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Discriminants of Complex Multiplication Fields of Elliptic Curves over Finite Fields
Published online by Cambridge University Press: 20 November 2018
Abstract
We show that, for most of the elliptic curves $\text{E}$ over a prime finite field
${{\mathbb{F}}_{p}}$ of
$p$ elements, the discriminant
$D\left( E \right)$ of the quadratic number field containing the endomorphism ring of
$\text{E}$ over
${{\mathbb{F}}_{p}}$ is sufficiently large. We also obtain an asymptotic formula for the number of distinct quadratic number fields generated by the endomorphism rings of all elliptic curves over
${{\mathbb{F}}_{p}}$.
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- Copyright © Canadian Mathematical Society 2007
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