#6581: Groebner basis not working over symbolic ring
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Reporter: rhinton | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-5.0
Component: commutative algebra | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Comment(by john_perry):
It works (initially) if you do this:
{{{
sage: J = P.ideal([f,g])
}}}
...but then you can't do anything with `J`. The characteristic isn't set
in `R2`. Curiously, I can still work with ideals in `R2`.
Likewise,
{{{
sage: Z7 = QuotientRing(ZZ,7*ZZ)
sage: Z7.characteristic()
...
NotImplementedError:
}}}
Wow. We should probably look at that one day. `;-)`
Anyway, do you know offhand why one needs the characteristic, but not the
other?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6581#comment:13>
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