2 citations · 2 across the 3 of their papers we have counts for
5 papers · 1 filter
Gravitational entropy in cosmological models
Nicos Pelavas, Alan Coley
We discuss whether an appropriately defined dimensionless scalar function might be an acceptable candidate for the gravitational entropy, by explicitly considering Szekeres and Bia…
Isotropic singularity in brane cosmological models
Alan Coley
It is argued that the initial cosmological singularity is isotropic in spatially inhomogeneous brane-world models. This implies that brane cosmology may naturally give rise to a se…
Averaging out Inhomogeneous Newtonian Cosmologies: III. The Averaged Navier-Stokes-Poisson Equations
Roustam Zalaletdinov, Alan Coley
The basic concepts and hypotheses of Newtonian Cosmology necessary for a consistent treatment of the averaged cosmological dynamics are formulated and discussed in details. The spa…
On space-times admitting shear-free, irrotational, geodesic null congruences
A. M. Sintes, A. A. Coley, D. J. McManus
Space-times admitting a shear-free, irrotational, geodesic null congruence are studied. Attention is focused on those space-times in which the gravitational field is a combination…
Dynamical Systems in Cosmology
A. A. Coley
Dynamical systems theory is especially well-suited for determining the possible asymptotic states (at both early and late times) of cosmological models, particularly when the gover…