Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-02-27
Int.J.Theor.Phys.47:3186-3200,2008
Physics
High Energy Physics
High Energy Physics - Theory
13 pages, no figures
Scientific paper
10.1007/s10773-008-9754-6
Dynamical system methods are used in the study of the stability of spatially flat homogeneous cosmologies within a large class of generalized modified gravity models in the presence of a relativistic matter-radiation fluid. The present approach can be considered as the generalization of previous works in which only $F(R)$ cases were considered. Models described by an arbitrary function of all possible geometric invariants are investigated and general equations giving all critical points are derived.
Cognola Guido
Zerbini Sergio
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