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 .000575801 sec #minors 3]
integral closure nvars 3 numgens 1 is S2 codim 1 codimJ 2
[step 0:
radical (use decompose) .00475996 seconds
idlizer1: .00882174 seconds
idlizer2: .0171641 seconds
minpres: .0121529 seconds
time .0595863 sec #fractions 4]
[step 1:
radical (use decompose) .00493842 seconds
idlizer1: .0104227 seconds
idlizer2: .0308907 seconds
minpres: .0184642 seconds
time .119838 sec #fractions 4]
[step 2:
radical (use decompose) .00546161 seconds
idlizer1: .0150679 seconds
idlizer2: .0378584 seconds
minpres: .0169228 seconds
time .0968815 sec #fractions 5]
[step 3:
radical (use decompose) .00528734 seconds
idlizer1: .0123505 seconds
idlizer2: .0609852 seconds
minpres: .0436794 seconds
time .154133 sec #fractions 5]
[step 4:
radical (use decompose) .00552898 seconds
idlizer1: .0231329 seconds
idlizer2: .109083 seconds
minpres: .0199917 seconds
time .22437 sec #fractions 5]
[step 5:
radical (use decompose) .00541209 seconds
idlizer1: .0149981 seconds
time .0303714 sec #fractions 5]
-- used 0.690015 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
|