Kummer Rigidity for K3 Surface Automorphism vis Ricci-Flat Metrics

New Publication by Valentino Tosatti:

Title: Kummer Rigidity for K3 Surface Automorphism vis Ricci-Flat Metrics
Abstract: We give an alternative proof of a result of Cantat & Dupont, showing that any automorphism of a K3 surface with measure of maximal entropy in the Lebesgue class must be a Kummer example. Our method exploits the existence of Ricci-flat metrics on K3s and also covers the non-projective case.
ArXiv: 1808.08673