Two-parameter Quantum Affine Algebra $U_{r,s}(\widehat{{\mathfrak{sl}}_n})$, Drinfel'd Realization and Quantum Affine Lyndon Basis

Naihong Hu, Marc Rosso, Honglian Zhang

We further define two-parameter quantum affine algebra $U_{r,s}(\widehat{{\mathfrak{sl}}_n})$ $(n>2)$ after the work on the finite cases (see [BW1], [BGH1], [HS] & [BH]), which turns ou…