139 citations · 772 across the 25 of their papers we have counts for
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3 papers · 1 filter
astro-ph.CO2014★ 14 cited
Second order density perturbations for dust cosmologies
Claes Uggla, John Wainwright
We present simple expressions for the relativistic first and second order fractional density perturbations for FL cosmologies with dust, in four different gauges: the Poisson, unif…
astro-ph.CO2013★ 15 cited
Simple expressions for second order density perturbations in standard cosmology
Claes Uggla, John Wainwright
In this paper we present four simple expressions for the relativistic first and second order fractional density perturbations for CDM cosmologies in different gauges: the Poisso…
astro-ph.CO2012★ 6 cited
A simplified structure for the second order cosmological perturbation equations
Claes Uggla, John Wainwright
Increasingly accurate observations of the cosmic microwave background and the large scale distribution of galaxies necessitate the study of nonlinear perturbations of Friedmann-Lem…