Quantum Berezinian for quantum affine superalgebra $U_q({\widehat{gl}}_{M|N})$

Naihuan Jing, Li Zheng, Jian Zhang

We introduce the quantum Berezinian for the quantum affine superalgebra ${\mathrm{U}}_q({\widehat{\mathfrak{gl}}}_{M|N})$ and show that the coefficients of the quantum Berezinian belon…