English

Restrictions on local embeddability into finite semigroups

Group Theory 2023-10-09 v1

Abstract

In this paper the concept of local embeddability into finite structures (being LEF) for the class of semigroups is expanded with investigations of non-LEF structures, a closely related generalising property of local wrapping of finite structures (being LWF) and inverse semigroups. The established results include a description of a family of non-LEF semigroups unifying the bicyclic monoid and Baumslag--Solitar groups and establishing that inverse LWF semigroups with finite number of idempotents are LEF.

Keywords

Cite

@article{arxiv.2310.04235,
  title  = {Restrictions on local embeddability into finite semigroups},
  author = {Dmitry Kudryavtsev},
  journal= {arXiv preprint arXiv:2310.04235},
  year   = {2023}
}

Comments

19 pages

R2 v1 2026-06-28T12:42:34.058Z