#16598: Useless new classes and a replacement for _check_pbd
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       Reporter:  ncohen             |        Owner:
           Type:  enhancement        |       Status:  needs_work
       Priority:  major              |    Milestone:  sage-6.3
      Component:  combinatorial      |   Resolution:
  designs                            |    Merged in:
       Keywords:                     |    Reviewers:
        Authors:  Nathann Cohen      |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:  u/ncohen/16598     |  cdaf1e2e834f3895d1fb096a139446bf8620d319
   Dependencies:  #16553             |     Stopgaps:
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Comment (by vdelecroix):

 Note that a solution for computing the automorphism group is as follows:
  1. compute the automorphism group of the partition into groups (the
 generators can be provided by hand, and I can provide a function for it)
  2. compute the automorphism group of the block design (ie forget about
 the groups)
  3. make the intersection

 I think that it is not that bad in terms of efficiency.

 Vincent

--
Ticket URL: <http://trac.sagemath.org/ticket/16598#comment:5>
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