Limit-height conjecture for translated complete intersections in toric varieties
Limit-height conjecture for translated complete intersections in toric varieties
Let be a number field with set of places , let be a split algebraic torus over of dimension with character lattice , and let . Let be a family of nonzero Laurent polynomials in . Let be a complete toric variety with torus , equipped with semipositive toric metrized divisors . For a family of points , write and let denote the cycle obtained by properly intersecting the corresponding twisted divisors on . Limit-height conjecture. For each sequence of torsion points in whose projection to via the diagonal action is strict, one has
Here is the weight of , is the -adic roof function of , and is the Legendre-Fenchel dual of the -adic Ronkin function of . This conjectural formula would express the limiting height of translated higher-codimensional complete-intersection cycles using only toric metrized-divisor data and the arithmetic Ronkin data of the defining Laurent polynomials; it strengthens earlier guesses of Gualdi and Sombra and remains unresolved here.
Sources & referencesView supporting material
Primary source
Roberto Gualdi and Martín Sombra, “Heights of complete intersections in toric varieties”, arXiv:2412.16308 (2026).
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