 The Einstein equations for the Type VIII and Type IX space models are
(the remaining components formula_39, formula_40, formula_41, formula_42, formula_43, formula_44 are identically zeros).These equations contain only functions of time; this is a condition that has to be fulfilled in all homogeneous spaces.Here, the and are exact and their validity does not depend on how near one is to the singularity at "t" = 0.