On supported deformations and birational isotriviality
Luca Rizzi, Francesco Zucconi
Published: 2025/6/8
Abstract
It is well known that the general fibers of a fibration $f\colon X\to B$ are isomorphic if the general Kodaira-Spencer class vanishes. In this paper we consider the birational analogue when the general Kodaira-Spencer class is supported on a divisor.