A Concise Introduction to Perturbation Theory in Cosmology
Astrophysics
2009-06-23 v2
Abstract
We give a concise, self-contained introduction to perturbation theory in cosmology at linear and second order, striking a balance between mathematical rigour and usability. In particular we discuss gauge issues and the active and passive approach to calculating gauge transformations. We also construct gauge-invariant variables, including the second order tensor perturbation on uniform curvature hypersurfaces.
Cite
@article{arxiv.0804.3276,
title = {A Concise Introduction to Perturbation Theory in Cosmology},
author = {Karim A. Malik and David R. Matravers},
journal= {arXiv preprint arXiv:0804.3276},
year = {2009}
}
Comments
revtex4, 16 pages, 3 figures; v2: minor changes, typos corrected, reference added, version accepted by CQG