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Related papers: On bi-skew braces and brace blocks

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We study relations between different notions of nilpotency in the context of skew braces and applications to the structure of solutions to the Yang-Baxter equation. In particular, we consider annihilator nilpotent skew braces, an important…

Rings and Algebras · Mathematics 2023-10-13 E. Jespers , A. Van Antwerpen , L. Vendramin

L. Childs has defined a skew brace $(G, \cdot, \circ)$ to be a bi-skew brace if $(G, \circ, \cdot)$ is also a skew brace, and has given applications of this concept to the equivalent theory of Hopf-Galois structures. The goal of this paper…

Group Theory · Mathematics 2020-07-28 A. Caranti

We study 2-reductive non-involutive non-degenerate set-theoretic solutions of the Yang-Baxter equation. We give a combinatorial construction of any such solution of any (even infinite) size. We also prove that solutions associated to a skew…

Combinatorics · Mathematics 2023-03-28 Přemysl Jedlička , Agata Pilitowska

Skew braces are one of the main algebraic tools controlling the structure of a non-degenerate bijective set-theoretic solution of the Yang-Baxter equation. The aim of this paper is to study model-theoretically tame skew braces, with…

Group Theory · Mathematics 2025-08-26 Maria Ferrara , Marco Trombetti , Moreno Invitti , Frank Olaf Wagner

Braces are generalizations of radical rings, introduced by Rump to study involutive non-degenerate set-theoretical solutions of the Yang-Baxter equation (YBE). Skew braces were also recently introduced as a tool to study not necessarily…

Group Theory · Mathematics 2018-04-04 A. Smoktunowicz , L. Vendramin

We define isoclinism of skew braces and present several applications. We study some properties of skew braces that are invariant under isoclinism. For example, we prove that right nilpotency is an isoclinism invariant. This result has…

Group Theory · Mathematics 2025-06-30 Thomas Letourmy , Leandro Vendramin

We study series of left ideals of skew left braces that are analogs of upper central series of groups. These concepts allow us to define left and right nilpotent skew left braces. Several results related to these concepts are proved and…

Rings and Algebras · Mathematics 2019-06-27 Ferran Cedo , Agata Smoktunowicz , Leandro Vendramin

We prove that any set-theoretic solution of the Yang-Baxter equation associated to a dual weak brace is a strong semilattice of non-degenerate bijective solutions. This fact makes use of the description of any dual weak brace $S$ we provide…

Quantum Algebra · Mathematics 2024-03-22 Francesco Catino , Marzia Mazzotta , Paola Stefanelli

Using Bieberbach groups we study multipermutation involutive solutions to the Yang-Baxter equation. We use a linear representation of the structure group of an involutive solution to study the unique product property in such groups. An…

Rings and Algebras · Mathematics 2020-03-11 E. Acri , R. Lutowski , L. Vendramin

Skew braces are algebraic structures related to the solutions of the set-theoretic quantum Yang-Baxter equation. We develop the central nilpotency theory for such algebraic structures in the sense of Freese-McKenzie \cite{comm} and we…

Group Theory · Mathematics 2021-09-10 Marco Bonatto , Přemysl Jedlička

Skew braces play a central role in the theory of set-theoretic non-degenerate solutions of the Yang--Baxter equation, since their algebraic properties significantly affect the behaviour of the corresponding solutions (see for example…

Rings and Algebras · Mathematics 2025-08-15 A. Caranti , I. Del Corso , M. Di Matteo , M. Ferrara , M. Trombetti

Dynamical skew braces are known to produce solutions to the quiver-theoretic Yang--Baxter equation. Under a technical hypothesis, we prove that these solutions are braided groupoids (and hence skew bracoids in the sense of Sheng, Tang and…

Quantum Algebra · Mathematics 2025-05-21 Davide Ferri

Our primary focus is on the theory of skew braces, specifically exploring their connection with combinatorial solutions to the Yang-Baxter equation. Skew braces have recently emerged as intriguing algebraic structures, and their link to the…

Rings and Algebras · Mathematics 2024-12-05 Leandro Vendramin

Isabel Martin-Lyons and Paul J.Truman generalized the definition of a skew brace to give a new algebraic object, which they termed a skew bracoid. Their construction involves two groups interacting in a manner analogous to the compatibility…

Rings and Algebras · Mathematics 2024-04-16 Izabela Agata Malinowska

The study of non-degenerate set-theoretic solutions of the Yang-Baxter equation calls for a deep understanding of the algebraic structure of a skew left brace. In this paper, the skew brace theoretical property of solubility is introduced…

Braces were introduced by Rump as a generalization of Jacobson radical rings. It turns out that braces allow us to use ring-theoretic and group-theoretic methods for studying involutive solutions to the Yang-Baxter equation. If braces are…

Rings and Algebras · Mathematics 2019-06-25 Leandro Vendramin

The interplay between set-theoretic solutions of the Yang--Baxter equation of Mathematical Physics, skew braces, regular subgroups, and Hopf--Galois structures has spawned a considerable body of literature in recent years. In a recent…

Group Theory · Mathematics 2021-10-25 A. Caranti , L. Stefanello

We introduce a novel algebraic structure called di-skew brace by which we show that generalized digroups systematically yield bijective, non-degenerate solutions to the set-theoretic Yang-Baxter equation. We study the structural properties…

Quantum Algebra · Mathematics 2026-01-08 Andrea Albano , Paola Stefanelli

This paper examines the connections between (relative) Rota--Baxter groups, skew left braces, and enlargements of these structures on naturally associated semi-direct products. Given a skew left brace, we define a new skew left brace,…

Quantum Algebra · Mathematics 2026-04-01 Pragya Belwal , Mahender Singh

Skew bracoids have been shown to have applications in Hopf-Galois theory. We show that a certain family of skew bracoids correspond bijectively with left cancellative semibraces. A consequence of this correspondence is that skew bracoids in…

Rings and Algebras · Mathematics 2025-04-11 Ilaria Colazzo , Alan Koch , Isabel Martin-Lyons , Paul J. Truman
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