English

Affine Lie algebras representations induced from Whittaker modules

Representation Theory 2022-06-14 v3

Abstract

We use induction from parabolic subalgebras with infinite-dimensional Levi factor to construct new families of irreducible representations for arbitrary Affine Kac-Moody algebra. Our first construction defines a functor from the category of Whittaker modules over the Levi factor of a parabolic subalgebra to the category of modules over the Affine Lie algebra. The second functor sends tensor products of a module over the affine part of the Levi factor (in particular any weight module) and of a Whittaker module over the complement Heisenberg subalgebra to the Affine Lie algebra modules. Both functors preserves irreducibility when the central charge is nonzero.

Keywords

Cite

@article{arxiv.2203.13033,
  title  = {Affine Lie algebras representations induced from Whittaker modules},
  author = {Maria Clara Cardoso and Vyacheslav Futorny},
  journal= {arXiv preprint arXiv:2203.13033},
  year   = {2022}
}
R2 v1 2026-06-24T10:24:36.602Z