For R + F(G) gravity, the paper claims two static spherical vacuum solutions: a de Sitter branch and a metric B(r) = -1 + r/(4a), with F(G) = G^(3/2) + F0.
Stability of the Einstein static universe in modified Gauss-Bonnet gravity
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abstract
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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gr-qc 1years
2025 1verdicts
REJECT 1representative citing papers
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Static Spherically Symmetric Solutions in General Gauss-Bonnet Gravity
For R + F(G) gravity, the paper claims two static spherical vacuum solutions: a de Sitter branch and a metric B(r) = -1 + r/(4a), with F(G) = G^(3/2) + F0.