#4513: [with patch, needs work] Action of MatrixGroup on a MPolynomialRing
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Reporter: SimonKing | Owner: SimonKing
Type: enhancement | Status: new
Priority: major | Milestone: sage-3.2.1
Component: commutative algebra | Resolution:
Keywords: matrix group, action, polynomial ring |
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Changes (by was):
* summary: [with patch, needs review] Action of MatrixGroup on a
MPolynomialRing => [with patch, needs work]
Action of MatrixGroup on a MPolynomialRing
Comment:
REFEREE REPORT:
Check this out:
{{{
sage: R.<x,y> = GF(3)[]
sage: M=Matrix(GF(3),[[1,2],[1,1]])
sage: M2=Matrix(GF(3),[[1,2],[1,0]])
sage: G=MatrixGroup([M, M2])
sage: (G.0*G.1)(p)
-x^2*y + x*y^2 - y^3
sage: G.0(G.1(p))
x^2*y + x*y^2 + y^3
}}}
Oops, your *left action* -- which it better be if you use that notation --
ain't a left action! Oops
-- William
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4513#comment:11>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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