On the existence of singularity-free solutions in quartic gravity
J. Rizos, K. Tamvakis
Abstract
We study a general field theory of a scalar field coupled to gravitation through a quadratic Gauss-Bonnet term ξ(ϕ)RGB2. 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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