where RV is the Ricci tensor, R is the scalar curvative and K is Einstein's gravitational constant. Equations (1.1) are second order partial differential equations for the g,, and their solutions… Expand

In Part I of this paper the stress energy tensor and the mean velocity vector of a simple gas are expressed in terms of the Maxwell-Boltzman distribution function. The rest density ρ0, pressure, p,… Expand

Spherically symmetric space-times which admit a one parameter group of conformal transformations generated by a vectorξμ such thatξμ;v+ξv;μ=2gμv are studied. It is shown that the metric coefficients… Expand

fluid mechanics may be characterized as a theory that describes the state of a fluid by means of five functions of at most four independent variables. The latter variables are of two kinds: three… Expand

Einstein equations solution for empty space without singularities containing metric, with closed homogeneous space type hypersurfaces expanding anisotropically