Isomorphisms between quantum groups $U_q({\mathfrak{sl}}_{n+1})$ and $U_p({\mathfrak{sl}}_{n+1})$

Li-Bin Li, Jie-Tai Yu

Let $\mathbb{K}$ be a field and suppose $p,q\in {\mathbb{K}}^{\ast }$ are not roots of unity. We prove that the two quantum groups $U_q({\mathfrak{sl}}_{n+1})$ and $U_p({\mathfrak{sl}}_{n+1})$…