Journal
GENERAL RELATIVITY AND GRAVITATION
Volume 34, Issue 10, Pages 1657-1673Publisher
KLUWER ACADEMIC/PLENUM PUBL
DOI: 10.1023/A:1020172207396
Keywords
singularity; big bang; cosmology
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Much of the published work regarding the Isotropic Singularity is performed under the assumption that the matter source for the cosmological model is a barotropic perfect fluid, or even a perfect fluid with a gamma-law equation of state. There are, however, some general properties of cosmological models which admit an Isotropic Singularity, irrespective of the matter source. In particular, we show that the Isotropic Singularity is a point-like singularity and that vacuum space-times cannot admit an Isotropic Singularity. The relationships between the Isotropic Singularity, and the energy conditions, and the Hubble parameter is explored. A review of work by the authors, regarding the Isotropic Singularity, is presented.
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