Fibered threefolds and Lang-Vojta’s conjecture over function fields

Turchet, Amos

doi:10.1090/tran/6968

Fibered threefolds and Lang-Vojta’s conjecture over function fields
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Trans. Amer. Math. Soc. 369 (2017), 8537-8558 Request permission

Abstract:

Using the techniques introduced by Corvaja and Zannier in 2008 we solve the non-split case of the geometric Lang-Vojta Conjecture for affine surfaces isomorphic to the complement of a conic and two lines in the projective plane. In this situation we deal with sections of an affine threefold fibered over a curve, whose boundary, in the natural projective completion, is a quartic bundle over the base whose fibers have three irreducible components. We prove that the image of each section has bounded degree in terms of the Euler characteristic of the base curve.

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