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De Sitter and power-law solutions in some models of modified gravity

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arxiv 1612.04179 v1 pith:IQEO2PN3 submitted 2016-12-13 gr-qc

Yi Zhong , Emilio Elizalde This is my paper · ORCID
classification gr-qc
keywords gravitysolutionsactionbrans-dickelovelockmimeticmodifiedsitter
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Inspired by some recent works of Lovelock Brans-Dicke gravity and mimetic gravity, cosmology solutions in extensions of these two modified gravities are investigated. A non-local term is added to the Lovelock Brans-Dicke action and Gauss-Bonnet terms to the mimetic action,correspondingly. De Sitter and power scale factor solutions are then obtained in both theories. They can provide natural new approaches to a more accurate description of the unverse evolution.

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