Cosmological Models with Variable G and Λ

Einstein's equations with variable gravitational and cosmological constants are considered in the presence of a perfect fluid for the anizotropic Bianchi I universe in a way which conserving the energy-momentum tensor. Two solutions are found, one of which the cosmological term varies inversely...

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Bibliographic Details
Published inAstrophysics and space science Vol. 289; no. 1-2; pp. 103 - 109
Main Author Kilinc, C B
Format Journal Article
LanguageEnglish
Published 01.01.2004
Subjects
Computational fluid dynamics
Cosmological constant
Einstein equations
Fluid flow
Fluids
Mathematical analysis
Power law
Tensors
Universe
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Summary:Einstein's equations with variable gravitational and cosmological constants are considered in the presence of a perfect fluid for the anizotropic Bianchi I universe in a way which conserving the energy-momentum tensor. Two solutions are found, one of which the cosmological term varies inversely with power law of time. The other of which cosmological term is constant.
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ISSN:0004-640X
1572-946X
DOI:10.1023/B:ASTR.0000009396.57711.53