Strongest Lang–Vojta exceptional-locus conjecture

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Let kk be an algebraically closed field of characteristic zero and let XX be a projective variety over kk. Let ΔXgr\Delta_X^{\mathrm{gr}}, ΔXMor\Delta_X^{\mathrm{Mor}}, ΔXgeom−hyp\Delta_X^{\mathrm{geom-hyp}}, ΔX1−bounded\Delta_X^{\mathrm{1-bounded}}, ΔXbounded\Delta_X^{\mathrm{bounded}}, and ΔXalg−hyp\Delta_X^{\mathrm{alg-hyp}} denote the corresponding exceptional loci, and let ΔXBr\Delta_X^{\mathrm{Br}} and ΔXKob\Delta_X^{\mathrm{Kob}} denote the Brody and Kobayashi exceptional loci. Strongest Lang–Vojta conjecture. These loci satisfy

ΔXgr=ΔXMor=ΔXgeom−hyp=ΔX1−bounded=ΔXbounded=ΔXalg−hyp.\Delta_X^{\mathrm{gr}}=\Delta_X^{\mathrm{Mor}}=\Delta_X^{\mathrm{geom-hyp}}=\Delta_X^{\mathrm{1-bounded}}=\Delta_X^{\mathrm{bounded}}=\Delta_X^{\mathrm{alg-hyp}}.

Moreover, XX is of general type if and only if ΔXgr≠X\Delta_X^{\mathrm{gr}}\neq X, and if k=Ck=\mathbb{C} then

ΔXgr=ΔXBr=ΔXKob.\Delta_X^{\mathrm{gr}}=\Delta_X^{\mathrm{Br}}=\Delta_X^{\mathrm{Kob}}.

The conjecture is the strongest exceptional-locus formulation of Lang–Vojta; the source provides no resolution status.

References

Primary source

Ariyan Javanpeykar, “The Lang-Vojta conjectures on projective pseudo-hyperbolic varieties”, arXiv:2002.11981 (2020).

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