Good reduction of K3 Surfaces in equicharacteristic p
arXiv:1902.02630
Abstract
We show that for smooth and proper varieties over local fields with no non-trivial vector fields, good reduction descends over purely inseparable extensions. We use this to extend the Neron-Ogg-Shafarevich criterion for K3 surfaces to the equicharacteristic case.
15 pages, comments welcome!