期刊
GENERAL RELATIVITY AND GRAVITATION
卷 43, 期 11, 页码 3065-3078出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10714-011-1224-4
关键词
Horava Gravity; Cosmology; Dark energy
资金
- University Grants Commission, Govt. Of India [33-28/2007(SR)]
We investigate f (R)-gravity models performing the ADM-slicing of standard General Relativity. We extract the static, spherically-symmetric vacuum solutions in the general case, which correspond to either Schwarzschild de-Sitter or Schwarzschild anti-de-Sitter ones. Additionally, we study the cosmological evolution of a homogeneous and isotropic universe, which is governed by an algebraic and not a differential equation. We show that the universe admits solutions corresponding to acceleration at late cosmological epochs, without the need of fine-tuning the model-parameters or the initial conditions.
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