Changes between Version 6 and Version 9 of Ticket #5794


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Timestamp:
05/01/09 16:25:58 (13 years ago)
Author:
bump
Comment:

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  • Ticket #5794

    • Property Status changed from new to assigned
    • Property Owner changed from joyner to bump
    • Property Summary changed from [with patch, needs review] G2 and F4 branching rules to [with patch, needs review] exceptional and reducible type branching rules
  • Ticket #5794 – Description

    v6 v9  
    1 The first patch implements branching rules to the following subgroups of Lie groups:
     1The patch {{{trac_5794-revised.patch}}} supercedes
     2the other two patches. It applies cleanly on sage-3.4.2.rc0.
     3Patch summary:
    24
    35{{{
    4 G2 => A1 (along short root)
    5 G2 => A2
    6 B3 => G2
    7 D4 => G2
     6
     7- new branching rules, including exceptional and reducible types
     8- all new rules have tests but slower F4 tests are # long time
     9- bugfix: reducible root system methods simple_roots etc. return families
     10- Cartan Types B, C and D allow low rank cases such as D2, B1 and C1
     11- WeylCharacterRings: new style="coroots" option gives output similar to published tables
     12- WeylCharacterRings: methods for rank, simple_roots etc.
     13- doc revision in weyl_characters.py
    814}}}
    915
    10 The second patch implements branching rules:
    11 
    12 {{{
    13 F4 => B3
    14 F4 => C3
    15 F4 => B4
    16 }}}
    17 
    18 They go on top of the following patches:
    19 
    20 {{{
    21 trac_5721-a.patch
    22 trac_5721-b.patch
    23 trac_5751.patch
    24 }}}
     16This patch contains #5831. If this patch is merged, that ticket may be closed.