Changes between Version 9 and Version 12 of Ticket #5794


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Timestamp:
05/12/09 15:27:27 (13 years ago)
Author:
bump
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  • Ticket #5794

    • Property Milestone changed from sage-combinat to sage-4.0
  • Ticket #5794 – Description

    v9 v12  
    1515
    1616This patch contains #5831. If this patch is merged, that ticket may be closed.
     17
     18The patch trac_5794-continued.patch goes on top of trac_5794-revised.patch. Together, the two patches
     19give complete coverage of branching rules from
     20classical root systems to maximal subgroups.
     21
     22Highlights of the second patch:
     23
     24{{{
     25New WeylCharacter methods is_reducible and frobenius_schur_indicator
     26Revised tensor rule handles all classical Cartan types
     27powerful new branching_rule_from_plethysm handles unusual cases
     28doc revision
     29}}}
     30
     31The file at
     32http://sporadic.stanford.edu/bump/branch.sage contains additional tests demonstrating every branching rule in Patera and McKay's book of tables for Cartan types A,B,C,D. This verifies the completeness of the patch for nonexceptional types.