Exploring stable models in f(R, T, RμνTμν) gravity

被引：0
|
作者：
Baffou, E. H. [1 ]
Houndjo, M. J. S. [2 ]
Tosssa, J. [1 ]
机构：
[1] IMSP, 01 BP 613, Porto Novo, Benin
[2] Univ Natitingou, Fac Sci & Tech Natitingou, Natitingou, Benin
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2016年 / 361卷 / 12期
关键词：
Perturbation functions; f; (R; T; R mu nu T mu nu) gravity; BARYON ACOUSTIC-OSCILLATIONS; GALAXY REDSHIFT SURVEY; DIGITAL SKY SURVEY; PALATINI APPROACH; UNIVERSE; SUPERNOVAE; COSMOLOGY; DISTANCE;
D O I：
10.1007/s10509-016-2958-y
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We examine in this paper the stability analysis in f (R, T, R mu nu T mu nu) modified gravity, where R and T are the Ricci scalar and the trace of the energy-momentum tensor, respectively. By considering the flat Friedmann universe, we obtain the corresponding generalized Friedmann equations and we evaluate the geometrical and matter perturbation functions. The stability is developed using the de Sitter and power-law solutions. We search for application the stability of two particular cases of f (R, T, R mu nu T mu nu) model by solving numerically the perturbation functions obtained.
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页数：8
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