 The values "u" < 1 are brought into this range according to

In the generalized solution, the form corresponding to applies only to the [[Asymptote|asymptotic]] metric (the metric close to the singularity "t" = 0), respectively, to the major terms of its [[power series|series expansion by powers]] of "t".In the synchronous reference frame it is written in the form of with a space distance element

where

The [[three-dimensional space|three-dimensional]] [[vector (mathematics and physics)|vectors]] l, m, n define the directions at which space distance changes with time by the [[power laws]] .These vectors, as well as the numbers "pl", "pm", "pn" which, as before, are related by , are functions of the space coordinates.