Indecomposable solutions with permutation brace of size $p^3$ and permutation braces of small sizes

Abstract

Using the construction of Bachiller, Cedó and Jespers, we give a complete classification of the indecomposable involutive set-theoretic solutions to the Yang-Baxter equation whose permutation brace has size $p^3$, where p is an odd prime. We also give an algorithm for systematically producing all indecomposable involutive solutions with a given permutation brace, and use this to enumerate these with the permutation brace of size up to 107.

arXiv comment21 pages, 1 table. Comments & suggestions welcome!