#11936: image_type of galois_representation of EllipticCurve hangs on first call
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Reporter: dkrenn | Owner: cremona
Type: defect | Status: new
Priority: minor | Milestone: sage-4.7.3
Component: elliptic curves | Keywords: ellipitc curve,
galois_representation, image_type, kash
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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In gal_reps.py we have
{{{
sage:
EllipticCurve([1,-1,0,-107,-379]).galois_representation().image_type(7)
# long time
'The image is a group of order 36.'
}}}
as doctest. I always get a timeout in a doctest with -long. I tried the
command in a sage shell, but no result within one day, so I interrupted
with `Ctrl+C` and got the following:
{{{
^CInterrupting Kash...
'The image is a group of order 36.'
}}}
i.e., the correct result. After trying the command again, I got the result
without hanging within a short time.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11936>
Sage <http://www.sagemath.org>
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