collaborators

6 papers

math.GR2026

Bijective solutions to the Pentagon Equation

I. Colazzo, J. Okniński, A. Van Antwerpen

A complete classification of all finite bijective set-theoretic solutions to the Pentagon Equation is obtained. First, it is shown that every such solution determines a sem…

math.RA2026

On set-theoretic solutions of pentagon equation and positive basis Hopf algebras

Ilaria Colazzo, Geoffrey Janssens

We investigate the connection between bijective, not necessarily finite, set-theoretic solutions of the pentagon equation and Hopf algebras. Firstly, we prove that finite solutions…

math.QA2025

On the cabling of non-involutive set-theoretic solutions of the Yang--Baxter equation

Ilaria Colazzo, Arne Van Antwerpen

We extend the cabling method by Lebed, Ramírez and Vendramin from involutive to bijective non-degenerate set-theoretic solutions of the Yang--Baxter equation by working in the Yan…

math.RA2025

Structure algebras of finite set-theoretic solutions of the Yang--Baxter equation

Ilaria Colazzo, Eric Jespers, Łukasz Kubat +1

Quadratic algebras related to some classes of finite left non-degenerate solutions (X,r) of the Yang--Baxter equation have been intensively studied since they are the associative r…

math.RA2025

Simple solutions of the Yang-Baxter equation

Ilaria Colazzo, Eric Jespers, Łukasz Kubat +1

We study simple set-theoretic solutions of the Yang-Baxter equation that are finite and non-degenerate. Such retractable solutions are fully described and to investigate the irretr…

math.RA2025

Skew bracoids containing a skew brace

Ilaria Colazzo, Alan Koch, Isabel Martin-Lyons +1

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…