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Exact solutions of Einstein field equations in perfect fluid distribution using Lie symmetry method

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Abstract

The exact non-static accelerating solutions of Einstein field equations in perfect fluid distribution with nonzero shear in the texture gas dominated universe corresponding to an indefinite non-degenerate metric in cartesian coordinates are obtained in a gravitational field of Petrov type D. Lie symmetry method is used for reduction and finding trigonometric solutions. By following multiplier approach, the conservation laws are obtained. The graphical representations are also shown.

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Acknowledgements

First author (Divya Jyoti) is very much thankful to CSIR for providing financial assistance in terms of JRF fellowship via letter with Sr. No. 1061841352 and Ref. No. 17/06/2018(i)EU-V. Rajesh Kumar Gupta and Sachin Kumar thank the National Board of Higher Mathematics for financial support provided through Ref. No. 2/48(16)/2016/NBHM(R.P.)/R&D II/14982.

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Correspondence to Sachin Kumar.

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Jyoti, D., Kumar, S. & Gupta, R.K. Exact solutions of Einstein field equations in perfect fluid distribution using Lie symmetry method. Eur. Phys. J. Plus 135, 604 (2020). https://doi.org/10.1140/epjp/s13360-020-00622-2

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  • DOI: https://doi.org/10.1140/epjp/s13360-020-00622-2

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