Nilpotent groups of class three and braces

New constructions of braces on finite nilpotent groups are given and hence this leads to new solutions of the Yang-Baxter equation. In particular, it follows that if a group G of odd order is nilpotent of class three, then it is a homomorphic image of the multiplicative group of a finite left brace...

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Detalles Bibliográficos
Autores: Cedó, Ferran|||0000-0003-4703-2782, Jespens, Eric, Okniński, Jan
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:144962
Acceso en línea:https://ddd.uab.cat/record/144962
https://dx.doi.org/urn:doi:10.5565/PUBLMAT_60116_03
Access Level:acceso abierto
Palabra clave:Yang-Baxter equation
Set-theoretic solution
Brace
Nilpotent group
Metabelian group
Descripción
Sumario:New constructions of braces on finite nilpotent groups are given and hence this leads to new solutions of the Yang-Baxter equation. In particular, it follows that if a group G of odd order is nilpotent of class three, then it is a homomorphic image of the multiplicative group of a finite left brace (i.e. an involutive Yang-Baxter group) which also is a nilpotent group of class three. We give necessary and sufficient conditions for an arbitrary group H to be the multiplicative group of a left brace such that [H, H] ⊆ Soc(H) and H/[H, H] is a standard abelian brace, where Soc(H) denotes the socle of the brace H.