Changes between Version 19 and Version 20 of Ticket #6588


Ignore:
Timestamp:
03/12/12 22:22:37 (8 years ago)
Author:
nthiery
Comment:

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  • Ticket #6588

    • Property Summary changed from Categories for root systems to Categories for root systems and many misc improvements
  • Ticket #6588 – Description

    v19 v20  
    11New Features:
    2 
     2{{{
    33- Extended weight lattice/space for affine types
    44- coxeter_matrix and coxeter_diagram (for crystallographic types)
     
    1212- Enumerated set for grassmannian elements, and is_grasmmannian test
    1313- Added method register_as_conversion to morphisms
     14}}}
    1415
    1516Refactoring:
    16 
     17{{{
    1718- RootLatticeRealization and WeightLatticeRealization are now categories
    1819- Use abstract_methods where appropriate
     
    2223  sense for, e.g., the weight lattice).
    2324- Moved the implementation of associated_coroot in root_lattice_realization to root_space where it belongs
     25}}}
    2426
    2527Tests and bug fixes:
    26 
     28{{{
    2729- 100% doctests on sage.combinat.root_system, except for weyl_group and weyl_characters
    2830- 100% doctests on CoxeterGroups
     
    3840- Fixed a SL vs GL glitch when obtaining simple roots for reducible cartan types revealed by the above
    3941- Fixed imports (extraneous ones, and a missing one reported by M. Shimozono and others)
     42}}}
    4043
     44Apply: [attachment:trac_6588-categories-root_systems-nt.patch]