Bianchi Type-III String Cosmological Model with Bulk Viscous Fluid in Lyra Geometry

Sahoo, P. K.; Nath, Anasuya; Sahu, Sudhakar

doi:10.1007/s40995-017-0214-0

Cited by 14 publications

(4 citation statements)

References 51 publications

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“…However, more realistic models are based on n lying in the regime 2 1 0   r . On using (36) in (34), we obtain the following relation for proper pressure:…”

Section: Physical Parametersmentioning

confidence: 99%

See 1 more Smart Citation

Accelerating Universe with Viscous Cosmic String in Quadratic Form of Teleparallel Gravity

Bhoyar¹,

Chirde²,

Shekh³

2019

J. Sci. Res.

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In this paper, we have investigated Kantowaski-Sachs cosmological model with bulk viscous and cosmic string in the framework of Teleparallel Gravity so called f(T) gravity, where T denotes the torsion scalar. The behavior of accelerating universe is discussed towards the particular choice of f(T) = Α(T) + β(T)m. The exact solutions of the field equations are obtained by applying variable deceleration parameter which is linear in time with a negative slope. The physical behavior of these models has been discussed using some physical quantities. Also, the function of the torsion scalar for the universe is evaluated.

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“…However, more realistic models are based on n lying in the regime 2 1 0   r . On using (36) in (34), we obtain the following relation for proper pressure:…”

Section: Physical Parametersmentioning

confidence: 99%

“…Mahanta et al [33] discussed about the bulk viscous string cloud with strange quark matter in Brans-Dicke theory. Sahoo et al [34] talk over Bianchi Type-III String Cosmological Model with bulk viscous fluid in Lyra Geometry.…”

Section: Introductionmentioning

confidence: 99%

Accelerating Universe with Viscous Cosmic String in Quadratic Form of Teleparallel Gravity

Bhoyar¹,

Chirde²,

Shekh³

2019

J. Sci. Res.

View full text Add to dashboard Cite

show abstract

“…Various cosmic aspects are described in the Refs. [29][30][31][32][33][34][35], which derive from the modifications that are prescribed by two different MGTs (f (R), f (R, T )). These modifications include the formation and viability of star configurations; the existence of comparably large compact entities; the conformity of expansion of the universe; anisotropic and viscous solutions; the famous Raychaudhary equations; and others.…”

Section: Introductionmentioning

confidence: 99%

“…Afterwards Houndjo [24] used f (R, T) gravity to reconstruct different cosmological solutions by examining various formulations inferred by the definite configurations such as f (R, T) = f 1 (R) + f 2 (T) and proposed a particular selection for scale-factor to illustrate expansion of the Universe. Some cosmological features are presented in [25][26][27][28][29][30][31] which originates from the corrections imposed by two theories of gravity f (R) and f (R, T). These corrections are listed as: composition and feasibility of stellar structure, presence of comparatively massive compact objects, uniformity of the Universe's expansion, viscosity and anisotropy solutions and Raychaudhary equations and so forth.…”

Section: Introductionmentioning

confidence: 99%

Some specific wormhole solutions in f(R, T) gravity

Ilyas¹,

Athar²

2022

Phys. Scr.

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In this research, we considered a specific model in the framework of f(R,T) gravity to investigate the feasibility of wormhole geometries coupled with the relativistic configurations of matter, where T stands for the trace of the energy-momentum tensor. In order to evaluate this, we examine different energy conditions (ECs) by considering static space-time geometry which is spherically symmetric and by supposing a specific matter configuration and sequence of shape functions (β(r)). We analyzed wormhole models in the background of the equilibrium state by using an anisotropic fluid, and then presented our findings in a graphical format. The quantities of extra curvature generated by f(R,T) gravity could be understood as a gravitational entity that supports these astrophysical wormhole scenarios, which are non-standard. Our results suggest that, for certain zones in the parameters space, wormholes could arise in the presence of isotropic fluid and a conservative modification of GR as f(R,T)=R+αγ[(1+\frac{R^2}{\gamma^2}\right)^{-q}-1\right]+λT, without requiring exotic matter.

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Multi-objective optimization of cylindrical shell structure with local viscoelastic damping patch for minimum vibration response and lightest attachment mass

Sun

Chen

2022

Struct Multidisc Optim

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Bianchi Type-III String Cosmological Model with Bulk Viscous Fluid in Lyra Geometry

Cited by 14 publications

References 51 publications

Accelerating Universe with Viscous Cosmic String in Quadratic Form of Teleparallel Gravity

Accelerating Universe with Viscous Cosmic String in Quadratic Form of Teleparallel Gravity

Some specific wormhole solutions in f(R, T) gravity

Multi-objective optimization of cylindrical shell structure with local viscoelastic damping patch for minimum vibration response and lightest attachment mass

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