Whittaker modules for the derivation Lie algebra of torus with two variables

Haifeng Lian, Xiufu Zhang

Let $\mathcal{L}$ be the derivation Lie algebra of $\mathbb{C}[t_1^{\pm 1},t_2^{\pm 1}]$. Given a triangle decomposition $\mathcal{L} =\mathcal{L}^{+}\oplus\mathfrak{h}\oplus\math…