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arXiv · 0906.3860

Power-law cosmic expansion in f(R) gravity models

Naureen Goheer·Julien Larena·Peter K. S. Dunsby
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Abstract

We show that within the class of f(R) gravity theories, FLRW power-law perfect fluid solutions only exist for R^n gravity. This significantly restricts the set of exact cosmological solutions which have similar properties to what is found in standard General Relativity.

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Naureen Goheer, Julien Larena, Peter K. S. Dunsby. 2009-06-21. Power-law cosmic expansion in f(R) gravity models. https://doi.org/10.1103/physrevd.80.061301

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