#18627: Fix the weight lattice realization of a tensor product of crystals
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       Reporter:  tscrim             |        Owner:  sage-combinat
           Type:  defect             |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.8
      Component:  combinatorics      |   Resolution:
       Keywords:  crystals, tensor   |    Merged in:
  product                            |    Reviewers:
        Authors:  Travis Scrimshaw   |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:                     |  aa5ba3452adb3489406eb202de1497c6f7d88ccb
  public/crystals/common_parent_weights_tensors-18627|     Stopgaps:
   Dependencies:                     |
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Changes (by tscrim):

 * status:  new => needs_review
 * commit:   => aa5ba3452adb3489406eb202de1497c6f7d88ccb
 * branch:   => public/crystals/common_parent_weights_tensors-18627


Comment:

 I overwrote some of the `weight_lattice_realizations` methods, in
 particular, the one for `TensorProductOfCrystals`. I also fixed some
 assumptions about the existence of the ambient space.
 ----
 New commits:
 
||[http://git.sagemath.org/sage.git/commit/?id=aa5ba3452adb3489406eb202de1497c6f7d88ccb
 aa5ba34]||{{{Better handling of some weight lattice realizations.}}}||

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Ticket URL: <http://trac.sagemath.org/ticket/18627#comment:1>
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