English

Genus Two Generalization of $A_1$ spherical DAHA

Quantum Algebra 2019-09-20 v1 High Energy Physics - Theory Representation Theory

Abstract

We consider a system of three commuting difference operators in three variables x12,x13,x23x_{12},x_{13},x_{23} with two generic complex parameters q,tq,t. This system and its eigenfunctions generalize the trigonometric A1A_1 Ruijsenaars-Schneider model and A1A_1 Macdonald polynomials, respectively. The principal object of study in this paper is the algebra generated by these difference operators together with operators of multiplication by xij+xij1x_{ij} + x_{ij}^{-1}. We represent the Dehn twists by outer automorphisms of this algebra and prove that these automorphisms satisfy all relations of the mapping class group of the closed genus two surface. Therefore we argue from topological perspective this algebra is a genus two generalization of A1A_1 spherical DAHA.

Keywords

Cite

@article{arxiv.1704.02947,
  title  = {Genus Two Generalization of $A_1$ spherical DAHA},
  author = {S. Arthamonov and Sh. Shakirov},
  journal= {arXiv preprint arXiv:1704.02947},
  year   = {2019}
}
R2 v1 2026-06-22T19:13:06.444Z