Stability of the Einstein static universe in modified Gauss-Bonnet gravity

Details Stability of the Einstein static universe in modified Gauss-Bonnet gravity Stability of the Einstein static universe in modified Gauss-Bonnet gravity

2009-02-17

arxiv.org/abs/0902.2982v3

Phys.Rev.D79:067504,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, 1 figure; minor text changes, added references, improved figure; shortened version to comply with length restrictions

Scientific paper

10.1103/PhysRevD.79.067504

We analyze the stability of the Einstein static universe by considering
homogeneous perturbations in the context of f(G) modified Gauss-Bonnet theories
of gravity. By considering a generic form of f(G), the stability region of the
Einstein static universe is parameterized by the linear equation of state
parameter w=p/rho and the second derivative f"(G) of the Gauss-Bonnet term.

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