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相关论文: Complexity Factor For Static Anisotropic Self-Grav…

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In this paper, the notion of complexity factor and its implication is extended to the framework of non-conserved Rastall theory of gravity. First of all, the field equations governing a static spherical geometry associated with the…

广义相对论与量子宇宙学 · 物理学 2025-07-11 Tayyab Naseer

This paper investigates the complexity of a charged static sphere filled with anisotropic matter in the background of energy-momentum squared gravity. For this purpose, we evaluate the modified field and conservation equations to determine…

广义相对论与量子宇宙学 · 物理学 2022-05-19 M. Sharif , Ayesha Anjum

The main aim of this paper is to obtain analytic relativistic anisotropic spherical solutions in f(R,$\mathcal{T}$) scenario. To do so we use modified Durgapal-Fuloria metric potential and the isotropic condition is imposed in order to…

广义相对论与量子宇宙学 · 物理学 2020-02-19 S. K. Maurya , Francisco Tello-Ortiz

In this paper, we study the complexity factor for a charged anisotropic self-gravitating object. We formulate the Einstein-Maxwell field equations, Tolman-Opphenheimer-Volkoff equation, and the mass function. We form the structure scalars…

广义相对论与量子宇宙学 · 物理学 2018-09-26 M. Sharif , Iqra Ijaz Butt

In this paper, we investigate complexity of anisotropic cylindrical object under the influence of electromagnetic field in $f(G,T)$ theory, where $G$ and $T$ indicate the Gauss-Bonnet term and trace of the stress-energy tensor,…

广义相对论与量子宇宙学 · 物理学 2023-01-12 M. Sharif , Komal Hassan

We review a recently proposed definition of complexity of the structure of self--gravitating fluids \cite{ch1}, and the criterium to define the simplest mode of their evolution. We analyze the origin of these concepts and their possible…

广义相对论与量子宇宙学 · 物理学 2023-04-13 L. Herrera

This study explores the application of complexity factor within the context of Rastall gravity, exploring its implications on a static spacetime admitting spherical symmetry associated with anisotropic fluids under an electromagnetic field.…

广义相对论与量子宇宙学 · 物理学 2025-08-20 Tayyab Naseer

This paper is the first in a sequence of three devoted to the formulation of a theory of self-gravitating anisotropic fluids in both Newtonian and relativistic gravity. In this first paper we set the stage, place our work in the context of…

广义相对论与量子宇宙学 · 物理学 2024-06-06 Tom Cadogan , Eric Poisson

In this paper, a complexity factor is devised for a non-static cylindrical system in the framework of massive Brans-Dicke theory. The definition of complexity is developed by taking into account the essential physical characteristics (such…

广义相对论与量子宇宙学 · 物理学 2021-06-18 M. Sharif , Amal Majid

In this work, we introduce the {\it complexity factor} in the context of self--gravitating fluid distributions for the case of black holes by employing the Newman-Penrose formalism. In particular, by working with spherically symmetric and…

广义相对论与量子宇宙学 · 物理学 2022-09-21 P. Bargueño , E. Fuenmayor , E. Contreras

In this paper, we have analyzed the stability of cylindrically symmetric collapsing object filled with locally anisotropic fluid in $f(R,T)$ theory, where $R$ is the scalar curvature and $T$ is the trace of stress-energy tensor of matter.…

综合物理 · 物理学 2018-11-15 M. Zubair , Hina Azmat , Ifra Noureen

We investigate spherically symmetric classes of anisotropic solutions within the realm of a schematic gravitational decoupling scheme, primarily decoupling through minimal geometric deformation, applied to non-rotating, ultra-compact,…

广义相对论与量子宇宙学 · 物理学 2024-08-23 Z. Yousaf , Kazuharu Bamba , Bander Almutairi , S. Khan , M. Z. Bhatti

This paper is devoted to investigate the cylindrical collapse of an anisotropic fluid in $f(R)$ gravity. For this purpose, the viscous charged anisotropic fluid dissipating energy with heat flow and shear is assumed. We use the perturbation…

广义相对论与量子宇宙学 · 物理学 2017-12-07 M. Farasat Shamir , M. Atif Fayyaz

This is the third and final entry in a sequence of papers devoted to the formulation of a theory of self-gravitating anisotropic fluids in Newtonian gravity and general relativity. In this third paper we elevate the Newtonian theory of the…

广义相对论与量子宇宙学 · 物理学 2024-06-06 Tom Cadogan , Eric Poisson

In this paper, we study the complexity factor of a static anisotropic sphere in the context of self-interacting Brans-Dicke theory. We split the Riemann tensor using Bel's approach to obtain structure scalars relating to comoving congruence…

广义相对论与量子宇宙学 · 物理学 2019-10-23 M. Sharif , Amal Majid

In this paper, we investigate spherically symmetric perfect fluid gravitational collapse in metric $f(R)$ gravity. We take non-static spherically symmetric metric in the interior region and static spherically symmetric metric in the…

广义相对论与量子宇宙学 · 物理学 2011-01-17 M. Sharif , H. Rizwana Kausar

We consider the modified $f(R)$ theory of gravity whose higher order curvature terms are interpreted as a gravitational fluid or dark source. The gravitational collapse of a spherically symmetric star, made up of locally anisotropic viscous…

广义相对论与量子宇宙学 · 物理学 2015-05-30 M. Sharif , H. Rizwana Kausar

In the present paper, we discuss the role of gravitational decoupling to isotropize the anisotropic solution of Einstein's field equations in the context of the complete geometric deformation (CGD) approach and its influence on the…

广义相对论与量子宇宙学 · 物理学 2022-02-09 S. K. Maurya , Riju Nag

This article focuses on the formulation of some scalar factors which are uniquely expressed in terms of matter variables for dynamical charged dissipative cylindrical geometry in a standard gravity model $\mathcal{R}+\Phi\mathcal{Q}$…

广义相对论与量子宇宙学 · 物理学 2022-09-05 M. Sharif , Tayyab Naseer

This paper focuses on the analysis of static spherically symmetric anisotropic solutions in the presence of electromagnetic field through the gravitational decoupling approach in…

广义相对论与量子宇宙学 · 物理学 2024-03-04 M. Sharif , T. Naseer