Self-similarity in a Kantowski-Sachs universe with a string cloud

Details Self-similarity in a Kantowski-Sachs universe with a string cloud Self-similarity in a Kantowski-Sachs universe with a string cloud

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005rmxf...51...22m&link_type=abstract

Revista Mexicana De Fisica, vol. 51, no. 1, p. 22-26.

Mathematics

Logic

Space-Time, Inheritance Symmetry, Cosmological Models, Fixed-Points, Curvature, Fluids

Scientific paper

We study a cosmological model with very simple solutions characterized by string clouds. Assuming self-similar symmetry for a Kantowski-Sachs spacetime we study the gravitational effects of the cosmic strings. It is also assumed that the primitive universe enters in a false vacuum-dominated era, accelerating the expansion in a time period of the order of 10(-35) sec (a phase transition), satisfying all the energy conditions. Finally, we examine the possibility that in the last stages of this evolution, the geometry of the universe could be flat.

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