#7262: Have multiplcation_by_m() return an EllipticCurveIsogeny object
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Reporter: wuthrich | Owner: davidloeffler
Type: defect | Status: needs_review
Priority: minor | Milestone: sage-4.3.1
Component: elliptic curves | Keywords: elliptic curves, isogeny,
Author: Craig Citro | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by cremona):
I have read through the patch, but not started testing yet. I think this
is a summary of what it contains:
1. A lot of cosmetic changes to the docstrings
2. Several minor changes such as "is None" for "None == "
3. The new ability to construct an isogeny with the maps in hand, not
just the kernel poly.
4. A new function in ell_generic which creates a multiplcation-by-m
map as an isogeny (in the separable case) by using the existing code to
get the maps and then calling the new constructor.
Have I missed anything? I do think that this is a good start, and will go
on to test.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7262#comment:8>
Sage <http://www.sagemath.org>
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