English

Anisimov's Theorem for inverse semigroups

Group Theory 2013-03-22 v1 Formal Languages and Automata Theory

Abstract

The idempotent problem of a finitely generated inverse semigroup is the formal language of all words over the generators representing idempotent elements. This note proves that a finitely generated inverse semigroup with regular idempotent problem is necessarily finite. This answers a question of Gilbert and Noonan Heale, and establishes a generalisation to inverse semigroups of Anisimov's Theorem for groups.

Keywords

Cite

@article{arxiv.1303.5239,
  title  = {Anisimov's Theorem for inverse semigroups},
  author = {Mark Kambites},
  journal= {arXiv preprint arXiv:1303.5239},
  year   = {2013}
}

Comments

8 pages

R2 v1 2026-06-21T23:45:48.468Z