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Physical interpretation of homogeneous cosmological models

Физическая интерпретация однородных космологических моделей

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Il Nuovo Cimento B (1971-1996)

Summary

A physical interpretation of some homogeneous cosmological models of Bianchi type VII is considered. Cosmological solutions are constructed, which, from the physical point of view, correspond to Friedmann models («flat» (VII0 type) and «open» (VII h type)) perturbed by gravitational waves of an arbitrary length (standing and travelling) and/or by vortex motions of matter having an arbitrary scale ψ.

Riassunto

Si considera l’interpretazione fisica di alcuni modelli cosmologici omogenei del tipo VII di Bianchi. Si costruiscono soluzioni cosmologiche che dal punto di vista fisico corri-spondono ai modelli di Friedmann («piatto» (tipo VII0) e «aperto» (tipo VII h )) perturbati da onde gravitazionali di lunghezza arbitraria (stazionarie e viaggianti) e/o dai movimenti vorticosi della materia aventi una scala arbitraria λ.

Резюме

Рассматривается физическая интерпретация некоторых однородных космологических моделей типа VII Бьянки. Конструируются космологические решения, которые с физической точки зрения соответствуют моделям Фридмана («плоская») (VII0 тип) и «открытая» (VII h тип)), возмущенным гравнтациоными волнами произвольной длины (стоячими и движущимися) и/или вихревыми движениями вещества, имеющими произвольный масштаб λ.

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Lukash, V.N. Physical interpretation of homogeneous cosmological models. Nuov Cim B 35, 268–292 (1976). https://doi.org/10.1007/BF02724064

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  • DOI: https://doi.org/10.1007/BF02724064

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