#11578: elliptic curve isogeny: error in documentation and a comment
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Reporter: was | Owner: tbd
Type: PLEASE CHANGE | Status: new
Priority: major | Milestone: sage-4.7.2
Component: PLEASE CHANGE | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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The isogeny code claims to check whether the input is valid, but it does
not. The algorithm checks only that the polynomial defines a subset of
the n-torsion, not that it describes a *subgroup*. This tiny patches
fixes the documentation to not blatantly lie.
Also, there is a "vast" that should be "fast" in a comment.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11578>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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