#16985: Poset: Faster is_selfdual()
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       Reporter:  jmantysalo         |        Owner:
           Type:  enhancement        |       Status:  new
       Priority:  minor              |    Milestone:  sage-wishlist
      Component:  combinatorics      |   Resolution:
       Keywords:                     |    Merged in:
        Authors:                     |    Reviewers:
Report Upstream:  N/A                |  Work issues:
         Branch:                     |       Commit:
  u/jmantysalo/poset__faster_is_dual__|  
17f1b0f71b8cb537bbe0a1dbdf7d350c0dd845b6
   Dependencies:                     |     Stopgaps:
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Changes (by ncohen):

 * commit:   => 17f1b0f71b8cb537bbe0a1dbdf7d350c0dd845b6


Comment:

 Could you provide timings for the latest improvement you added ?

 Also: the code of `Poset.level_sets` is a call to `.hasse_diagram()`, so
 perhaps you should call that function instead.

 Nathann
 ----
 New commits:
 
||[http://git.sagemath.org/sage.git/commit/?id=17f1b0f71b8cb537bbe0a1dbdf7d350c0dd845b6
 17f1b0f]||{{{This patch adds two quick checks to is_selfdual(). When
 tested with}}}||

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Ticket URL: <http://trac.sagemath.org/ticket/16985#comment:3>
Sage <http://www.sagemath.org>
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