Changes between Version 18 and Version 19 of Ticket #15703


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Timestamp:
04/13/14 15:56:53 (7 years ago)
Author:
jipilab
Comment:

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  • Ticket #15703 – Description

    v18 v19  
    2727     diagram indeed defines a proper root system. See in particular
    2828     cartan_matrix.is_generalized_cartan_matrix.
     29   - adapt column() and row() method to give the labels in the base ring
    2930
    3031  * Update CartanMatrix
     
    5556   - Rename the weyl_group method to reflection_group, with an alias
    5657     from weyl_group; update the setting of the category.
     58   - Define a new projection "transversal" to visualise root systems (and find a right name for it)
    5759   - Long run: stuff specific to the crystallographic case, starting
    5860     with this weyl_group method, should go in
     
    6365 * RootSpace (for this ticket or some follow up):
    6466   - Define the inner product
     67   - adapt the is_positive_root to make it work for any base ring
    6568   - Signature of the bilinear form
    6669
     
    7578     corresponding Gap group. Currently one has to make a choice
    7679     between MatrixGroup_generic and MatrixGroup_gap.
     80
     81 * Plotting:
     82   - add a family_of_points method in the projections to be used by the "transversal projection"
    7783
    7884 * Update WeylGroups: