Original scientific paper

A model to explain varying G and L with constant deceleration parameter

R. K. Tiwari ; Department of Mathematics, Governemnt Model Science College, Rewa (M.P.) 486001, India
S. S. Tiwari ; Department of Mathematics, Governemnt Model Science College, Rewa (M.P.) 486001, India
P. Pandey ; Department of Physics, Governemnt Model Science College, Rewa (M.P.) 486001, India

Abstract

We study the evolution of homogeneous and anisotropic Bianchi type-I cosmological models in the presence of perfect fluid with variable G and L by assuming a special law of variation for Hubble's parameter that yields a constant value of the deceleration parameter. Some physical consequences of the model are discussed in the case of Zel'dovich fluid and radiation-dominated fluid.

Keywords

cosmology; variable cosmological term; cosmological models; Hubble's parameter

Hrčak ID:

304573

URI

https://hrcak.srce.hr/304573

Publication date:

1.3.2009.

Article data in other languages: croatian

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