#13672: resultant over GF(q)[t][x] is plain wrong!!!
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Reporter: zimmerma | Owner: malb
Type: defect | Status: new
Priority: blocker | Milestone: sage-5.5
Component: commutative algebra | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by zimmerma):
Martin, indeed the documentation says that {{{x}}} is special:
{{{
sage: f.resultant?
...
We can also compute resultants over univariate and multivariate
polynomial rings, provided that PARI's variable ordering
requirements are respected. Usually, your resultants will work if
you always ask for them in the variable "x":
}}}
In the contrary it seems that using {{{x}}} as main variable gives wrong
resultants...
Paul
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13672#comment:4>
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