Isogenes des courbes elliptiques definies sur les rationnels, by Abderrahmane Nitaj

We give an explicit model for all elliptic curves defined over $\QQ$ with a non trivial torsion rational point and for all their isogenous curves associated to isogenies with cyclic kernels consisting of rational points.

Abderrahmane Nitaj <nitaj@math.uni-sb.de>