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20222026
most citedCentral nilpotency of left skew braces and solutions of the Yang-Baxter equation

7 citations · 9 across the 14 of their papers we have counts for

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6 papers · 1 filter

math.GR2026

Bisoluble and Binilpotent Skew Braces of Finite Morley Rank

Maria Ferrara, Moreno Invitti, Marco Trombetti +1

A connected skew brace of finite Morley rank is left nilpotent (resp. weakly soluble) whenever the additive and multiplicative groups are nilpotent (resp. are soluble and the left…

math.GR2026

A probabilistic approach to the Yang--Baxter equation and skew braces

Maria Ferrara, Marco Trombetti, Cindy Tsang

We investigate finite non-degenerate set-theoretic solutions to the Yang--Baxter equation and skew braces using a probabilistic approach. We introduce four probabilities that measu…

math.GR2026

A Counterexample to Byott's Conjecture for Finite Skew Braces

Massimiliano Di Matteo, Maria Ferrara, Marco Trombetti

We construct a finite skew brace with soluble additive group and insoluble multiplicative group. The multiplicative group has a quotient isomorphic to $\PSL_2(7)$, and hence the ex…

math.GR2026

Finite-index Problems in Skew Braces

Massimiliano Di Matteo, Maria Ferrara

We investigate finite-index problems in skew braces. For every sub-skew brace \(A\) of a skew brace \(B\), we prove that finite additive index is equivalent to finite multiplicativ…

math.GR2026

A Finite Skew Brace with Perfect Additive Group and Almost Simple Multiplicative Group

Massimiliano Di Matteo, Maria Ferrara

We construct a finite skew brace whose additive group is perfect and whose multiplicative group is non-perfect and almost simple. This gives an affirmative answer to Problem 20.109…

math.GR2026

Chain conditions on skew braces and solutions of the Yang-Baxter Equation

Massimiliano Di Matteo, Ramón Esteban-Romero, Maria Ferrara +1

Classical works of Hall and McLain show that solubility and local nilpotency play a key role in deriving finite generation in groups from maximal or minimal conditions on normal su…