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Universe 2015, 1(1), 17-23; doi:10.3390/universe1010017

Cosmological Linear Perturbations in the Models of Dark Energy and Modified Gravity

Institute of Physics, Kazan Federal University, Kremlevskaya Street 18, Kazan 420008, Russia
Academic Editor: Kazuharu Bamba
Received: 9 December 2014 / Revised: 15 January 2015 / Accepted: 4 February 2015 / Published: 13 February 2015
(This article belongs to the Special Issue Modified Gravity Cosmology: From Inflation to Dark Energy)
View Full-Text   |   Download PDF [194 KB, uploaded 13 February 2015]

Abstract

The quasi-static solutions of the matter density perturbation in various dark energy models and modified gravity models have been investigated in numerous papers. However, the oscillating solutions in those models have not been investigated enough so far. In this paper, we review the behavior of the oscillating solutions, which have a possibility to unveil the difference between the models of the late-time accelerated expansion of the Universe, by using appropriate approximations. View Full-Text
Keywords: dark energy; modified gravity; cosmological perturbation dark energy; modified gravity; cosmological perturbation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Matsumoto, J. Cosmological Linear Perturbations in the Models of Dark Energy and Modified Gravity. Universe 2015, 1, 17-23.

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