English

On dominance and minuscule Weyl group elements

Representation Theory 2009-08-10 v1 Combinatorics

Abstract

Fix a Dynkin diagram and let p be a coweight. When does there exist an element w of the corresponding Weyl group such that w is p-minuscule and w(p) is dominant? We answer this question for general Coxeter groups. We express and prove these results using a variant of Mozes's game of numbers.

Keywords

Cite

@article{arxiv.0908.1091,
  title  = {On dominance and minuscule Weyl group elements},
  author = {Qëndrim R. Gashi and Travis Schedler},
  journal= {arXiv preprint arXiv:0908.1091},
  year   = {2009}
}

Comments

12 pages

R2 v1 2026-06-21T13:33:31.642Z