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Some Power-Law Cosmological Solutions in Nonlocal Modified Gravity

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Lie Theory and Its Applications in Physics

Part of the book series: Springer Proceedings in Mathematics & Statistics ((PROMS,volume 111))

Abstract

Modified gravity with nonlocal term \(R^{-1}\mathcal{F}(\square )R,\) and without matter, is considered from the cosmological point of view. Equations of motion are derived. Cosmological solutions of the form \(a(t) = a_{0}\vert t - t_{0}\vert ^{\alpha },\) for the FLRW metric and k = 0, ±1, are found.

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Acknowledgements

Work on this paper was supported by Ministry of Education, Science and Technological Development of the Republic of Serbia, grant No. 174012. The authors thank Prof. V. Dobrev for invitation and hospitality at the X International Workshop “Lie Theory and its Applications in Physics”, 17–23 June 2013, Varna, Bulgaria.

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Correspondence to Jelena Grujic .

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Dimitrijevic, I., Dragovich, B., Grujic, J., Rakic, Z. (2014). Some Power-Law Cosmological Solutions in Nonlocal Modified Gravity. In: Dobrev, V. (eds) Lie Theory and Its Applications in Physics. Springer Proceedings in Mathematics & Statistics, vol 111. Springer, Tokyo. https://doi.org/10.1007/978-4-431-55285-7_16

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