On indecomposable involutive solutions to the Yang-Baxter equation whose squaring map is a $p$-cycle
Abstract
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 . This line of inquiry has yielded numerous decomposability theorems based on the underlying structure of . Two seminal questions, posed by Ram\'irez 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 is a -cycle, for an arbitrary prime number . 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.
Keywords
Cite
@article{arxiv.2508.01613,
title = {On indecomposable involutive solutions to the Yang-Baxter equation whose squaring map is a $p$-cycle},
author = {Marco Castelli and Arpan Kanrar},
journal= {arXiv preprint arXiv:2508.01613},
year = {2025}
}
Comments
9 pages + References, Comments eelcome!