Semiring identities in the semigroup $B_2$

Fuente: arXiv
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Main Author: Shaprynskiǐ, Vyacheslav Yu.
Format: Preprint
Published: 2026
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author Shaprynskiǐ, Vyacheslav Yu.
author_facet Shaprynskiǐ, Vyacheslav Yu.
contents The 5-element Brandt semigroup $B_2$ admits the structure of a naturally semilattice-ordered inverse semigroup, thus becoming an additively idempotent semiring with the operation of taking greatest lower bounds as the semiring addition. For this semiring we present a finite basis of identities and thus, by the previous results, complete the solution of Finite Basis Problem for combinatorial naturally semilattice-ordered inverse semigroups.
format Preprint
id arxiv_https___arxiv_org_abs_2604_01706
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Semiring identities in the semigroup $B_2$
Shaprynskiǐ, Vyacheslav Yu.
Group Theory
08B05, 16Y60, 20M18
The 5-element Brandt semigroup $B_2$ admits the structure of a naturally semilattice-ordered inverse semigroup, thus becoming an additively idempotent semiring with the operation of taking greatest lower bounds as the semiring addition. For this semiring we present a finite basis of identities and thus, by the previous results, complete the solution of Finite Basis Problem for combinatorial naturally semilattice-ordered inverse semigroups.
title Semiring identities in the semigroup $B_2$
topic Group Theory
08B05, 16Y60, 20M18
url https://arxiv.org/abs/2604.01706