24. Inflation: description in terms of hydrodynamics (Inflationary perturbations 4)
This post continues my lecture notes on large scale structure, cosmological perturbations and inflation. The last post in this series was about the problem of initial conditions in FRW cosmology. (…)
11. Introduction into perturbation theory in general relativity 4 (Inflationary perturbations 3)
Today I am going to discuss equations driving the dynamics of cosmological perturbations. (…)
9. Introduction into perturbation theory in general relativity 2 (Inflationary perturbations 3)
Today I will continue our discussion of the perturbation theory in general relativity (please see the previous post here); in particular, I will focus my attention on the issue of gauge invariance.
1. (…)
8. Introduction into perturbation theory in general relativity (Inflationary perturbations 3)
Before turning to the discussion of the perturbation theory in general relativity, let me briefly remind the outline of the two previous posts (1 and 2). (…)
7. Newtonian perturbation theory 2 (Inflationary perturbations 2)
This is the 5th post in the series based on my lectures on inflationary perturbations at the University of Helsinki. (…)
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