English

Shapovalov Elements For $U_q(\mathfrak{sl}(N+1))

Representation Theory 2022-08-12 v1

Abstract

For a simple Lie algebra, Shapovalov elements give rise to highest weight vectors in Verma modules. The usual construction of these elements uses induction on the length of a certain Weyl group element. If g=sl(N+1)\mathfrak{g}= \mathfrak{sl}(N+1) explicit expressions for Shapovalov elements were given in [Mus22a]. Here we adapt the argument to the quantized enveloping algebra of g\mathfrak{g}.

Keywords

Cite

@article{arxiv.2208.05831,
  title  = {Shapovalov Elements For $U_q(\mathfrak{sl}(N+1))},
  author = {Stefan Catoiu and Ian M. Musson},
  journal= {arXiv preprint arXiv:2208.05831},
  year   = {2022}
}

Comments

20 pages

R2 v1 2026-06-25T01:38:48.284Z