Summary
A two-soliton exact solution of the vacuum Einstein equations has been constructed. This solution represents soliton waves propagating on a Bianchi type-I cosmological model. The solution represents one of the possible mechanisms of creation of gravitational waves due to the initial inhomogeneity of the Universe.
Riassunto
Si è costruita una soluzione esatta a due solitoni delle equazioni di campo di Einstein nel vuoto. Questo genere di soluzione descrive onde solitoniche in propagazione su un modello cosmologico di Bianchi tipo I. Questa soluzione rappresenta uno dei possibili meccanismi di creazione di onde gravitazionali originate dall'iniziale inomogeneità dell'Universo.
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References
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V. A. Belinskii andI. M. Khalatnikov:Sol. Phys. JETP,30, 1174 (1970).
V. A. Belinskii andD. Fargion:The inverse-scattering problem technique in gravitation theory (in press).
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Belinsky, V., Fargion, D. Two-soliton waves in anisotropic cosmology. Nuov Cim B 59, 143–162 (1980). https://doi.org/10.1007/BF02739052
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DOI: https://doi.org/10.1007/BF02739052