ID: 16.0 Parent: 15.0 Tree
PDER
VAR\IND x1 x2 x3 x4
x1 1 0 0 0
x2 0 1 0 0
x3 0 0 1 0
x4 0 0 0 1
x6 -2*x1*x6^2 -2*x2*x6^2 -2*x3*x6^2 0
x7 -(-2*x1-2*x4^2*x1*x6
^2)*x7^2
-(-2*x2-2*x4^2*x2*x6
^2)*x7^2
-(-2*x3-2*x4^2*x3*x6
^2)*x7^2
-2*x6*x4*x7^2
FOCUS
(x1^2+x2^2+x3^2-1)^2*x4^2-x4^4
2*x1
2*x2
2*x3
x4
-2*x1-2*x4^2*x1*x6^2
-2*x2-2*x4^2*x2*x6^2
-2*x3-2*x4^2*x3*x6^2
2*x6*x4
DEP
x6*(x1^2+x2^2+x3^2-1)-1
x7*(-x1^2+x6*x4^2-x2^2-x3^2+1)-1
MAP
x1 x1
x2 x2
x3 x3
x4 x4
IMAP
x1 x1
x2 x2
x3 x3
x4 x4
x6 1/(x1^2+x2^2+x3^2-1)
x7 (x1^2+x2^2+x3^2-1)/(-x1^4-2*x1^2*x2^2-2*x1^2*x3^2+2*x1^2+x4^2-x2^4-2*x2^2*x3^2+2
*x2^2-x3^4+2*x3^2-1)
STACK
WBO (dim: 4)
J
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 0
Nempty
(E,a)
Ea
x4 1
C empty