Right triangles with algebraic sides and elliptic curves over number fields

Given any positive integer n, we prove the existence of infinitely many right triangles with area n and side lengths in certain number fields. This generalizes the famous congruent number problem. The proof allows the explicit construction of these triangles; for this purpose we find for any positiv...

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Detalles Bibliográficos
Autores: Girondo Sirvent, Ernesto, González Díez, Gabino, González Jiménez, Enrique, Steuding, R., Steuding, J.
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/711109
Acceso en línea:http://hdl.handle.net/10486/711109
https://dx.doi.org/10.2478/s12175-009-0126-3
Access Level:acceso abierto
Palabra clave:Congruent Number Problem
Elliptic Curves
Number Fields
Matemáticas
Descripción
Sumario:Given any positive integer n, we prove the existence of infinitely many right triangles with area n and side lengths in certain number fields. This generalizes the famous congruent number problem. The proof allows the explicit construction of these triangles; for this purpose we find for any positive integer n an explicit cubic number field ℚ(λ) (depending on n) and an explicit point P λ of infinite order in the Mordell-Weil group of the elliptic curve Y 2 = X 3 - n 2 X over ℚ(λ). © 2009 © Versita Warsaw and Springer-Verlag Berlin Heidelberg