Original scientific paper

Spatially homogeneous Bianchi type-V cosmological models in Brans-Dicke theory

Mohd. Zeyauddin ; Department of Applied Sciences, Sharda University, Sector 23 A, Gurgaon-122017, India
Shri Ram ; Department of Applied Mathematics, Institute of Technology, Banaras Hindu University, Varanasi-2210 05, India

Abstract

We discuss the field equations of Brans-Dicke theory for a spatially homogeneous and anisotropic Bianchi type-V space-time in the presence of a perfect fluid and obtain their exact solutions by applying the law of variation of Hubble's parameter which yields a constant value of deceleration parameter. The corresponding cosmological models are divided into two categories, (i) singular models with power-law expansion, (ii) non-singular models with exponential expansion. The physical and kinematical behaviors of the cosmological models are discussed. These models are compatible with the results of recent observations.

Keywords

cosmology; Bianchi V models; Hubble's parameter; Brans-Dicke theory

Hrčak ID:

304603

URI

https://hrcak.srce.hr/304603

Publication date:

1.9.2010.

Article data in other languages: croatian

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