Journal
ASTROPHYSICS AND SPACE SCIENCE
Volume 361, Issue 12, Pages -Publisher
SPRINGER
DOI: 10.1007/s10509-016-2958-y
Keywords
Perturbation functions; f (R, T, R mu nu T mu nu) gravity
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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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