Lang's intermediate conjecture for exceptional loci

Let kk be an algebraically closed field of characteristic zero, let XX be a projective variety over kk, let ΔX\Delta\subset X be a closed subset, and let pp be a positive integer. The paper defines Mordellicity, algebraic hyperbolicity, and algebraic boundedness modulo Δ\Delta. Lang's intermediate conjecture for exceptional loci. The following statements are equivalent: every subvariety YY of XX of dimension at least pp with Y⊄ΔY\not\subset\Delta is of general type; XX is Mordellic modulo Δ\Delta over kk; XX is pp-Mordellic modulo Δ\Delta over kk; XX is pp-algebraically hyperbolic modulo Δ\Delta over kk; and XX is pp-algebraically bounded modulo Δ\Delta over kk. The source notes that some implications and special cases are known, while the full equivalence is conjectural.

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Primary source

Antoine Etesse, Ariyan Javanpeykar and Erwan Rousseau, “Algebraic intermediate hyperbolicities”, arXiv:2012.07803 (2021).

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