Uniformity in Mordell–Lang for curves
Résumé
Consider a smooth, geometrically irreducible, projective curve of genus g ≥ 2 defined over a number field of degree d ≥ 1. It has at most finitely many rational points by the Mordell Conjecture, a theorem of Faltings. We show that the number of rational points is bounded only in terms of g, d, and the Mordell-Weil rank of the curve's Jacobian, thereby answering in the affirmative a question of Mazur. In addition we obtain uniform bounds, in g and d, for the number of geometric torsion points of the Jacobian which lie in the image of an Abel-Jacobi map. Both estimates generalize our previous work for 1-parameter families. Our proof uses Vojta's approach to the Mordell Conjecture, and the key new ingredient is the generalization of a height inequality due to the second-and third-named authors.
Domaines
Mathématiques [math]
Fichier principal
Dimitrov et al. - 2021 - Uniformity in Mordell–Lang for curves.pdf (661.61 Ko)
Télécharger le fichier
Origine | Fichiers produits par l'(les) auteur(s) |
---|