This is now https://trac.sagemath.org/ticket/20973.
Andrew
On Wednesday, 6 July 2016 22:34:00 UTC+1, Travis Scrimshaw wrote:
>
> We also should determine how we want to distinguish between (and input)
> A_{+oo} and A_{oo}, i.e., index sets of NN and ZZ. In fact, the only
> place where I really see this fundamentally breaking is the CartanMatrix
> and DynkinDiagram. All of the root/weight lattice stuff should work since
> those are based around Family and CombinatorialFreeModule (although
> roots() and friends probably won't work so well).
>
> I don't really see a problem with just implementing a subclass of
> CartanType_abstract for A_{+oo}/A_{oo} and allowing the methods to just
> raise NotImplementedError's.
>
> Best,
> Travis
>
>
--
You received this message because you are subscribed to the Google Groups
"sage-combinat-devel" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to sage-combinat-devel+unsubscr...@googlegroups.com.
To post to this group, send email to sage-combinat-devel@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-combinat-devel.
For more options, visit https://groups.google.com/d/optout.
