From Big to Little Rip in modified F(R,G) gravity

A. N. Makarenko; I. V. Kirnos; V. V. Obukhov

From Big to Little Rip in modified F(R,G) gravity

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arxiv 1201.4742 v2 pith:G6LMFAW3 submitted 2012-01-23 gr-qc

A. N. Makarenko , V. V. Obukhov , I. V. Kirnos This is my paper · ORCID

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We discuss the cosmological reconstruction in modified Gauss-Bonnet (GB) gravity. It is demonstrated that the modified GB gravity may describe the most interesting features of late-time cosmology. We derive explicit form of effective phantom cosmological models ending by the finite-time future singularity (Big Rip) and without singularities in the future (Little Rip).

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Autonomous Dynamical System of Einstein-Gauss-Bonnet Cosmologies
gr-qc 2019-08 conditional novelty 4.0 of 10

A phase space analysis of Einstein-Gauss-Bonnet cosmology finds a stable equilibrium and a heteroclinic orbit, but the equilibrium requires the Gauss-Bonnet coupling to vanish and the orbit violates the Friedmann constraint.

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