On the lattice of overcommutative varieties of monoids
Group Theory
2024-11-26 v3
Abstract
It is unknown so far, whether the lattice of all varieties of monoids satisfies some non-trivial identity. The objective of this note is to give the negative answer to this question. Namely, we prove that any finite lattice is a homomorphic image of some sublattice of the lattice of overcommutative varieties of monoids (i.e., varieties that contain the variety of all commutative monoids). This implies that the lattice of overcommutative varieties of monoids and therefore, the lattice of all varieties of monoids does not satisfy any non-trivial identity.
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Cite
@article{arxiv.1702.08749,
title = {On the lattice of overcommutative varieties of monoids},
author = {S. V. Gusev},
journal= {arXiv preprint arXiv:1702.08749},
year = {2024}
}
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5 pages