Ndim_ := 4:
x1_ := xi:
x2_ := theta:
x3_ := phi:
x4_ := t:
sig_ := 2:
complex_ := {}:
g11_ := 7/2*R^2*(2-7*xi^2+xi^2*57^(1/2))^2/(14+70*xi^2-10*xi^2*57^(1/2)-53*xi^4+7*xi^4*57^(1/2)):
g22_ := R^2*xi^2:
g33_ := R^2*xi^2*sin(theta)^2:
g44_ := -1/16*(2-7*xi^2+xi^2*57^(1/2))^4:
constraint_:=[]:
Info_:=`M.C Durgapal and R.S Fuloria, Gen. Rel. Grav., 17, 671 (1985)`: