Supersingular Elliptic Curves

Ariel Pacetti on Sat, 22 Oct 2005 06:06:45 +0200

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Supersingular Elliptic Curves

To: pari-users@list.cr.yp.to
Subject: Supersingular Elliptic Curves
From: Ariel Pacetti <apacetti@math.utexas.edu>
Date: Fri, 21 Oct 2005 23:04:36 -0500 (CDT)
Delivery-date: Sat, 22 Oct 2005 06:06:45 +0200
Mailing-list: contact pari-users-help@list.cr.yp.to; run by ezmlm

Is there a routine in GP to compute the Hasse invariant of an ellipticcurve in F_p? I tried to compute the number of points of order p, or thej-invariant, but didn't succed. (y^2+y = x^3 should answer 0 for p=2).

Bests,

Ariel

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