Split epimorphims and Baer sums of left skew braces
Category Theory
2023-10-10 v1
Abstract
We investigate the split epimorphisms in the categories of digroups and left skew braces. We show that, unlike the category DiGp of digroups, the category SkB of left skew braces is strongly protomodular. From that, we describe the expected Baer sums of exact sequences of left skew braces with abelian kernel.
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Cite
@article{arxiv.2310.05568,
title = {Split epimorphims and Baer sums of left skew braces},
author = {Dominique Bourn},
journal= {arXiv preprint arXiv:2310.05568},
year = {2023}
}
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16 pages