English

Quiver mutations and Boolean reflection monoids

Rings and Algebras 2019-11-11 v7 Combinatorics Group Theory

Abstract

In 2010, Everitt and Fountain introduced the concept of reflection monoids. The Boolean reflection monoids form a family of reflection monoids (symmetric inverse semigroups are Boolean reflection monoids of type AA). In this paper, we give a family of presentations of Boolean reflection monoids and show how these presentations are compatible with quiver mutations of orientations of Dynkin diagrams with frozen vertices. Our results recover the presentations of Boolean reflection monoids given by Everitt and Fountain and the presentations of symmetric inverse semigroups given by Popova respectively. Surprisingly, inner by diagram automorphisms of irreducible Weyl groups and Boolean reflection monoids can be constructed by sequences of mutations preserving the same underlying diagrams. Besides, we show that semigroup algebras of Boolean reflection monoids are cellular algebras.

Keywords

Cite

@article{arxiv.1711.09995,
  title  = {Quiver mutations and Boolean reflection monoids},
  author = {Bing Duan and Jian-Rong Li and Yan-Feng Luo},
  journal= {arXiv preprint arXiv:1711.09995},
  year   = {2019}
}

Comments

33 pages, final version, to appear in Journal of Algebra

R2 v1 2026-06-22T22:58:39.098Z