Once again on the Friedman-like model of open universe with pressure
Автор: Baranov A.M.
Журнал: Пространство, время и фундаментальные взаимодействия @stfi
Рубрика: Гравитация, космология и фундаментальные поля
Статья в выпуске: 1 (22), 2018 года.
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N this article there is a development of a new method of finding of exact solutions on the basis of the Friedman solution for the open Universe in the Fock form. This method was proposed in the previous article. Besides this the approach is closely connected with another method which allows to reduce the modelling problem of the open Universe with the conformally flat metric in the Fock form to a problem of mechanical moving of a particle in the given force field. In this case the Einstein equations with an energy-momentum tensor in an approximation of a Pascal perfect fluid are transformed to the equation similar to the second law of Newton for function which is a root of the fourth degree of conformal factor. In this case analog of "force"is proportional to the pressure. This "force"is chosen in the form of the linear law with a variable "stiffness"coefficient which is inversely to the square of the "displacement". This "displacement"is a new variable here which is connected with the Fiedman solution for the open Universe...
Сonstruction of cosmological models, exact open cosmological solutions, function of state, the open universe evolution
Короткий адрес: https://sciup.org/142216030
IDR: 142216030 | DOI: 10.17238/issn2226-8812.2018.1.4-12