English

Modular elements in the lattice of monoid varieties

Group Theory 2026-01-13 v1

Abstract

An element xx of a lattice LL is modular if LL has no five-element sublattice isomorphic to the pentagon in which xx would correspond to the lonely midpoint. In the present work, we classify all modular elements of the lattice of all monoid varieties.

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Cite

@article{arxiv.2511.06358,
  title  = {Modular elements in the lattice of monoid varieties},
  author = {Sergey V. Gusev},
  journal= {arXiv preprint arXiv:2511.06358},
  year   = {2026}
}

Comments

9 pages

R2 v1 2026-07-01T07:28:16.502Z