Journal
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
Volume 47, Issue 12, Pages 3186-3200Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10773-008-9754-6
Keywords
Modified gravity models; Dark energy; Stability
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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.
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