4 problems

Global Spherical Shell Conjecture. Any non-Kählerian compact complex surface should belong to one of these classes.

Lelong-number conjecture. If $X$ admits an exact positive $(1,1)$-current not in $L^2_{-1}(X)$, then there exists on $X$ an exact positive current with a non-vanishing Lelong numbe…

Pointwise Lelong-number refinement. If $T$ is not in $L^2_{-1}(X)$ and $x otin L^2{-1}(T|X)$, then there exists on $X$ an exact positive $(1,1)$-current with non-vanishing Lelong n…

Hyperbolicity criterion. If all exact positive $(1,1)$-currents $T$ on $X$ are in $L^2_{-1}(X)$ and satisfy $I(T)=0$, then $X$ is hyperbolic.