#18453: Infinite affine crystals should use extended weight lattice
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       Reporter:  bump               |        Owner:
           Type:  defect             |       Status:  new
       Priority:  major              |    Milestone:  sage-6.8
      Component:  combinatorics      |   Resolution:
       Keywords:  crystals, days65   |    Merged in:
        Authors:  Ben Salisbury,     |    Reviewers:
  Anne Schilling, Travis Scrimshaw   |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:                     |  3b3c0b2d15289a8c4a5c5c25ad2984114a856916
  public/crystal/18453               |     Stopgaps:
   Dependencies:                     |
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Comment (by aschilling):

 > Right...I'm now fairly convinced it will be best to simply store the
 weight as an attribute of the elements. This might also result in a
 speedup as we wouldn't need to (re)compute the weight everytime we call
 `phi()`.

 Ben and I found a different way which fixes the problem. A new commit will
 follow soon!

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Ticket URL: <http://trac.sagemath.org/ticket/18453#comment:27>
Sage <http://www.sagemath.org>
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