Abstract
Short-wave gravitational disturbances are considered in an isotropic, expanding universe, filled with an ultrarelativistic gas. Solutions are obtained for scalar, vector. and tensor disturbances in the limit nη » 1, where n is the wave vector and n is the time coordinate x4.
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A. V. Zakharov, Izy. Vyssh. Uchebn. Zaved., Fiz., No. 3, 30 (1978).
L. D. Landau, Zh, Éksp. Teor. Fiz.,16, 574 (1946).
F. Tricomi, Differential Equations, Hafner (1961).
E. M. Lifshits, Zh. Eksp. Teor. Fiz.,16, 587 (1946).
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 3, pp. 35–43, March, 1978.
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Zakharov, A.V. Kinetics of small disturbances in an isotropic universe II. Short-wave disturbances in an ultrarelativistic gas. Soviet Physics Journal 21, 295–302 (1978). https://doi.org/10.1007/BF00894720
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DOI: https://doi.org/10.1007/BF00894720