On the local geometry of the moduli space of $(2,2)$-threefolds in ${\mathcal{A}}_9$

Elisabetta Colombo, Paola Frediani, Juan Carlos Naranjo +1

We study the local geometry of the moduli space of intermediate Jacobians of $(2,2)$-threefolds in ${\mathbb{P}}^2\times {\mathbb{P}}^2$. More precisely, we prove that a composition…