#8380: Implement an interface to GAP3
---------------------------------------------------------+------------------
Reporter: saliola | Owner:
Franco Saliola
Type: enhancement | Status:
closed
Priority: major | Milestone:
sage-4.4.4
Component: interfaces | Resolution:
fixed
Keywords: gap3, chevie, specht, gap, sage-combinat | Work_issues:
Upstream: N/A | Reviewer:
Burcin Erocal
Author: Franco Saliola | Merged:
sage-4.4.4.alpha1
Dependencies: |
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Description changed by nthiery:
Old description:
> It would be great to have an interface to GAP3 so that one can use GAP3
> packages that have not been ported to GAP4. Of particular interest are
> the packages (sage-devel occasionally receives questions about
> integrating these packages):
>
> * CHEVIE: Finite reflection groups and their root systems, braid groups,
> Iwahori-Hecke algebras, and Kazhdan-Lusztig polynomials.
> * Specht: Specht: Decomposition matrices for the Hecke algebras of type
> A.
>
> For a list of other GAP3 packages, check out
>
> [http://www.gap-system.org/Gap3/Packages3/packages.html]
>
> To be clear, I am not suggesting distributing GAP3 with Sage. This would
> be just an to GAP3.
New description:
It would be great to have an interface to GAP3 so that one can use GAP3
packages that have not been ported to GAP4. Of particular interest are the
packages (sage-devel occasionally receives questions about integrating
these packages):
* CHEVIE: Finite reflection groups and their root systems, braid groups,
Iwahori-Hecke algebras, and Kazhdan-Lusztig polynomials.
* Specht: Specht: Decomposition matrices for the Hecke algebras of type
A.
For a list of other GAP3 packages, check out
[http://www.gap-system.org/Gap3/Packages3/packages.html]
To use the interface implemented in this ticket, you need to have GAP3
installed on your machine.
To this end, you can use Jean Michel's GAP3 distribution
[gap3-jm4.tar.gz|http://www.math.jussieu.fr/~jmichel/gap3/gap3-jm4.tar.gz]
([instructions|http://www.math.jussieu.fr/~jmichel/gap3]), which
includes a bunch of GAP3 packages (including Chevie, Specht, ...),
A simple alternative is to install the following Sage package
[gap3-jm2.spkg|http://sage.math.washington.edu/home/nthiery/gap3-jm2.spkg],
based on a slightly outdated version of the above. Just download it,
and use:
{{{
sage -i gap3-jm2.spkg
}}}
--
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8380#comment:24>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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