Asymptotics of LRS Bianchi type I cosmological models with elastic matter

Details Asymptotics of LRS Bianchi type I cosmological models with elastic matter Asymptotics of LRS Bianchi type I cosmological models with elastic matter

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010gregr..42.1491c&link_type=abstract

General Relativity and Gravitation, Volume 42, Issue 6, pp.1491-1512

Mathematics

Logic

1

Bianchi Cosmological Models, Anisotropic Matter, Elastic Matter, Singularities, Isotropization, Bianchi Type I

Scientific paper

In this paper, we report on results in the study of spatially homogeneous cosmological models with elastic matter. We show that the behavior of elastic solutions is fundamentally different from that of perfect fluid solutions already in the case of locally rotationally symmetric Bianchi type I models; this is true even when the elastic material resembles a perfect fluid very closely. In particular, the approach to the initial singularity is characterized by an intricate oscillatory behavior of the scale factors, while the future asymptotic behavior is described by isotropization rates that differ significantly from those of perfect fluids.

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