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Bianchi-I Universe with Decaying Vacuum Energy Density and Time Varying Gravitational Constant

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Abstract

Anisotropic Locally Rotationally Symmetric Bianchi-I (LRSBI) cosmological model is investigated with variable gravitational and cosmological constants in the framework of Einstein’s general relativity. The shear scalar is considered to be proportional to the expansion scalar. The dynamics of the anisotropic universe with variable G and Λ are discussed. Our calculations for the Supernova constraints concerning the luminosity distance provide reasonable results.

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Acknowledgements

The author is grateful to the anonymous referees for their useful suggestions to improve the paper.

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  1. Department of Physics, Government College of Engineering Kalahandi, Bhawanipatna, Odisha, 766002, India

    Sunil Kumar Tripathy

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  1. Sunil Kumar Tripathy
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Correspondence to Sunil Kumar Tripathy.

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Tripathy, S.K. Bianchi-I Universe with Decaying Vacuum Energy Density and Time Varying Gravitational Constant. Int J Theor Phys 52, 4218–4228 (2013). https://doi.org/10.1007/s10773-013-1734-9

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  • DOI: https://doi.org/10.1007/s10773-013-1734-9

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