 Isogeny of elliptic curves (source code)

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= Isogeny of elliptic curves

= Isogenies of elliptic curves
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= Elliptic isogeny
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An <isogeny> between <elliptic curves> is a nonconstant morphism preserving their group identities; it is finite and surjective with finite kernel.

An isogeny is a nonconstant morphism of elliptic curves preserving their identity points. It is a finite surjective group homomorphism.

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