42 citations · 99 across the 3 of their papers we have counts for
3 papers
gr-qc2010★ 42 cited
On The Existence Of Anisotropic Cosmological Models In Higher-Order Theories Of Gravity
Jonathan Middleton
We investigate the behaviour on approach to the initial singularity in higher-order extensions of general relativity by finding exact cosmological solutions for a wide class of mod…
gr-qc2008★ 25 cited
The Stability of an Isotropic Cosmological Singularity in Higher-Order Gravity
Jonathan Middleton, John D. Barrow
We study the stability of the isotropic vacuum Friedmann universe in gravity theories with higher-order curvature terms of the form added to the Einstein-Hilbe…
gr-qc2007★ 32 cited
Stable Isotropic Cosmological Singularities in Quadratic Gravity
John D. Barrow, Jonathan Middleton
We show that, in quadratic lagrangian theories of gravity, isotropic cosmological singularities are stable to the presence of small scalar, vector and tensor inhomogeneities. Unlik…