Integral Constraints On cosmological Perturbations and their Energy
arXiv:gr-qc/9608046 · doi:10.1088/0264-9381/14/2/015
Abstract
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.
19 pages, Tex file, submitted to Classical and Quantum Gravity