#19391: Move invariant_generators to libsingular
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Reporter: mmarco | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.10
Component: group theory | Resolution:
Keywords: | Merged in:
Authors: Miguel Marco | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/mmarco/invariants | 6a025ba30f71b0fa6da03d526ab0879a4df6d355
Dependencies: | Stopgaps:
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Comment (by mmarco):
Ok, now it computes the reynolds operator before passing it to singular.
I am now working on the modular case. I having trouble getting the output
of invariant_ring from libsingular. The singular command is supposed to
return three matrices, but calling it through libsingular only gets the
first one:
{{{
sage: from sage.libs.singular.function import singular_function
sage: import sage.libs.singular.function_factory
sage: sage.libs.singular.function_factory.lib('finvar.lib')
sage: inring = singular_function('invariant_ring')
sage: F=FiniteField(2)
sage: R.<x,y> = F[]
sage: m1 = matrix(R, 2, [0,1,1,0])
sage: inring(m1)
[x + y x*y]
}}}
Any clue about how to get around this?
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Ticket URL: <http://trac.sagemath.org/ticket/19391#comment:6>
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