#14502: Improvements of hyperbolicity procedures
---------------------------------+------------------------------------------
       Reporter:  dcoudert       |         Owner:  jason, ncohen, rlm
           Type:  enhancement    |        Status:  needs_work        
       Priority:  major          |     Milestone:  sage-5.10         
      Component:  graph theory   |    Resolution:                    
       Keywords:                 |   Work issues:                    
Report Upstream:  N/A            |     Reviewers:                    
        Authors:  David Coudert  |     Merged in:                    
   Dependencies:                 |      Stopgaps:                    
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Comment (by dcoudert):

 Bloody hell, the Petersen!

 The {{{__hyperbolicity__}}} method was implicitly assuming that delta(G)>0
 since graphs such that delta(G)=0 are tested before. But with 'dom' the
 situation may happen. I have added what is needed to prevent such problem
 (also with cuts+).

 Should be better now.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14502#comment:16>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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