#19391: Move invariant_generators to libsingular
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Reporter: mmarco | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.10
Component: group theory | Keywords:
Merged in: | Authors: Miguel Marco
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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This patch moves the .invariant_generators() method of finite matrix
groups to libsingular, which simplifies much the code.
It also adds the possibility of defining the ring in which the result
should be:
{{{
sage: m1 = matrix(QQ, [[0, -1], [1, 0]])
sage: G = MatrixGroup([m1])
sage: G.invariant_generators()
[x0^2 + x1^2, x0^4 + x1^4, x0^3*x1 - x0*x1^3]
sage: R.<x,y> = QQ[]
sage: G.invariant_generators(R)
[x^2 + y^2, x^4 + y^4, x^3*y - x*y^3]
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/19391>
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