2009/02/28 by Christian G. Boehmer, Francisco S. N. Lobo · 1 citation
Physics and Astronomy · #gr-qc #astro-ph.CO
paper · pdf · doi:10.1103/physrevd.79.067504
published as Phys.Rev.D79:067504,2009 · 5 pages, 1 figure; minor text changes, added references, improved figure; shortened version to comply with length restrictions
arxiv created 2009/03/30 · arxiv updated 2009/12/01
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.