#7575: EllipticCurve.gens: height bounds not handled well in two_descent
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Reporter: rlm | Owner: cremona
Type: defect | Status: needs_info
Priority: major | Milestone: sage-4.3.1
Component: elliptic curves | Keywords:
Work_issues: | Author:
Upstream: N/A | Reviewer:
Merged: |
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Changes (by rlm):
* status: new => needs_info
Comment:
With the patch `trac_7575-heegner_index_example.patch` applied on top of
(sage-4.3 plus) #7576 and #7819, I get the following:
{{{
sage: E = EllipticCurve('123a1')
sage: E.prove_BSD(verbosity=2)
p = 2: true by 2-descent
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call
last)
...<SNIP>...
/Users/rlmill/sage-4.3/local/lib/python2.6/site-
packages/sage/libs/mwrank/interface.pyc in gens(self)
310 """
311 self.saturate()
--> 312 return
eval(self.__two_descent_data().getbasis().replace(":",","))
313
314 def certain(self):
RuntimeError:
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7575#comment:1>
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