Two-Fluid Cosmological Model of Bianchi Type-V with Negative Constant Deceleration Parameter

Singh, M. K.; Verma, Manoj Kumar; Ram, Shri

doi:10.1007/s10773-012-1323-3

Cited by 14 publications

(4 citation statements)

References 20 publications

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“…In this equation, c 3 represents a constant. From figure (12) we observed that pressure is negative which indicate universe is expanding.…”

Section: Energy Density For Mattermentioning

confidence: 89%

Two Fluids in f(T) Gravity with Observational Constraints

Pawar,

Gaikwad,

Ghungarwar

2023

Preprint

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In this study, we have examined the behavior of two fluids within the framework of $f(T)$ gravity, while taking into account observational constraints. Our focus was specifically on the Locally Rotationally Symmetric Bianchi-I Universe in the context of $f(T)$ theory of gravity. By investigating the evolution of the universe, we utilized various cosmological parameters, such as the deceleration parameter, equation of state parameter, density parameter, pressureand statefinder diagnostics. Additionally, we analyzed the geometric properties of the model. In the teleparallel theories, we derived the torsion scalar T from the given metric's torsion tensor.

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“…In this equation, c 3 represents a constant. From figure (12) we observed that pressure is negative which indicate universe is expanding.…”

Section: Energy Density For Mattermentioning

confidence: 89%

Two Fluids in f(T) Gravity with Observational Constraints

Pawar,

Gaikwad,

Ghungarwar

2023

Preprint

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“…Bainchi type IX two fluids cosmological models in General Relativity have obtained by Pawar and Dagwal [22]. Two-fluid cosmological model in Bianchi type V space time without variable G and Λ studied by Singh et al [23]. Two fluid cosmological models in Kaluza-Klein space time examined by Samanta [24].…”

Section: Introductionmentioning

confidence: 99%

“…Venkateswarlu [25] has presented Kaluza-Klein mesonic cosmological model with two-fluid source. Singh et al [26] have obtained two-fluid cosmological model of Bianchi type-V with negative constant deceleration parameter. Recently, two fluids tilted cosmological model in General Relativity and Axially Bianchi type-I mesonic cosmological models with two fluid sources in Lyra Geometry presented by Pawar and Dagwal [27]- [28].…”

Section: Introductionmentioning

confidence: 99%

Two fluid axially symmetric cosmological models in f(R,T) theory of gravitation

2016

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In this paper we have investigated two fluid axially symmetric cosmological models in $f(R, T)$ theory of gravitation. To get the deterministic model, we have assumed a supplementary condition $H_3=k H_1$, where $H_1$ and $H_3$ are Hubble parameters and $k$ is constant. Two-fluid model in $f(R, T)$ theory of gravitation, one fluid represents the matter content of the universe and another fluid is chosen to model the cosmic microwave background radiation. Some geometric aspects of the model are also discussed.

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“…There have been a number of studies of the deceleration parameter that aim to investigate the accelerated expansion of the universe. [8,9] In the 1980s, Berman and Gomide [10,11] proposed a law of variation for Hubble parameter within the context of Friedmann-Robertson-Walker (FRW) space times in general relativity that yields a constant deceleration parameter. In Berman's law, the deceleration parameter can get values −1 ≤ 𝑞 < 0, corresponding to the accelerating expansion.…”

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confidence: 99%

Oscillating Quintom Model with Time Periodic Varying Deceleration Parameter

Shen,

Zhao

2014

Chinese Phys. Lett.

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We propose a new law for the deceleration parameter that varies periodically with time. According to the law, we give a model of the oscillating universe with quintom matter in the framework of a 4-dimensional Friedmann—Robertson—Walker background. We find that, in the model, the Hubble parameter oscillates and keeps positive. The universe undergoes decelerating expansion and accelerating expansion alternately without singularity

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Two-Fluid Cosmological Model of Bianchi Type-V with Negative Constant Deceleration Parameter

Cited by 14 publications

References 20 publications

Two Fluids in f(T) Gravity with Observational Constraints

Two Fluids in f(T) Gravity with Observational Constraints

Two fluid axially symmetric cosmological models in f(R,T) theory of gravitation

Oscillating Quintom Model with Time Periodic Varying Deceleration Parameter

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