Modules over the algebra $\mathcal{V}ir(a,b)$

Jianzhi Han, Qiufan Chen, Yucai Su

For any two complex numbers $a$ and $b$, $\mathcal{V}ir(a,b)$ is a central extension of $\mathcal{W}(a,b)$ which is universal in the case $(a,b)\ne (0,1)$, where $\mathcal{W}(a,b…