Tetrahedron and 3D reflection equations from quantized algebra of functions
Abstract
Soibelman's theory of quantized function algebra A_q(SL_n) provides a representation theoretical scheme to construct a solution of the Zamolodchikov tetrahedron equation. We extend this idea originally due to Kapranov and Voevodsky to A_q(Sp_{2n}) and obtain the intertwiner K corresponding to the quartic Coxeter relation. Together with the previously known 3-dimensional (3D) R matrix, the K yields the first ever solution to the 3D analogue of the reflection equation proposed by Isaev and Kulish. It is shown that matrix elements of R and K are polynomials in q and that there are combinatorial and birational counterparts for R and K. The combinatorial ones arise either at q=0 or by tropicalization of the birational ones. A conjectural description for the type B and F_4 cases is also given.
Keywords
Cite
@article{arxiv.1208.1586,
title = {Tetrahedron and 3D reflection equations from quantized algebra of functions},
author = {Atsuo Kuniba and Masato Okado},
journal= {arXiv preprint arXiv:1208.1586},
year = {2019}
}
Comments
26 pages. Minor corrections