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 4.7.1 as I can't compile from source. I am
looking forward to the release of sage 5.0:)
I am right in thinking that run_snake or it is runsnake?) is available
from 4.7.2 onwards?
> Does this start to be acceptable?
It looks like it is now faster than gap. I'll have to wait until I
play with it properly in sage 5 to see how it behaves for larger
tableaux.
> > This was actually the first step in the calculations that I wanted to
> > do, which involved taking certain sums of these idempotents reducing
> > the coefficients modulo an ideal and seeing what happened to them. To
> > do this I wanted to look the Hecke over the field of fractions of Z[x,
> > \xi], where \xi is a primitive root of unity.
>
> So you probably want to take as ground field:
>
> sage: CyclotomicField(5)['xi'].fraction_field()
I think that I want
sage: xi=e**(2*pi*i/5);
R=FractionField(PolynomialRing(ZZ[xi],'x'))
Thank you again!
Andrew
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