Singularity phenomena in viable f(R) gravity

Details Singularity phenomena in viable f(R) gravity Singularity phenomena in viable f(R) gravity

2012-01-22

arxiv.org/abs/1201.4546v2

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

15 pages, 7 figures, references added

Scientific paper

The curvature singularity in viable f(R) gravity models is examined when the
background density is dense. This singularity could be eliminated by adding the
$R^{2}$ term in the Lagrangian. Some of cosmological consequences, in
particular the source for the scalar mode of gravitational waves, are
discussed.

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