The acoustic wave equation in the expanding universe. Sachs-Wolfe theorem

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In this paper the acoustic field propagating in the early hot ($p=ε/$) universe of arbitrary space curvature ($K=0, \pm 1$) is considered. The field equations are reduced to the d'Alembert equation in an auxiliary static Roberson-Walker space-time. Symbolic computation in {\em Mathematica} is applied.
5 pages LaTeX, Some minor changes introduced

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Symbolic Computation, General Relativity and Quantum Cosmology, Computational Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/226713

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0902.0239
 http://arxiv.org/abs/0902.0239

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arXiv