Effective Mordell for curves with enough automorphisms

Fuente: arXiv
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Main Authors: Garcia-Fritz, Natalia, Pasten, Hector
Format: Preprint
Published: 2025
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author Garcia-Fritz, Natalia
Pasten, Hector
author_facet Garcia-Fritz, Natalia
Pasten, Hector
contents We prove a completely explicit and effective upper bound for the Néron--Tate height of rational points of curves of genus at least $2$ over number fields, provided that they have enough automorphisms with respect to the Mordell--Weil rank of their jacobian. Our arguments build on Arakelov theory for arithmetic surfaces. Our bounds are practical, and we illustrate this by explicitly computing the rational points of a certain genus $2$ curve whose jacobian has Mordell--Weil rank $2$.
format Preprint
id arxiv_https___arxiv_org_abs_2503_10443
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Effective Mordell for curves with enough automorphisms
Garcia-Fritz, Natalia
Pasten, Hector
Number Theory
Primary: 14G05, Secondary: 14G40, 11G50
We prove a completely explicit and effective upper bound for the Néron--Tate height of rational points of curves of genus at least $2$ over number fields, provided that they have enough automorphisms with respect to the Mordell--Weil rank of their jacobian. Our arguments build on Arakelov theory for arithmetic surfaces. Our bounds are practical, and we illustrate this by explicitly computing the rational points of a certain genus $2$ curve whose jacobian has Mordell--Weil rank $2$.
title Effective Mordell for curves with enough automorphisms
topic Number Theory
Primary: 14G05, Secondary: 14G40, 11G50
url https://arxiv.org/abs/2503.10443