Mathematics – Logic
Scientific paper
Aug 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975zhetf..69..401b&link_type=abstract
Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki, vol. 69, Aug. 1975, p. 401-413. In Russian.
Mathematics
Logic
24
Astronomical Models, Big Bang Cosmology, Gravitation Theory, Relativistic Theory, Viscosity, Anisotropy, Einstein Equations, Energy Dissipation, Entropy, Flux Density, Gravitational Fields, Saddle Points
Scientific paper
The nature of cosmological solutions for the homogeneous type I Bianchi model is investigated by taking into account dissipative processes due to viscosity. It is demonstrated that viscosity cannot remove the cosmological singularity but results in a qualitatively new behavior of the solutions near the singularity. The energy density of matter near the initial cosmological singularity vanishes and then begins to increase during subsequent expansion. Thus the model under consideration possesses an interesting property: matter is created by the gravitational field during the time of the big bang. It is also shown that an effect of viscosity may be a sufficient accumulation of entropy which may be related to the anomalously high amount of entropy per particle encountered in the current Universe.
Belinskii V. A.
Khalatnikov Isaac M.
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