Geometric Lang–Vojta conjecture for integral points on log-general-type pairs

Let kk be an algebraically closed field, let BB be a nonsingular irreducible algebraic curve over kk with function field K=k(B)K=k(B), and let (X,D)(X,D) be a pair of log general type over KK, where XX is a smooth integral projective KK-variety and DXD\subset X is a fixed reduced effective divisor. Let (X,D)(\mathcal X,\mathcal D) be a model of (X,D)(X,D) over BB, and let SBS\subset B be finite. Writing

OS,D(X):={σPX(K):f(σP(B)D)S}\mathcal O_{S,\mathcal D}(\mathcal X):=\{\sigma_P\in X(K): f(\sigma_P(B)\cap\mathcal D)\subseteq S\}

for the set of (S,D)(S,\mathcal D)-integral sections, and letting Z\mathcal Z denote the Zariski closure in X\mathcal X of a closed subset ZXDZ\subset X\smallsetminus D, Geometric Lang–Vojta conjecture. There exist a proper closed subset ZXDZ\subset X\smallsetminus D and a constant m=m(X,D)>0m=m(\mathcal X,\mathcal D)>0 such that, for every σPOS,D(X)\sigma_P\in\mathcal O_{S,\mathcal D}(\mathcal X) with σP(B)⊄Z\sigma_P(B)\not\subset\mathcal Z,

degBσPDm(2g(B)2+#S).\deg_{B}\sigma_P^*\mathcal D\leq m\,(2g(B)-2+\# S).

This conjecture predicts uniform bounds on the intersection of integral sections with the boundary divisor for pairs of log general type. It is known in some cases, but for a general complex abelian variety—particularly when its TrK/C(A)0\operatorname{Tr}_{K/\mathbb C}(A)\neq 0 and AA is nonconstant—the conjecture remains open.

Sources & referencesView supporting material

Primary source

Paolo Dolce, “Kobayashi length bounds on bordered surfaces and generalized integral points on abelian varieties”, arXiv:2603.24193 (2026).

Additional references

2 papers in this index state this conjecture (2019–2026). The statement above is taken from the most recent of them; the others are arXiv:1912.02932.

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