#8829: Saturation for MW-groups of elliptic curves over number fields.
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Reporter: robertwb | Owner: cremona
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.4
Component: elliptic curves | Resolution:
Keywords: saturation | Merged in:
Authors: Robert Bradshaw, | Reviewers: John Cremona
John Cremona | Work issues:
Report Upstream: N/A | Commit:
Branch: u/cremona/8829 | 0e1e35f624edb087d3fb1ddc21226fec7acfafad
Dependencies: #8828 | Stopgaps:
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Comment (by cremona):
Current branch works but more doctests and testing are needed; so not
ready for review yet.
I did a lot of rewriting of the main saturation routine, separating off
p-saturation and also allowing saturation to be done at just one prime.
This is a useful special case, since if you take the images of some
saturated points under a p-isogeny the images may not be p-saturated but
will still be saturated at all other primes.
The code for computing E(K) when K is quadratic and E is a base change has
been completely rewritten and will now work in many more cases (not just
when the coefficients of E are in Q).
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Ticket URL: <http://trac.sagemath.org/ticket/8829#comment:22>
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