113 citations · 334 across the 5 of their papers we have counts for
Showing 2009Show all
3 papers · 1 filter
astro-ph.CO2009★ 70 cited
The influence of structure formation on the cosmic expansion
Chris Clarkson, Kishore Ananda, Julien Larena
We investigate the effect that the average backreaction of structure formation has on the dynamics of the cosmological expansion, within the concordance model. Our approach in the…
gr-qc2009★ 92 cited
Power-law cosmic expansion in f(R) gravity models
Naureen Goheer, Julien Larena, Peter K. S. Dunsby
We show that within the class of f(R) gravity theories, FLRW power-law perfect fluid solutions only exist for R^n gravity. This significantly restricts the set of exact cosmologica…
gr-qc2009★ 56 cited
Spatially averaged cosmology in an arbitrary coordinate system
J. Larena
This paper presents a general averaging procedure for a set of observers which are tilted with respect to the cosmological matter fluid. After giving the full set of equations desc…