Integral Constraints On cosmological Perturbations and their Energy

Details Integral Constraints On cosmological Perturbations and their Energy Integral Constraints On cosmological Perturbations and their Energy

1996-08-19

arxiv.org/abs/gr-qc/9608046v1

Class.Quant.Grav. 14 (1997) 421-434

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

19 pages, Tex file, submitted to Classical and Quantum Gravity

Scientific paper

10.1088/0264-9381/14/2/015

We show the relation between Traschen's integral equations and the energy,
and ``position of the centre of mass'', of the matter perturbations in a
Robertson-Walker spacetime. When the perturbations are ``localised'' we get a
set of integral constraints that includes hers. We illustrate them on a simple
example.

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