#6588: Categories for root systems and many misc improvements
--------------------------------------------------------+-------------------
Reporter: nthiery | Owner:
mhansen
Type: enhancement | Status:
needs_review
Priority: major | Milestone:
sage-5.0
Component: combinatorics | Keywords: root
systems, categories
Work_issues: | Upstream: N/A
Reviewer: Anne Schilling, Mark Shimozono, PatchBot | Author:
Nicolas M. Thiéry
Merged: | Dependencies:
#10817
--------------------------------------------------------+-------------------
Comment(by nthiery):
Replying to [comment:18 aschilling]:
> But these are not categories, they are classes. In your case, a
cateogory is in
> /sage/combinat/root_systems/
Yes: unlike for crystals, and like for symmetric functions (well for
NCSF actually; the categorification of symmetric functions is yet to
be done), I want to keep the categories close to the classes. As I
said, it's borderline, but it feels better to me this way.
> How about self.fundamental_weights(extended = True) with default
extended = False?
Well, since it's an abuse, and one that we might want to get rid of,
I'd rather not abuse yet another function. Unless you have a natural
use case for this notation? (for the extended weight lattice, that's
just self.basis()).
> Sorry, I forgot to push.
Given how many times I played that gag to you, I am not going
to throw the first rock :-)
> It should be there now.
Yes, thanks! I have folded together all patches and posted them
here. I also did the reindentation and renaming *_lattice_realization
-> *_lattice_realizations. On my side, the patch is good to go.
Cheers,
Nicolas
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6588#comment:21>
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