Almost all elliptic curves are Serre curves

Jones, Nathan

doi:10.1090/S0002-9947-09-04804-1

Almost all elliptic curves are Serre curves
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Trans. Amer. Math. Soc. 362 (2010), 1547-1570 Request permission

Abstract:

Using a multidimensional large sieve inequality, we obtain a bound for the mean-square error in the Chebotarev theorem for division fields of elliptic curves that is as strong as what is implied by the Generalized Riemann Hypothesis. As an application we prove that, according to height, almost all elliptic curves are Serre curves, where a Serre curve is an elliptic curve whose torsion subgroup, roughly speaking, has as much Galois symmetry as possible.

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