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On the existence of singularity-free solutions in quartic gravity

J. Rizos·K. Tamvakis
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Abstract

We study a general field theory of a scalar field coupled to gravitation through a quadratic Gauss-Bonnet term $ξ(ϕ)$$R_{GB}^2$. We show that, under mild assumptions about the function $ξ(ϕ)$, the classical solutions in a spatially flat FRW background include singularity - free solutions.

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J. Rizos, K. Tamvakis. 1994-01-20. On the existence of singularity-free solutions in quartic gravity. https://doi.org/10.1016/0370-2693(94)91192-4

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