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Cosmology in f(R) exponential gravity

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arxiv 1211.0015 v1 pith:24GELOGS submitted 2012-10-31 gr-qc astro-ph.CO

Luisa Jaime , Marcelo Salgado , Leonardo Patino This is my paper
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keywords approachexponentialgravityotheracceleratedanalysisanalyzebeen
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Using an approach that treats the Ricci scalar itself as a degree of freedom, we analyze the cosmological evolution within an f(R) model that has been proposed recently (exponential gravity) and that can be viable for explaining the accelerated expansion and other features of the Universe. This approach differs from the usual scalar-tensor method and, among other things, it spares us from dealing with unnecessary discussions about frames. It also leads to a simple system of equations which is particularly suited for a numerical analysis.

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  1. Degenerate and connection-dependent cosmological sectors in f(Q,C) gravity

    gr-qc 2026-07 conditional novelty 6.0 of 10

    Connection field equations force a degenerate f(R)-equivalent sector of f(Q,C) cosmology in which three geometric connections coincide, and only nonzero integration constants make the connections physically distinct.

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