sln\mathfrak{sl}_n-module. We obtain the necessary and sufficient conditions for F(P,M)F(P,M) to be an irreducible module, and determine all simple subquotients of F(P,M)F(P,M) when it is reducible.

Keywords

Cite

@article{arxiv.2505.05944,
  title  = {Tensor modules over the Lie algebras of divergence zero vector fields on $\mathbb{C}^n$},
  author = {Jinxin Hu and Rencai Lü},
  journal= {arXiv preprint arXiv:2505.05944},
  year   = {2026}
}
R2 v1 2026-06-28T23:27:05.862Z