English

Classification of quasi-trigonometric solutions of the classical Yang-Baxter equation

Quantum Algebra 2008-06-13 v1

Abstract

It was proved by Montaner and Zelmanov that up to classical twisting Lie bialgebra structures on g[u]\mathfrak{g}[u] fall into four classes. Here g\mathfrak{g} is a simple complex finite-dimensional Lie algebra. It turns out that classical twists within one of these four classes are in a one-to-one correspondence with the so-called quasi-trigonometric solutions of the classical Yang-Baxter equation. In this paper we give a complete list of the quasi-trigonometric solutions in terms of sub-diagrams of the certain Dynkin diagrams related to g\mathfrak{g}. We also explain how to quantize the corresponding Lie bialgebra structures.

Keywords

Cite

@article{arxiv.0806.2053,
  title  = {Classification of quasi-trigonometric solutions of the classical Yang-Baxter equation},
  author = {Iulia Pop and Alexander Stolin},
  journal= {arXiv preprint arXiv:0806.2053},
  year   = {2008}
}
R2 v1 2026-06-21T10:49:55.374Z