#16456: Bug in descend_to method for elliptic curves
-------------------------------------+-------------------------------------
Reporter: cremona | Owner: cremona
Type: defect | Status: needs_work
Priority: major | Milestone: sage-6.3
Component: elliptic curves | Resolution:
Keywords: elliptic curve | Merged in:
base change | Reviewers: Peter Bruin
Authors: John Cremona | Work issues:
Report Upstream: N/A | Commit:
Branch: | 65d3404d1517a2c2005604c61582f163f0947c06
u/pbruin/16456-descend_to_bug | Stopgaps:
Dependencies: #16708 |
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Comment (by cremona):
Replying to [comment:16 pbruin]:
> Actually both the original answer and my "corrected" one in the doctest
changed by commit `bed05c5` are wrong; if I'm not mistaken, the correct
answer is
> {{{
> sage: K = QuadraticField(-5)
> sage: list(K.selmer_group_iterator((), 4))
> [1, 4, -1, -4]
> }}}
That is certainly correct. I will look at this and #16708 tomorrow.
--
Ticket URL: <http://trac.sagemath.org/ticket/16456#comment:17>
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