The Poisson spectrum of the symmetric algebra of the Virasoro algebra

Alexey V. Petukhov, Susan J. Sierra

Let $W=\mathbb{C}[t,t^{-1}]{\partial }_t$ be the Witt algebra of algebraic vector fields on ${\mathbb{C}}^{\times }$ and let $Vir$ be the Virasoro algebra, the unique nontrivial central…