Rational points on hyperelliptic Atkin-Lehner quotients of modular curves and their coverings
Preprint
Abstract
We complete the computation of all $\mathbb{Q}$-rational points on all the $64$ maximal Atkin-Lehner quotients $X_0(N)^*$ such that the quotient is hyperelliptic. To achieve this, we use a combination of various methods, namely the classical Chabauty--Coleman, elliptic curve Chabauty, quadratic Chabauty, and the bielliptic quadratic Chabauty method combined with the Mordell-Weil sieve. Additionally, for square-free levels $N$, we classify all $\mathbb{Q}$-rational points as cusps, CM points (including their CM field and $j$-invariants) and exceptional ones. We further indicate how to use this to compute the $\mathbb{Q}$-rational points on all of their modular coverings.
Keywords
All Related Versions
This publication has 24 references indexed in Scilit:
- Rational points onExpositiones Mathematicae, 2023
- Computing models for quotients of modular curvesResearch in Number Theory, 2021
- Serre’s conjecture and its consequencesJapanese Journal of Mathematics, 2010
- The l-component of the unipotent Albanese mapMathematische Annalen, 2007
- Computing Special Values of MotivicL-FunctionsExperimental Mathematics, 2004
- Abelian Varieties over Q and Modular Forms2004
- Rational and Elliptic Parametrizations ofQ-CurvesJournal of Number Theory, 1998
- On p-adic height pairings1993
- On the number of Q-isomorphism classes of elliptic curves in each Q-isogeny classJournal of Number Theory, 1982
- Modular curves and the Eisenstein idealPublications mathématiques de l'IHÉS, 1977