Dynamical Mordell-Lang and Automorphisms of Blow-ups

John Lesieutre, Daniel Litt

We show that if $\varphi :X\to X$ is an automorphism of a smooth projective variety and $D\subset X$ is an irreducible divisor for which the set of $d$ in $D$ with ${\varphi }^n(d)$ in $D$ for…