Spherically symmetric perturbations in a spatially flat universe

R. K. Mukharlyamov, A. A. Popov

Faculty of Physics, Kazan State University

Abstract: A solution of the linearized Einstein's equations for a spherically symmetric perturbation of the ultrarelativistic fluid in the homogeneous and isotropic universe is obtained. Conditions on the boundary of the perturbation are discussed. The examples of particle-like and wave-like solutions are given.

UDC: 530.12:531.51

Received: 21.09.2006

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