The central elements of $E_{q,p}(\widehat{s{l}_2}{)}_k$ with the critical level

Wenjing Chang, Xiang-mao Ding, Ke Wu

In this paper we generalize certain results concerning quantum affine algebra $U_q(\widehat{s{l}_2})$ at the critical level to the corresponding elliptic case $E_{q,p}(\widehat{s{l}_2})$.…