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arXiv · 2312.15745

Finite almost simple groups whose holomorph contains a solvable regular subgroup

Cindy Tsang
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Abstract

In our previous paper, we gave a complete list of the finite non-abelian simple groups whose holomorph contains a solvable regular subgroup. In this paper, we refine our previous work by considering all finite almost simple groups. In particular, our result yields a complete characterization of the finite almost simple groups which occur as the type of a Hopf-Galois structure on a solvable extension, or equivalently, the additive group of a skew brace having a solvable multiplicative group.

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Cindy Tsang. 2023-12-25. Finite almost simple groups whose holomorph contains a solvable regular subgroup. https://doi.org/10.32037/agta-2026-001

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