Original scientific paper

Bianchi type-I stiff-fluid tilted cosmological model with bulk viscosity in general relativity

Raj Bali ; Department of Mathematics, University of Rajasthan, Jaipur-302055, India
Pramila Kumawat ; Department of Mathematics, University of Rajasthan, Jaipur-302055, India
Shalini Sharma ; Department of Mathematics, University of Rajasthan, Jaipur-302055, India

Abstract

Bianchi type-I stiff-fluid tilted cosmological model with bulk viscosity is investigated. To get the deterministic model of the universe, we have assumed that the universe is filled with a stiff fluid, a condition A = (BC) n between the metric potentials A, B, C and ζθ =constant, where ζ is the coefficient of bulk viscosity, θ the expansion and n is a constant. The physical and geometrical aspects of the model in the presence and absence of bulk viscosity are discussed.

Keywords

Bianchi type-I cosmological model; stiff fluid; tilted; bulk viscosity

Hrčak ID:

304596

URI

https://hrcak.srce.hr/304596

Publication date:

2.5.2010.

Article data in other languages: croatian

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