" For consistency, what about adding a style 'coroots' for
" weight_multiplicities() too?
After the patch #13461 you can do the following:
sage: A2=WeylCharacterRing("A2",style="coroots")
sage: rep = A2(1,0)
sage: a2 = WeightRing(A2)
sage: a2(rep)
a2(0,-1) + a2(-1,1) + a2(1,0)
However the inte
Hi all,
Particle physicists love coroot style (we call it 'Dynkin labels'), so the
possibility of using it for indicating representations in a
WeylCharacterRing is great!
For consistency, what about adding a style='coroots' for
weight_multiplicities() too?
It would behave as simple as:
Hi Nicolas,
On Thursday, October 4, 2012 12:30:41 PM UTC+2, Nicolas M. Thiery wrote:
>
> > > May I open a ticket in trac?
>
> Please! I'd be happy to review a patch if you would be willing to
> write one.
>
I will put my hands on it, then. This will be my first contribution to
Sage, so I woul
Hi Jesus,
On Wed, Oct 03, 2012 at 12:13:31PM +0200, Florent Hivert wrote:
> > When relabelling a Cartan type:
> >
> > sage: A3 = CartanType("A3")
> > sage: A3r = A3.relabel({1:2,2:3,3:1})
> >
> > one loses the cartan_matrix method, which is not implemented in
> > [...]/combinat/
