Journal
CLASSICAL AND QUANTUM GRAVITY
Volume 24, Issue 20, Pages 5073-5091Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0264-9381/24/20/010
Keywords
-
Ask authors/readers for more resources
We find the general behaviour of homogeneous and isotropic cosmological models in some fourth-order theories of gravity. Explicit, exact, general solutions are given for both empty universes and those filled with a perfect fluid. For the vacuum case, solutions are found with closed, open and flat geometries, whilst the perfect fluid solutions are all spatially flat. Both early and late-time limits are studied, and attractor behaviour towards simple power-law expansion is identified. Multiple solutions to the same theories, with the same matter content and topology are found. It is shown that these solutions exhibit a great variety in their evolution.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available