#1867: [with patch; needs review] -- factoring multivariate polynomials over
finite fields is broken in Singular
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Reporter: was | Owner: malb
Type: defect | Status: new
Priority: major | Milestone: sage-3.4.1
Component: commutative algebra | Resolution:
Keywords: |
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Comment (by was):
NOTE (from Noam Elkies):
Maxima can factor multivariate polynomials mod p. However it sometimes
will fail, as the example below illustrates.
{{{
sage: R.<x,y> = GF(5)[]
sage: f = 2*x^2*y^2 + 2*y^4 + x^3 - 2*x^2*y + x*y^2 + y^3 + x^2 - x*y -
y^2 - 2*x - 2*y - 2
sage: maxima.eval('modulus:5')
sage: maxima(f).factor()
Not enough choices for substitution.
}}}
This is a known issue.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/1867#comment:6>
Sage <http://sagemath.org/>
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