#12803: quotient of ideals throws up Singular bug
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Reporter: mariah | Owner: malb
Type: defect | Status: new
Priority: major | Milestone: sage-6.4
Component: commutative algebra | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: Fixed upstream, in a later | Work issues:
stable release. | Commit:
Branch: | Stopgaps:
Dependencies: |
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Comment (by jakobkroeker):
the bug above is fixed by upgrade to Singular 3.1.7
but there is at least another one (fixed in 4.0.1, see ticket #17254):
{{{
R.<xe,xv> = ZZ[]
J = Ideal(4*xv^3+3*xv^2, 3*xe*xv^2+xe-2*xv);
I = Ideal(-3, -3*xv-1, -3);
I2 = Ideal(-3, -3*xv-1);
assert( I == I2 )
Q1 = J.quotient(I) # wrong
Q2 = J.quotient(I2)
assert( Q1 == Q2 ) # fails
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/12803#comment:8>
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