FRW domain walls in modified f(G) theory of gravitation

In this paper, we have studied Friedmann-Robertson-Walker space-time in the presence of domain walls in the framework of f(G) theory of gravitation. We propose the generalization of linearly varying deceleration parameter. It is observed that the universe is accelerating and expanding. The values of state finder parameters are close to Λ CDM model. Some physical parameters of the obtained models are discussed in detail. В статье исследуется пространство-время Фридмана-Робертсона-Уокера при наличии доменных стенок в рамках f(G)-теории гравитации. Предлагается обобщение линейно изменяющегося параметра замедления. Отмечается, что Вселенная ускоряется и расширяется. Значения параметра {r, s} близки к модели Λ CDM . Подробно обсуждаются некоторые физические параметры полученных моделей.

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Երևան

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ՀՀ ԳԱԱ «Գիտություն» հրատ.

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oai:arar.sci.am:267875

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ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան

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Gravitation Domain walls FRW f(G) gravity

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Feb 24, 2025

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https://arar.sci.am/publication/291751

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Աստղաֆիզիկա =Астрофизика = Astrophysics

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Katore, S. D., FRW domain walls in modified f(G) theory of gravitation	Feb 24, 2025

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