Matrix product solution to the reflection equation associated with a coideal subalgebra of $U_q(A^{(1)}_{n-1})$

Autor: Kuniba, Atsuo, Okado, Masato, Yoneyama, Akihito
Rok vydání: 2018
Předmět:
Zdroj: Letters in Mathematical Physics (2019) 109, 2049-2067
Druh dokumentu: Working Paper
DOI: 10.1007/s11005-019-01175-x
Popis: We present a new solution to the reflection equation associated with a coideal subalgebra of $U_q(A^{(1)}_{n-1})$ in the symmetric tensor representations and their dual. Elements of the $K$ matrix are expressed by a matrix product formula involving terminating $q$-hypergeometric series in $q$-boson generators. At $q=0$, our result reproduces a known set-theoretical solution to the reflection equation connected to the crystal base theory.
Comment: 11 pages, v5: minor corrections
Databáze: arXiv