Cosmological solutions in modified gravity with monomial nonlocality

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摘要

We consider cosmological properties of modified gravity with nonlocal term RpF(□)Rq in its Lagrangian. Equations of motion are presented. For the flat FLRW metric, and some particular values of natural numbers p and q cosmological solutions of the form a(t)=Ce−γ12t2 are found.

论文关键词：Modified gravity,Nonlocal gravity,Cosmological solutions

论文评审过程：Received 4 December 2015, Revised 15 March 2016, Accepted 21 March 2016, Available online 18 April 2016, Version of Record 18 April 2016.

论文官网地址：https://doi.org/10.1016/j.amc.2016.03.030