Algebraic fibre spaces with strictly nef relative anti-log canonical divisor

Jie Liu, Wenhao Ou, Juanyong Wang +2

Let $(X,\Delta )$ be a projective klt pair, and $f:X\to Y$ a fibration to a smooth projective variety $Y$ with strictly nef relative anti-log canonical divisor $-(K_{X/Y}+\Delta )$. We prove t…