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Conjectural estimates on the Mordell-Wei...
Ortiz, Andrea Surroc...
Conjectural estimates on the Mordell-Weil and Tate-Shafarevich groups of an abelian variety by Ortiz, Andrea Surroca ( Author )
Australian National University
01-08-2023
We consider an abelian variety defined over a number field. We give conditional bounds for the order of its Tate-Shafarevich group, as well as conditional bounds for the N\'eron-Tate height of generators of its Mordell-Weil group. The bounds are implied by strong but nowadays classical conjectures, such as the Birch and Swinnerton-Dyer conjecture and the functional equation of the L-series. In particular, we improve and generalise a result by D. Goldfeld and L. Szpiro on the order of the Tate-Shafarevich group, and extends a conjecture of S. Lang on the canonical height of a system of generators of the free part of the Mordell-Weil group. The method is an extension of the algorithm proposed by Yu. Manin for finding a basis for the non-torsion rational points of an elliptic curve defined over the rationals.
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Article
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29.34 KB
English
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MYR 0.01
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http://arxiv.org/abs/0801.1054
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