Isogeny of elliptic curves
= Isogeny of elliptic curves
{wiki=Isogeny}
An isogeny is a nonconstant morphism of elliptic curves preserving their identity points. It is a finite surjective group homomorphism.
= Isogeny of elliptic curves
{wiki=Isogeny}
An isogeny is a nonconstant morphism of elliptic curves preserving their identity points. It is a finite surjective group homomorphism.