Ndim_ := 4:
x1_ := xi:
x2_ := theta:
x3_ := phi:
x4_ := t:
sig_ := 2:
complex_ := {}:
g11_ := 2*R^2*(3*alpha-7+xi^2)*((3*alpha-7+4*xi^2)*(3*alpha-7))^(1/2)*alpha/(6*((3*alpha-7+4*xi^2)*(3*alpha-7))^(1/2)*alpha^2-14*((3*alpha-7+4*xi^2)*(3*alpha-7))^(1/2)*alpha-9*xi^2*((alpha-1)*(3*alpha-7))^(1/2)*3^(1/2)*alpha-((3*alpha-7+4*xi^2)*(3*alpha-7))^(1/2)*xi^2*alpha+24*xi^2*((alpha-1)*(3*alpha-7))^(1/2)*3^(1/2)):
g22_ := R^2*xi^2:
g33_ := R^2*xi^2*sin(theta)^2:
g44_ := -(3*alpha-7+xi^2)^3/(3*alpha-7)^3:
constraint_:=[]:
Info_:=`H. Heintzmann, Z. Phys., 228, 489 (1969)`: