Seshadri constants on blow-ups of Hirzebruch surfaces

Krishna Hanumanthu, Cyril J. Jacob, Suhas B. N. +1

Let $e,r\ge 0$ be integers and let ${\mathbb{F}}_e:=\mathbb{P}({\mathcal{O}}_{{\mathbb{P}}^1}\oplus {\mathcal{O}}_{{\mathbb{P}}^1}(-e))$ denote the Hirzebruch surface with invariant $e$…