Abstract
In this paper we derive a wave equation based on a cosmological model of the universe expansion in the four-dimensional space-velocity. An analytical solution of this equation is obtained using Nikiforov-Uvarov mathematical method. In this procedure we use the solutions of the Einstein gravitational field equations for the perfect fluid energy-momentum tensor.
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Motavalli, H., Rezaei Akbarieh, A. & Parhizkar, M. Analytical Solution of a Wave Equation in Cosmology. Int J Theor Phys 50, 2328–2333 (2011). https://doi.org/10.1007/s10773-011-0715-0
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DOI: https://doi.org/10.1007/s10773-011-0715-0