#10730: simon_two_descent -- reports points as being independent, but they are 
not
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   Reporter:  was            |       Owner:  davidloeffler
       Type:  defect         |      Status:  new          
   Priority:  minor          |   Milestone:  sage-4.6.2   
  Component:  number fields  |    Keywords:               
     Author:                 |    Upstream:  N/A          
   Reviewer:                 |      Merged:               
Work_issues:                 |  
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Comment(by nbruin):

 Incidentally, from a 2-(isogeny-)descent on E one can conclude that the
 rank is 0, so while the upper bound returned does not contradict the
 documentation, the code is not returning the appropriate bound.
 In Magma:
 > RankBound(EllipticCurve([1,a+1,a,a,0]));
 0
 > AnalyticRank(E);
 0 0.359929
 but you probably already knew that.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10730#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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