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Fizika B : a journal of experimental and theoretical physics, Vol. 18 No. 3, 2009.

Letter to the Editor

Bianchi type-III string cosmological models with bulk viscosity and time-dependent L term

R. K. Tiwari ; Department of Mathematics, Govt. Model Science College, Rewa (MP) India
U. K. Dwivedi ; Department of Mathematics, Govt. Engineering College, Rewa (MP) India

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page 181-188

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Abstract

We study Einstein’s field equations in Bianchi type-III string cosmological models with bulk viscosity and variable cosmological term Λ. Exact solutions of the field equations are obtained by assuming the conditions: the bulk viscosity is proportional to the expansion scalar, ξ ∝ θ, expansion scalar is proportional to shear scalar, θ ∝ σ, and Λ is proportional to the Hubble parameter. The corresponding physical interpretations of the cosmological solutions are also discussed.

Keywords

Bianchi type-III string cosmological model; variable Λ; bulk viscosity; expansion scalar; shear scalar; Hubble parameter

Hrčak ID:

304582

URI

https://hrcak.srce.hr/304582

Publication date:

2.8.2009.

Article data in other languages: croatian

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