ID: 18.0 Parent: 17.0 Tree
PDER
VAR\IND x1 x2 x3 x1^4+2*x1^2*x2^2+x2^
4+2*x1^2*x3^2+2*x2^2
*x3^2+x3^4-2*x1^2-2*
x2^2-2*x3^2-x4^2+1
x1 1 0 0 0
x2 0 1 0 0
x3 0 0 1 0
x4 1/2*x6*(4*x1^3+4*x2^
2*x1+4*x1*x3^2-4*x1)
1/2*x6*(4*x2*x1^2+4*
x2^3+4*x2*x3^2-4*x2)
1/2*x6*(4*x3*x1^2+4*
x3*x2^2+4*x3^3-4*x3)
-1/2*x6
x6 -1/2*x6^3*(4*x1^3+4*
x2^2*x1+4*x1*x3^2-4*
x1)
-1/2*x6^3*(4*x2*x1^2
+4*x2^3+4*x2*x3^2-4*
x2)
-1/2*x6^3*(4*x3*x1^2
+4*x3*x2^2+4*x3^3-4*
x3)
1/2*x6^3
FOCUS
(x1^2+x2^2+x3^2-1)^2*x4^2-x4^4
2*x1
2*x2
2*x3
DEP
x6*x4-1
MAP
x1 x1
x2 x2
x3 x3
x4 x4
IMAP
x1 x1
x2 x2
x3 x3
x4 x4
x6 1/x4
STACK
WBO (dim: 4)
J
x4^2 0
c 0
Nempty
(E,a)
Ea
x1^4+2*x1^2*x2^2+x2^4+2*x1^2*x3^2+2*x2^2*x3^2+x3^4-2*x1^2-2*x2^2-2*x3^2-x4^2+1 0
C empty