Lang–Vojta's pseudo-algebraic-hyperbolicity conjecture

Let kk be an algebraically closed field of characteristic zero. A projective variety XX over kk is pseudo-algebraically hyperbolic over kk if there is a proper closed subset ΔX\Delta\subsetneq X such that, for every ample line bundle LL on XX, there is a real number α(X,Δ,L)\alpha(X,\Delta,L) depending only on XX, Δ\Delta, and LL such that, for every smooth projective connected curve CC over kk and every morphism f:CXf:C\to X with f(C)⊄Δf(C)\not\subset\Delta,

degCfLα(X,Δ,L)genus(C).\deg_C f^*L\leq\alpha(X,\Delta,L)\cdot\operatorname{genus}(C).

A projective variety XX over kk is of general type if, for every irreducible component YY of XX and every resolution of singularities Y~Y\widetilde{Y}\to Y, the canonical bundle ωY~\omega_{\widetilde{Y}} is big.

Lang–Vojta's pseudo-algebraic-hyperbolicity conjecture. A projective integral variety XX over kk is of general type if and only if XX is pseudo-algebraically hyperbolic over kk.

The conjecture strengthens pseudo-11-boundedness by requiring the degree bound to grow linearly with the genus of the source curve. The source describes this as conjecturally equivalent to the preceding boundedness condition and gives no resolution status.

Sources & referencesView supporting material

Primary source

Ariyan Javanpeykar and Junyi Xie, “Finiteness properties of pseudo-hyperbolic varieties”, arXiv:1909.12187 (2020).

Additional references

2 papers in this index state this conjecture (2019). The statement above is taken from the most recent of them; the others are arXiv:1907.11225.

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.