The Wahl map of the normalization of nodal curves on Hirzebruch surfaces

Miguel Guerrero-Castillo

In this paper we study the Wahl map for the normalization of a $\delta$-nodal curve $C$ on a Hirzebruch surface ${\mathbb{F}}_n$ for $n\ge 0$. Let $\sigma :X\to {\mathbb{F}}_n$ be th…