#11548: Basic implementation of Harley's point counting for elliptic curve.
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Reporter: jpflori
| Owner: cremona
Type: enhancement
| Status: new
Priority: major
| Milestone: sage-5.4
Component: elliptic curves
| Resolution:
Keywords: point counting, satoh, elliptic curve, canonical lift, robert
harley | Work issues:
Report Upstream: N/A
| Reviewers:
Authors: Jean-Pierre Flori
| Merged in:
Dependencies:
| Stopgaps:
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Comment (by jpflori):
The above timing is indeed wrong. Bill reports
{{{
? a=ffgen(ffinit(2,1024),'a);ellffinit([1,0,0,0,a],a,1);
? ##
*** last result computed in 11,482 ms.
}}}
And I get similar results on my computer.
And indeed the trace looks a little too large for smtg over F,,2,,^50^, so
I badly used the library function from gp, not sure how to do this
properly though.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11548#comment:4>
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