On indecomposable involutive solutions to the Yang-Baxter equation whose squaring map is a $p$-cycle

Fuente: arXiv
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Main Authors: Castelli, Marco, Kanrar, Arpan
Format: Preprint
Published: 2025
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_version_ 1866908477006282752
author Castelli, Marco
Kanrar, Arpan
author_facet Castelli, Marco
Kanrar, Arpan
contents The pioneering work of Rump, which proved Gateva-Ivanova's conjecture concerning the decomposability of square-free solutions to the Yang-Baxter equation, significantly motivated further research into the associated squaring map $T$. This line of inquiry has yielded numerous decomposability theorems based on the underlying structure of $T$. Two seminal questions, posed by Ramírez and Vendramin, ask about the existence of certain indecomposable involutive solutions whose squaring maps are transpositions or 3-cycles. In this paper, we explore this problem in a more general setting by examining the case where $T$ is a $p$-cycle, for an arbitrary prime number $p$. Our results provide negative answers to the aforementioned questions under the assumption that the solution is latin or that its size is a prime-power. As a further application, we also present some decomposability theorems for solutions whose permutation groups are nilpotent.
format Preprint
id arxiv_https___arxiv_org_abs_2508_01613
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On indecomposable involutive solutions to the Yang-Baxter equation whose squaring map is a $p$-cycle
Castelli, Marco
Kanrar, Arpan
Quantum Algebra
Group Theory
16T25, 81R50
The pioneering work of Rump, which proved Gateva-Ivanova's conjecture concerning the decomposability of square-free solutions to the Yang-Baxter equation, significantly motivated further research into the associated squaring map $T$. This line of inquiry has yielded numerous decomposability theorems based on the underlying structure of $T$. Two seminal questions, posed by Ramírez and Vendramin, ask about the existence of certain indecomposable involutive solutions whose squaring maps are transpositions or 3-cycles. In this paper, we explore this problem in a more general setting by examining the case where $T$ is a $p$-cycle, for an arbitrary prime number $p$. Our results provide negative answers to the aforementioned questions under the assumption that the solution is latin or that its size is a prime-power. As a further application, we also present some decomposability theorems for solutions whose permutation groups are nilpotent.
title On indecomposable involutive solutions to the Yang-Baxter equation whose squaring map is a $p$-cycle
topic Quantum Algebra
Group Theory
16T25, 81R50
url https://arxiv.org/abs/2508.01613