#11229: Rational maps attached to elliptic curve isogeny are incorrect
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Reporter: johanbosman | Owner: cremona
Type: defect | Status: new
Priority: major | Milestone: sage-4.7
Component: elliptic curves | Keywords: elliptic curves, isogeny
Author: Johan Bosman | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by cremona):
Replying to [comment:2 johanbosman]:
> Hi John,
>
> The only reason why I used a degree 1 isogeny in the example was to keep
the example simple; it goes wrong in more general cases as well.
>
> But I've already found in the code where it goes wrong. I will upload a
patch shortly.
>
Excellent!
I think there was a similar bug recently reported for isogenies -- could
you look for that to see if your patch corrects that too? I don't
remember the number.
> Johan
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11229#comment:3>
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