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Abstract: We study the dynamics of homogeneous isotropic FRW cosmologies with positivespatial curvature in $fR$-gravity, paying special attention to the existenceof Einstein static models and only study forms of $fR=R^n$ for which thesestatic models have been shown to exist. We construct a compact state space andidentify past and future attractors of the system and recover a previouslydiscovered future attractor corresponding to an expanding accelerating model.We also discuss the existence of universes which have both a past and futurebounce, a phenomenon which is absent in General Relativity.



Autor: Naureen Goheer, Rituparno Goswami, Peter K.S. Dunsby

Fuente: https://arxiv.org/







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