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A Concise Introduction to Perturbation Theory in Cosmology

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arxiv 0804.3276 v2 pith:52SYJOJH submitted 2008-04-21 astro-ph

Karim A. Malik , David R. Matravers This is my paper
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keywords perturbationconcisecosmologygaugeintroductionordersecondtheory
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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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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 46 citations worldwide. Full citation record

  1. From inflation to hot big bang -- a tutorial on cosmological perturbations

    hep-ph 2026-07 accept novelty 1.0 of 10

    A tutorial deriving cosmological perturbation equations from inflation through reheating, with explicit gauge-invariant computations and Python scripts.

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