1998/04/21 by Nathalie Deruelle, Jean-Philippe Uzan
Physics and Astronomy · #gr-qc
published as Int.J.Theor.Phys. 36 (1997) 2461 · 7 pages, no figure, published in the Proceedings of the workshop on Cosmology and Time Asymmetry, Peyresq, July 21-31,1996, Int. Jour. Theor. Physics, 36, 2461 (1997)
arxiv created 1998/04/21 · arxiv updated 2009/11/30
We briefly recall the problem of defining conserved quantities such as energy in general relativity, and the solution by introducing a symmetric background. We apply the general formalism to perturbed Robertson-Walker spacetimes with de Sitter geometry as background. We relate the obtained conserved quantities to Traschen's integral constraints and mention a few applications in cosmology.