Construction of inhomogeneous universes which are Friedmann-Lemaître-Robertson-Walker on average
1992; American Physical Society; Volume: 69; Issue: 16 Linguagem: Inglês
10.1103/physrevlett.69.2330
ISSN1092-0145
Autores Tópico(s)Relativity and Gravitational Theory
ResumoThe understanding of our Universe is based on the working hypothesis that the homogeneous and isotropic models give a successful description on a very large scale, despite the nonlinear inhomogeneity of the matter distribution in the present Universe. We consider the compatibility problem between the overall homogeneity and isotropy and the local inhomogeneity. A scheme to construct inhomogeneous irrotational dust universes which are homogeneous and isotropic on average is shown in the framework of general relativity; they represent ``relativistic pancake solutions'' analogous to those in Newtonian cosmology.
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