> If it's possible to make the base ring a LaurentPolynomialRing that
> may be more efficient than making it a rational function field.
> Presumably whether you can do this depends on whether you
> encounter denominators that are not powers of x.
Unfortunately, this is not possible and, to a larg
> I tried to do some computations with the existing Iwahori-Hecke
> algebra module inside sage earlier this year. I needed to work over
> the rational function field C(x), for an indeterminate x. In the end I
> gave up and went back to using some gap3 code that I have, which
> builds on chevie, be
On Sun, Feb 19, 2012 at 03:27:08PM -0800, Andrew Mathas wrote:
> It looks like this patch already has a positive review.
Yeah, thanks Florent! Feel free to double check the change to the
Iwahori-Hecke file.
> I'm also stuck in limbo with sage at the moment as I foolishly
> upgraded to macosx lio
Thanks Nicolas!
> This is now #12528. You are welcome to do a review of the small change
> in the Iwahori Hecke file (or more!).
It looks like this patch already has a positive review. I'm also stuck
in limbo with sage at the moment as I foolishly upgraded to macosx
lion, so I'm still using 4.7.
Hi Andrew,
On Thu, Feb 16, 2012 at 08:39:14PM -0800, Andrew Mathas wrote:
> OK, it looks like permutations might be innocent and the real culprit
> might be e rational functions as suggested by Dima.
I profiled the last calculation with run_snake:
sage: run_snake("prod( (L[k]-x**c)/(
In gmane.comp.mathematics.sage.combinat.devel, you wrote:
>
>> This is interesting; we should profile this. Can you give a precise
>> description of how you constructed the algebra, and a typical
>> calculation you wanted to run?
>>
>> Permutations are written in Cython, and should be rather fast.
> This is interesting; we should profile this. Can you give a precise
> description of how you constructed the algebra, and a typical
> calculation you wanted to run?
>
> Permutations are written in Cython, and should be rather fast. On the
> other hand, Weyl group elements could be slow (their ac
In gmane.comp.mathematics.sage.combinat.devel, you wrote:
> I tried to do some computations with the existing Iwahori-Hecke
> algebra module inside sage earlier this year. I needed to work over
> the rational function field C(x), for an indeterminate x. In the end I
> gave up and went back to using
> I tried to do some computations with the existing Iwahori-Hecke
> algebra module inside sage earlier this year. I needed to work over
> the rational function field C(x), for an indeterminate x. In the end I
> gave up and went back to using some gap3 code that I have, which
> builds on chevie, bec
I tried to do some computations with the existing Iwahori-Hecke
algebra module inside sage earlier this year. I needed to work over
the rational function field C(x), for an indeterminate x. In the end I
gave up and went back to using some gap3 code that I have, which
builds on chevie, because it wa
In gmane.comp.mathematics.sage.combinat.devel, you wrote:
> On Mon, Feb 13, 2012 at 09:14:17AM +0100, Christian Stump wrote:
>> for your attantion. http://arxiv.org/pdf/1201.5566v1.pdf
>>
>> If someone has the time to look into it: please, please report!
>
> I did not know Meinolf was doing
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