#18267: libgap for PermutationGroup
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Reporter: vdelecroix | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.7
Component: interfaces | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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As remarked in [http://ask.sagemath.org/question/26590/add-generator-to-a
-group-combine-generators-of-two-groups/ this question on
ask.sagemath.org] a lot of time is spent with pexpect when playing with
permutation groups.
In this ticket:
- we interface libgap permutation group so that the following works
{{{
sage: p1=libgap.eval("(1,2,3)")
sage: p2=libgap.eval("(3,4,5)")
sage: p1.sage()
(1,2,3)
sage: G=libgap.Group([p1,p2])
sage: G.sage()
Traceback (most recent call last):
...
NotImplementedError: cannot construct equivalent Sage object
}}}
- we check that interesting GAP functions such as `ClosureGroup`,
`AllBlocks`, are available from libgap
- we use them in `PermutationGroup` inplace of the current gap version
--
Ticket URL: <http://trac.sagemath.org/ticket/18267>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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