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Main Authors: Han, Bin Bin, Zhang, Wen Ting, Luo, Yan Feng
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2603.17473
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author Han, Bin Bin
Zhang, Wen Ting
Luo, Yan Feng
author_facet Han, Bin Bin
Zhang, Wen Ting
Luo, Yan Feng
contents Let $\mathsf{mSt}_n$ be the plactic-like monoid obtained by factoring the free monoid over a finite alphabet $\mathcal{A}_n$ by the meet of the stalactic congruence and its dual. In this paper, we prove that $\mathsf{mSt}_n$ can be equipped with multiple involutions, and divide these involutions into $\lfloor\frac{n}{2}\rfloor+1$ types. A faithful representation of $\mathsf{mSt}_n$ under each of these involutions is obtained. We give transparent combinatorial characterizations of identities for $\mathsf{mSt}_n$ under each involution, and so the finite basis problem and identity checking problem for them are solved.
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id arxiv_https___arxiv_org_abs_2603_17473
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Representations and identities of involution Plactic-like monoids arising from the meet of the stalactic congruence and its dual
Han, Bin Bin
Zhang, Wen Ting
Luo, Yan Feng
Group Theory
Let $\mathsf{mSt}_n$ be the plactic-like monoid obtained by factoring the free monoid over a finite alphabet $\mathcal{A}_n$ by the meet of the stalactic congruence and its dual. In this paper, we prove that $\mathsf{mSt}_n$ can be equipped with multiple involutions, and divide these involutions into $\lfloor\frac{n}{2}\rfloor+1$ types. A faithful representation of $\mathsf{mSt}_n$ under each of these involutions is obtained. We give transparent combinatorial characterizations of identities for $\mathsf{mSt}_n$ under each involution, and so the finite basis problem and identity checking problem for them are solved.
title Representations and identities of involution Plactic-like monoids arising from the meet of the stalactic congruence and its dual
topic Group Theory
url https://arxiv.org/abs/2603.17473