The four-dimensional numerical non-vanishing conjecture

Let (X,B)(X,B) be a log minimal model with dim(X)=4\dim(X)=4, and let CC be a very general curve in XX. Four-dimensional numerical non-vanishing conjecture. If (K+B)C>0(K+B)\cdot C>0 for very general curves CXC\subset X, then (K+B)4>0(K+B)^4>0. This condition is presented as equivalent to the four-dimensional case of the Log Abundance Conjecture, using the main theorem for log minimal models whose log canonical divisor has nef dimension at most 33. The source does not state a resolution of this equivalent formulation.

Sources & referencesView supporting material

Primary source

Florin Ambro, “The nef dimension of log minimal models”, arXiv:math/0411471 (2004).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.