Demailly's Brody–algebraic hyperbolicity conjecture

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A complex projective variety XX is algebraically hyperbolic if there exists an ϵ>0\epsilon>0 such that every curve C⊂XC\subset X of geometric genus g(C)g(C) satisfies

2g(C)−2≥ϵdeg⁡(C).2g(C)-2\geq\epsilon\deg(C).

It is Brody hyperbolic if it admits no holomorphic maps from C\mathbb{C}. Demailly's conjecture. A smooth complex projective variety XX is Brody hyperbolic if and only if it is algebraically hyperbolic. The conjecture would identify the metric and algebraic notions of hyperbolicity for smooth projective varieties; the supplied text gives no resolution status.

References

Primary source

Izzet Coskun and Eric Riedl, “Algebraic hyperbolicity of the very general quintic surface in P^3”, arXiv:1804.04107 (2018).

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