Images of isogeny classes on modular elliptic curves
arXiv:math/0407336
Abstract
Let K be a number field and E/K a modular elliptic curve, with modular parametrization defined over K. The purpose of this note is to study the images in E of classes of isogenous points in X_0(N).
LaTeX, 2 pages, to appear in Math. Res. Lett