Investigation of the chiral cosmological model of f(R, oR) gravity
Автор: Chervon S.V., Fomin I.V., Chaadaeva T.I.
Журнал: Пространство, время и фундаментальные взаимодействия @stfi
Рубрика: Гравитация, космология и фундаментальные поля
Статья в выпуске: 2 (43), 2023 года.
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We study modified f (R, OR) gravity which can be reduced to the chiral cosmological model of the special type. Various types of cosmological solutions are considered based on exact analytical solutions, the slow-roll approximation, the superpotential method, the inclusion of additional material fields and reduction multi-field model to single-field one as well. Thus, this paper presents topical methods for analyzing cosmological models based on an effective multi-field interpretation of the proposed modified gravity.
Chiral cosmological model, 𝑓(𝑅, □𝑅) modified gravity, friedman universe
Короткий адрес: https://sciup.org/142239966
IDR: 142239966 | DOI: 10.17238/issn2226-8812.2023.2.54-67
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