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arXiv · 0804.3276

A Concise Introduction to Perturbation Theory in Cosmology

Karim A. Malik·David R. Matravers
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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.

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Karim A. Malik, David R. Matravers. 2008-09-22. A Concise Introduction to Perturbation Theory in Cosmology. https://doi.org/10.1088/0264-9381%2F25%2F19%2F193001

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