On 11/30/2007 03:13 AM, Mike Hansen wrote:
> Hi Dan,
> 
> I've been spending a bit of time with symmetric functions recently.
> In the near future, I'll be making a commit that adds support for
> Hall-Littlewood, Macdonald polynomials, and quasisymmetric functions.
> Other stuff that will need to be done are LLT polynomials, k-Schur
> functions, and noncommutative symmetric functions.

That sounds interesting. We are also planning support for symmetric 
functions in Aldor-Combinat, but haven't had the time to actually work 
on it.

> Also, there isn't any support for tree-like structures.  I think that
> implementing combinatorial species, while taking a fair amount of
> initial work, would be the best way to go about this.  I've started
> porting Aldor-Combinat over to Sage, but that's still in the early
> stages.

Mike, could you point me to your code? I actually wonder why you would 
reprogram it in Sage and not interfacing the aldor-combinat library?
Is there a problem with the license of the aldor compiler 
(aldor-combinat itself is GPL2).

(Sorry that I haven't been reading much on the Sage-devel list.)

Ralf Hemmecke


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