#11187: Implementation of finite reflection groups
-------------------------------------+-------------------------------------
       Reporter:  stumpc5            |        Owner:  tbd
           Type:  enhancement        |       Status:  needs_work
       Priority:  major              |    Milestone:  sage-7.2
      Component:  combinatorics      |   Resolution:
       Keywords:  reflection group,  |    Merged in:
  days49, days 64.5                  |    Reviewers:
        Authors:  Christian Stump    |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:                     |  1b798a72cdd02cfa90c59ec0f9dd555b8b06e33a
  u/vripoll/11187-new                |     Stopgaps:
   Dependencies:  #20107             |
-------------------------------------+-------------------------------------
Changes (by stumpc5):

 * commit:  48835b7db7daaf22eb903f146140d06b44dda872 =>
     1b798a72cdd02cfa90c59ec0f9dd555b8b06e33a


Comment:

 For the record: as discussed last night, the first goal would be to
 separate the category stuff into its own ticket (@tscim is working on
 this), and then to get the present version well documented, tested, and
 finished. Only after this work is done, we will start improving stuff and
 add functionality.

 To this end, we have to:
 * get the category stuff right
 * test properly that reducible groups work as desired
 * test properly that the labelling system of
 simples/hyperplanes/reflections works properly
 * test that the assumptions on how we obtain the data from chevie is
 correct (one example here is that the code tries to get n simple
 reflections, N* distinguished reflections, and then the remaining (N-N*)
 other reflections when listing all reflections. This has to be rechecked,
 but there are plenty of more similar examples.
 ----
 New commits:
 
||[http://git.sagemath.org/sage.git/commit/?id=e75f1a27cefdd5b053feb34886a3f2e7fec7f613
 e75f1a2]||{{{Updated TODO list}}}||
 
||[http://git.sagemath.org/sage.git/commit/?id=1b798a72cdd02cfa90c59ec0f9dd555b8b06e33a
 1b798a7]||{{{Merge branch 'u/stumpc5/11187-new' of
 git://trac.sagemath.org/sage into t/11187/11187-new}}}||

--
Ticket URL: <http://trac.sagemath.org/ticket/11187#comment:139>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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