2 problems

BDPP conjecture. The canonical class $K_X$ is pseudoeffective if and only if $X$ is not uniruled.

Let $X$ be a smooth projective variety and $A$ an ample divisor on $X$. Let … where $\xi=c_1(\mathcal{O}_{\mathbb{P}(T_X)}(1))$ is the tautological class on $\mathbb{P}(T_X)$ and…