2 problems

Let $\mathbb{F}$ be a field of characteristic $p>2$, let $c\in\mathbb{F}$, and let $L_{\operatorname{Vir}}(c,0)_{\mathbb{F}}$ denote the simple quotient Virasoro vertex operator al…

Let $M$ be a semisimple Frobenius manifold, let its principal hierarchy have tau function $Z_M$, and let $L_m$ be the operators defining the Virasoro symmetries by … A super tau-co…