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In this paper, we derive pre-anti-flexible algebras structures in term of zero weight's Rota-Baxter operators defined on anti-flexible algebras, view pre-anti-flexible algebras as a splitting of anti-flexible algebras, introduce the notion…

Rings and Algebras · Mathematics 2021-12-08 Mafoya Landry Dassoundo

In this paper, we introduce and study new classes of sub-vertex operator algebras of the lattice vertex operator algebras (VOAs), which we call the conic, Borel, and parabolic-type subVOAs. These CFT-type VOAs, which are not necessarily…

Quantum Algebra · Mathematics 2025-05-16 Jianqi Liu

In this paper, we establish a bialgebra theory for Reynolds Lie algebras. First we introduce the notion of a quadratic Reynolds Lie algebra and show that it induces an isomorphism from the adjoint representation to the coadjoint…

Rings and Algebras · Mathematics 2025-11-06 Shuai Hou , Maxim Goncharov

This paper describes the vector bundle on the elliptic modular curve that is associated to a vertex operator algebra $V$ (VOA) or more generally a quasi-vertex operator algebra (QVOA), with a view towards future applications aimed at…

Number Theory · Mathematics 2026-01-16 Daniel Barake , Owen Chuchman , Cameron Franc , Geoffrey Mason , Brett Nasserden

We introduce the notion of quasi-triangular Leibniz bialgebras, which can be constructed from solutions of the classical Leibniz Yang-Baxter equation (CLYBE) whose skew-symmetric parts are invariant. In addition to triangular Leibniz…

Quantum Algebra · Mathematics 2024-10-07 Chengming Bai , Guilai Liu , Yunhe Sheng , Rong Tang

In this paper, we introduce the definition of multiplicative $\omega$-Lie bialgebra, which is equivalent to the Manin triples and matched pairs. We also study the $\omega$-Yang-Baxter equation and Yang-Baxter $\omega$-Lie bialgebra. The…

Rings and Algebras · Mathematics 2025-10-14 Yining Sun , Zeyu Hao , Ziyi Zhang , Liangyun Chen

At the previous congress (CRM 6), we reviewed the construction of Yang-Baxter operators from associative algebras, and presented some (colored) bialgebras and Yang-Baxter systems related to them. The current talk deals with Yang-Baxter…

Quantum Algebra · Mathematics 2011-07-06 Florin F. Nichita

In this paper, we develop the bialgebra theory for Lie-Yamaguti algebras. For this purpose, we exploit two types of compatibility conditions: local cocycle condition and double construction. We define the classical Yang-Baxter equation in…

Rings and Algebras · Mathematics 2023-04-24 Jia Zhao , Yu Qiao

We establish a bialgebra theory for anti-flexible algebras in this paper. We introduce the notion of an anti-flexible bialgebra which is equivalent to a Manin triple of anti-flexible algebras. The study of a special case of anti-flexible…

Rings and Algebras · Mathematics 2021-12-08 Mafoya Landry Dassoundo , Chengming Bai , Mahouton Norbert Hounkonnou

It is shown that all strongly symmetric elements are solutions of constant classical Yang-Baxter equation in Lie algebra, or of quantum Yang-Baxter equation in algebra. Otherwise, all solutions of constant classical Yang-Baxter equation…

Quantum Algebra · Mathematics 2009-11-10 Shouchuan Zhang

Given a rack Q and a ring A, one can construct a Yang-Baxter operator c_Q: V tensor V --> V tensor V on the free A-module V = AQ by setting c_Q(x tensor y) = y tensor x^y for all x,y in Q. In answer to a question initiated by D.N. Yetter…

Quantum Algebra · Mathematics 2014-10-01 Michael Eisermann

Rota-Baxter operators on various structures have found important applications in diverse areas, from renormalization of quantum field theory to Yang-Baxter equations. Relative Rota-Baxter operators on Lie algebras are closely related to…

Quantum Algebra · Mathematics 2024-08-15 Xing Gao , Li Guo , Zongjian Han , Yi Zhang

In this paper, we first introduce representations of averaging pre-Lie algebras and study their matched pairs, Manin triples, and bialgebra theories. We prove that these three notions are equivalent under certain conditions. Moreover, by…

Rings and Algebras · Mathematics 2026-03-26 Lin Gao , Mengke Yang , Yuanyuan Zhang

We propose a new type of the Yang-Baxter equation (YBE) and the decorated Yang-Baxter equation (DYBE). Those relations for the fermionic R-operator were introduced recently as a tool to treat the integrability of the fermion models. Using…

Strongly Correlated Electrons · Physics 2009-10-31 Yukiko Umeno , Masahiro Shiroishi , Miki Wadati

We define a new class of unitary solutions to the classical Yang-Baxter equation (CYBE). These ``boundary solutions'' are those which lie in the closure of the space of unitary solutions to the modified classical Yang-Baxter equation…

q-alg · Mathematics 2008-02-03 Murray Gerstenhaber , Anthony Giaquinto

The purpose of this paper is to study the $\mathcal{O}$-operators on Malcev algebras and discuss the solutions of Malcev Yang-Baxter equation by $\mathcal{O}$-operators. Furthermore we introduce the notion of weighted…

Rings and Algebras · Mathematics 2022-06-09 F. Harrathi , S. Mabrouk , O. Ncib , S. Silvestrov

We find a new $4\times4$ solution to the $osp_q(1|2)$-invariant Yang-Baxter equation with simple dependence on the spectral parameter and propose $2\times 2$ matrix expressions for the corresponding Lax operator. The general inhomogeneous…

Mathematical Physics · Physics 2009-03-11 D. Karakhanyan , Sh. Khachatryan

We study Yang-Baxter equations with orthosymplectic supersymmetry. We extend a new approach of the construction of the spinor and metaplectic $\hat{\cal R}$-operators with orthogonal and symplectic symmetries to the supersymmetric case of…

Mathematical Physics · Physics 2021-03-17 A. P. Isaev , D. Karakhanyan , R. Kirschner

Solutions of the classical Yang-Baxter equation provide a systematic method to construct integrable quantum systems in an algebraic manner. A Lie algebra can be associated with any solution of the classical Yang--Baxter equation, from which…

Exactly Solvable and Integrable Systems · Physics 2017-06-13 Jon Links

In this paper, we establish the cohomology of relative Rota-Baxter operators on Lie-Yamaguti algebras via the Yamaguti cohomology. Then we use this type of cohomology to characterize deformations of relative Rota-Baxter operators on…

Rings and Algebras · Mathematics 2022-06-14 Jia Zhao , Yu Qiao