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In this paper we present a characterization of finite simple involutive non-degenerate set-theoretic solutions of the Yang-Baxter equation by means of left braces and we provide some significant examples.

Quantum Algebra · Mathematics 2022-04-01 Marco Castelli

Framework for constructing Fock spaces associated either with certain solutions of the quantum Yang-Baxter equation or with infinite dimensional Hecke algebra is presented. For the former case, the quantum deformed oscillator algebra…

High Energy Physics - Theory · Physics 2008-02-03 Alexei Mishchenko

The main aim of this paper is to determine reflections to bijective and non-degenerate solutions of the Yang-Baxter equation, by exploring their connections with their derived solutions. This is motivated by a recent description of left…

Quantum Algebra · Mathematics 2025-05-02 Andrea Albano , Marzia Mazzotta , Paola Stefanelli

A three-parametric $R$-matrix satisfying a graded Yang-Baxter equation is introduced.This $R$-matrix allows us to construct new quantum supergroups which are deformations of the supergroup $GL(1/1)$ and the universal enveloping algebra…

High Energy Physics - Theory · Physics 2007-05-23 Nguyen Anh Ky , Nguyen Thi Hong Van

In this paper, we provide techniques to obtain left non-degenerate set-theoretic solutions of the Yang-Baxter equation, drawing on the class of right groups. To this end, we introduce the new algebraic structures of left $RG$-semibraces,…

Group Theory · Mathematics 2026-05-26 Andrea Albano , Alberto Facchini , Marzia Mazzotta , Paola Stefanelli

We describe a geometric construction of all nondegenerate trigonometric solutions of the associative and classical Yang-Baxter equations. In the associative case the solutions come from symmetric spherical orders over the irreducible nodal…

Algebraic Geometry · Mathematics 2021-05-10 Alexander Polishchuk

A coloured braid group representation (CBGR) is constructed with the help of some modified universal ${\cal R}$-matrix, associated to $U_q(gl(2))$ quantised algebra. Explicit realisation of Faddeev-Reshetikhin-Takhtajan (FRT) algebra is…

High Energy Physics - Theory · Physics 2008-02-03 B. Basu-Mallick

In this article we use a parametrized version of the FRT construction to construct two new coquasitriangular Hopf algebras. The first one, $\widehat{SL_q(2)}$, is a quantization of the coordinate ring on affine $SL(2)$. We show that there…

Representation Theory · Mathematics 2016-11-16 Valentin Buciumas

Boundary solutions to the quantum Yang-Baxter (qYB) equation are defined to be those in the boundary of (but not in) the variety of solutions to the ``modified'' qYB equation, the latter being analogous to the modified classical Yang-Baxter…

q-alg · Mathematics 2016-09-08 Murray Gerstenhaber , Anthony Giaquinto

In this paper we investigate the algebraic geometric nature of a solution of the Yang-Baxter equation based on the quantum deformation of the centrally extended $sl(2|2)$ superalgebra proposed by Beisert and Koroteev \cite{BEKO}. We derive…

Mathematical Physics · Physics 2017-04-05 M. J. Martins

By calculating inequivalent classical r-matrices for the $gl(2,\mathbb{R})$ Lie algebra as solutions of (modified) classical Yang-Baxter equation ((m)CYBE)), we classify the YB deformations of Wess-Zumino-Witten (WZW) model on the…

High Energy Physics - Theory · Physics 2023-11-07 Ali Eghbali , Tayebe Parvizi , Adel Rezaei-Aghdam

The structure groups of non-degenerate symmetric set-theoretical solutions of the quantum Yang-Baxter equation provide an infinite family of Garside groups with many interesting properties. Given a non-degenerate symmetric solution, we…

Group Theory · Mathematics 2024-11-20 Fabienne Chouraqui

The quantum bialgebra related to the Baxter's eight-vertex R-matrix is found as a quantum deformation of the Lie algebra of sl(2)-valued automorphic functions on a complex torus.

High Energy Physics - Theory · Physics 2009-10-22 D. B. Uglov

A trick to obtain a systematic solution to the set-theoretical reflection equation is presented from a known one to the Yang-Baxter equation. Examples are given from crystals and geometric crystals associated to the quantum affine algebra…

Mathematical Physics · Physics 2019-12-17 Atsuo Kuniba , Masato Okado

We study the deformations of a wide class of Yang-Baxter (YB) operators arising from Lie algebras. We relate the higher order deformations of YB operators to Lie algebra deformations. We show that the obstruction to integrating deformations…

Quantum Algebra · Mathematics 2024-03-18 Emanuele Zappala

We study the general rational solution of the Yang-Baxter equation with the symmetry algebra sl(3). The R-matrix acting in the tensor product of two arbitrary representations of the symmetry algebra can be represented as the product of the…

Quantum Algebra · Mathematics 2007-05-23 S. E. Derkachov

We develop a theory of non-unitary set-theoretical solutions to the Quantum Yang-Baxter equation. Our results generalize those obtained by Etingof, Schedler and the author. We remark that some of our constructions are similar to…

Quantum Algebra · Mathematics 2007-05-23 Alexandre Soloviev

We investigate different Hopf algebras associated to Yang's solution of quantum Yang-Baxter equation. It is shown that for the precise definition of the algebra one needs the commutation relations for the deformed algebra of formal currents…

q-alg · Mathematics 2007-05-23 S. Khoroshkin , D. Lebedev , S. Pakuliak

We give a selfcontained introduction to the theory of quantum groups according to Drinfeld highlighting the formal aspects as well as the applications to the Yang-Baxter equation and representation theory. Introductions to Hopf algebras,…

High Energy Physics - Theory · Physics 2009-10-22 T. Tjin

We have constructed series of the spectral parameter dependent solutions to the Yang-Baxter equations defined on the tensor product of reducible representations with symmetry of quantum algebra. These series are produced as descendant…

Mathematical Physics · Physics 2018-10-17 Sh. A. Khachatryan