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相关论文: A general interior anisotropic solution for a BTZ …

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We study the minimal geometric deformation decoupling in $2+1$ dimensional space--times and implement it as a tool for obtaining anisotropic solutions from isotropic geometries. Interestingly, both the isotropic and the anisotropic sector…

广义相对论与量子宇宙学 · 物理学 2019-07-03 Ernesto Contreras , Pedro Bargueño

In this work we extend the so--called Minimal Geometric Deformation method in $2+1$ dimensional space--times with cosmological constant in order to deal with the gravitational decoupling of two circularly symmetric sources. We find that,…

广义相对论与量子宇宙学 · 物理学 2019-10-15 E. Contreras , P. Bargueño

In this work we implement the Minimal Geometric Deformation method to obtain the isotropic sector and the decoupler matter content of any anisotropic solution of the Einstein field equations with cosmological constant in $2+1$ dimensional…

广义相对论与量子宇宙学 · 物理学 2019-06-28 Ernesto Contreras

This work employs the minimal geometric deformation decoupling scheme to derive interior stellar solutions in the background of an electrically charged BTZ ansatz as a seed metric in three dimensions. In this respect, we impose two…

广义相对论与量子宇宙学 · 物理学 2026-01-27 Z. Yousaf , Kazuharu Bamba , Mansoor Alshehri , S. Khan , M. Z. Bhatti

This work is focused in the study of analytic anisotropic solutions to Einstein's field equations, describing spherically symmetric and static configurations by way of the gravitational decoupling through the method of Minimal Geometric…

广义相对论与量子宇宙学 · 物理学 2019-03-27 Milko Estrada , Francisco Tello-Ortiz

By using the gravitational decoupling through the minimal geometric deformation approach (MGD-decoupling), we show a simple and powerful method to generate physically acceptable exact analytical solutions for anisotropic stellar…

广义相对论与量子宇宙学 · 物理学 2018-11-06 J Ovalle , A Sotomayor

In this paper we show that any static and spherically symmetric anisotropic solution of the Einstein field equations can be thought as a system sourced by certain deformed isotropic system in the context of Minimal Geometric…

广义相对论与量子宇宙学 · 物理学 2018-09-26 Ernesto Contreras

We employ the minimal geometric deformation approach to gravitational decoupling (MGD- decoupling) in order to build an exact anisotropic version of the Schwarzschild interior solution in a space-time with cosmological constant. Contrary to…

广义相对论与量子宇宙学 · 物理学 2019-06-26 L. Gabbanelli , J. Ovalle , A. Sotomayor , Z. Stuchlik , R. Casadio

In the context of the Minimal Geometric Deformation method, in this paper we implement the inverse problem in a black hole scenario. In order to deal with an anisotropic polytropic black hole solution of the Einstein field equations with…

广义相对论与量子宇宙学 · 物理学 2018-12-04 Ernesto Contreras , Pedro Bargueño

Simple generic extensions of isotropic Durgapal--Fuloria stars to the anisotropic domain are presented. These anisotropic solutions are obtained by guided minimal deformations over a self gravitating isotropic system. When the isotropic and…

广义相对论与量子宇宙学 · 物理学 2018-07-04 Luciano Gabbanelli , Ángel Rincón , Carlos Rubio

In the present paper we consider anisotropic cosmological vacuum solutions in (4+1) dimensional general quadratic gravity. In particular, we present a solution with 3 equal and 1 different Hubble parameters, and study its stability. We show…

广义相对论与量子宇宙学 · 物理学 2026-03-04 Daniel Müller , Alexey Toporensky

We introduce a new type of generating theorems in General Relativity for anisotropic, static, spherically symmetric solutions of the Einstein field equations. The results are used to derive a class of solutions that can serve as new models…

广义相对论与量子宇宙学 · 物理学 2026-04-14 Paulo Luz , Sante Carloni

We investigate the extension of isotropic interior solutions for static self-gravitating systems to include the effects of anisotropic spherically symmetric gravitational sources by means of the gravitational decoupling realised via the…

广义相对论与量子宇宙学 · 物理学 2018-02-13 J Ovalle , R Casadio , R da Rocha , A Sotomayor

We study the Einstein static universe in the framework of Generalized Uncertainty Principle constructed by the Snyder non-commutative space. It is shown that the deformation parameter can induce an effective energy density subject to GUP…

广义相对论与量子宇宙学 · 物理学 2019-05-01 F. Darabi , K. Atazadeh

The aim of this work is to obtain new analitical solutions for Einstein equations in the anisotropical domain. This will be done via the minimal geometric deformation (MGD) approach, which is a simple and systematical method that allow us…

广义相对论与量子宇宙学 · 物理学 2018-08-21 C. Las Heras , P. Leon

We construct spherically symmetric, static solutions to the Einstein-Vlasov system with non-vanishing cosmological constant $\Lambda$. The results are divided as follows. For small $\Lambda>0$ we show existence of globally regular solutions…

广义相对论与量子宇宙学 · 物理学 2014-09-19 Håkan Andréasson , David Fajman , Maximilian Thaller

We use gravitational decoupling to establish a connection between the minimal geometric deformation approach and the standard method for obtaining anisotropic fluid solutions. Motivated by the relations that appear in the framework of…

广义相对论与量子宇宙学 · 物理学 2020-03-04 Gabriel Abellán , Victor Torres , Ernesto Fuenmayor , Ernesto Contreras

In the present paper, we analyze the well-known 2+1 dimensional black holes (assuming a non-vanishing cosmological constant) in light of the gravitational decoupling by the minimal geometric deformation approach. To illustrate our results,…

广义相对论与量子宇宙学 · 物理学 2020-06-24 Angel Rincon , Ernesto Contreras , Francisco Tello-Ortiz , Pedro Bargueño , Gabriel Abellán

We implement the Gravitational Decoupling through the Minimal Geometric Deformation method and explore its effect on exterior solutions by imposing a regularity condition in the Tolman--Oppenheimer--Volkoff equation of the decoupling…

广义相对论与量子宇宙学 · 物理学 2020-10-09 Ernesto Contreras , Francisco Tello-Ortiz , S. K. Maurya

Lower dimensional gravity has the potential of providing non-trivial and valuable insight into some of the conceptual issues arising in four dimensional relativistic gravitational analysis. The asymptotically anti-de Sitter (2+1)…

广义相对论与量子宇宙学 · 物理学 2011-09-21 Ranjan Sharma , Farook Rahaman , Indrani Karar
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