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- Title
Bulk Viscous Anisotropic Cosmological Models with Variable G and Λ.
- Authors
Pradhan, Anirudh; Yadav, Vinod Kumar; Dolgov, A.
- Abstract
The Einstein field equations with bulk viscosity and variable G and A for Bianchitype universes are studied under the assumption of a power-law time variation of the expansion factor, achieved via a suitable power-law assumption for the Hubble parameter suggested by M. S. Berman. All the models have a power-law variation of pressure and and Λ(t) as 1/t² density and are singular at the epoch t = 0. The variation of G(t) as 1/t is consistent with these models.
- Subjects
EINSTEIN field equations; BIANCHI groups
- Publication
International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2002, Vol 11, Issue 6, p893
- ISSN
0218-2718
- Publication type
Article
- DOI
10.1142/S0218271802002050