i1 : R = QQ[x,y,z]/ideal(x^8-z^6-y^2*z^4-z^3); |
i2 : time R' = integralClosure(R, Verbosity => 2)
[jacobian time 0 sec #minors 3]
integral closure nvars 3 numgens 1 is S2 codim 1 codimJ 2
[step 0:
radical (use decompose) .009795 seconds
idlizer1: .079529 seconds
idlizer2: .029598 seconds
minpres: .019657 seconds
time .158109 sec #fractions 4]
[step 1:
radical (use decompose) .009545 seconds
idlizer1: .009514 seconds
idlizer2: .057222 seconds
minpres: .098855 seconds
time .204067 sec #fractions 4]
[step 2:
radical (use decompose) .009904 seconds
idlizer1: .019712 seconds
idlizer2: .059423 seconds
minpres: .089434 seconds
time .208085 sec #fractions 5]
[step 3:
radical (use decompose) 0 seconds
idlizer1: .019725 seconds
idlizer2: .07931 seconds
minpres: .069456 seconds
time .297559 sec #fractions 5]
[step 4:
radical (use decompose) .00989 seconds
idlizer1: .099246 seconds
idlizer2: .228062 seconds
minpres: .029659 seconds
time .416306 sec #fractions 5]
[step 5:
radical (use decompose) .009942 seconds
idlizer1: .029594 seconds
time .049329 sec #fractions 5]
-- used 1.34313 seconds
o2 = R'
o2 : QuotientRing
|
i3 : trim ideal R'
3 2 2 2 4 4
o3 = ideal (w z - x , w x - w , w x - y z - z - z, w x - w z,
4,0 4,0 1,1 1,1 4,0 1,1
------------------------------------------------------------------------
2 2 2 3 2 3 2 3 2 4 2 2 4 2
w w - x y z - x z - x , w + w x y - x*y z - x*y z - 2x*y z
4,0 1,1 4,0 4,0
------------------------------------------------------------------------
3 3 2 6 2 6 2
- x*z - x, w x - w + x y + x z )
4,0 1,1
o3 : Ideal of QQ[w , w , x, y, z]
4,0 1,1
|
i4 : icFractions R
3 2 2 4
x y z + z + z
o4 = {--, -------------, x, y, z}
z x
o4 : List
|