The Effective Cone of Moduli Spaces of Sheaves on a Smooth Quadric Surface

Tim Ryan

Let $\xi$ be a stable Chern character on ${\mathbb{P}}^1\times {\mathbb{P}}^1$, and let $M(\xi )$ be the moduli space of Gieseker semistable sheaves on ${\mathbb{P}}^1\times {\mathbb{P}}^1$ w…