#6384: [with patch, positive review] elliptic curve -- isogeny function is not
robust -- it doesn't check validity of its input
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 Reporter:  was                        |        Owner:  shumow                  
     
     Type:  defect                     |       Status:  closed                  
     
 Priority:  major                      |    Milestone:  sage-4.1.2              
     
Component:  elliptic curves            |   Resolution:  fixed                   
     
 Keywords:  elliptic curves, isogeny,  |     Reviewer:  John Cremona, Minh Van 
Nguyen
   Author:  Chris Wuthrich             |       Merged:  Sage 4.1.2.alpha0       
     
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Comment(by cremona):

 See #6886 for an undesirable side-effect of the checking introduced here!

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6384#comment:20>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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