Geometric generalizations of the square sieve, with an application to cyclic covers

Alina Bucur, Alina Carmen Cojocaru, Matilde N. Lalín +1

We formulate a general problem: given projective schemes $\mathbb{Y}$ and $\mathbb{X}$ over a global field $K$ and a $K$-morphism $\eta$ from $\mathbb{Y}$ to $\mathbb{X}$ of finite de…