#11010: Implementation of the SubwordComplex as defined by Knutson and Miller
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       Reporter:  stumpc5            |        Owner:  tbd
           Type:  enhancement        |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.10
      Component:  combinatorics      |   Resolution:
       Keywords:  subword complex,   |    Merged in:
  simplicial complex                 |    Reviewers:
        Authors:  Christian Stump    |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:  u/chapoton/11010   |  f4bc87fa3a884cfb45e9c90bd37c4d1f55c8d090
   Dependencies:                     |     Stopgaps:
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Comment (by stumpc5):

 Replying to [comment:56 stumpc5]:
 > * Do you know how I can get the list of (simple, positive, almost
 positive, all) roots of a root system when I only have the Weyl group
 {{{W}}} at hand? It seems that I have to build a root system from the
 Cartan type, though it seems more natural to have a method
 {{{WeylGroup.root_system}}} or at least {{{WeylGroup.cartan_matrix}}},
 wouldn't it?

 Ah, {{{WeylGroup.domain}}} does it...

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Ticket URL: <http://trac.sagemath.org/ticket/11010#comment:59>
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