Finite skew braces with isomorphic non-abelian characteristically simple additive and circle groups

Cindy Tsang

A skew brace is a triplet $(A,\cdot ,\circ )$, where $(A,\cdot )$ and $(A,\circ )$ are groups such that the brace relation $x\circ (y\cdot z)=(x\circ y)\cdot x^{-1}\cdot (x\circ z)$…