Common divisor graphs for skew braces
Combinatorics
2025-02-04 v3 Group Theory
Abstract
We introduce two common divisor graphs associated with a finite skew brace, based on its - and -orbits. We prove that the number of connected components is at most two and the diameter of a connected component is at most four. Furthermore, we investigate their relationship with isoclinism. Similarly to its group theoretic inspiration, the skew braces with a graph with two disconnected vertices are very restricted and are determined. Finally, we classify all finite skew braces with a graph with one vertex, where four infinite families arise.
Cite
@article{arxiv.2306.12415,
title = {Common divisor graphs for skew braces},
author = {Silvia Properzi and Arne Van Antwerpen},
journal= {arXiv preprint arXiv:2306.12415},
year = {2025}
}
Comments
Postprint version