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相关论文: Teleparallel Versions of Friedmann and Lewis-Papap…

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The teleparallel version of Lewis-Papapetrou space-time is investigated. For this space-time the true discussion of the geometric and physical properties is given. We show that the value of space-like torsion-axial vector does not depend on…

广义相对论与量子宇宙学 · 物理学 2020-03-02 A. S. Alofi , Ragab M Gad

This work contains the teleparallel version of the stationary axisymmetric solutions. We obtain the tetrad and the torsion fields representing these solutions. The tensor, vector and axial-vector parts of the torsion tensor are evaluated.…

广义相对论与量子宇宙学 · 物理学 2010-03-18 M. Sharif , M. Jamil Amir

In this paper, we find the teleparallel version of the Levi-Civita metric and obtain tetrad and the torsion fields. The tensor, vector and the axial-vector parts of the torsion tensor are evaluated. It is found that the vector part lies…

广义相对论与量子宇宙学 · 物理学 2009-01-14 M. Sharif , M. Jamil Amir

In the context of the teleparallel equivalent of general relativity, we obtain the tetrad and the torsion fields of the stationary axisymmetric Kerr spacetime. It is shown that, in the slow rotation and weak field approximations, the…

广义相对论与量子宇宙学 · 物理学 2009-11-07 J. G. Pereira , T. Vargas , C. M. Zhang

In this paper, Killing vectors of spherically spacetimes have been evaluated in the context of teleparallel theory of gravitation. Further, we investigate the Killing vectors of the Friedmann metrics. It is found that for static spherically…

广义相对论与量子宇宙学 · 物理学 2015-05-13 M. Sharif , Bushra Majeed

In this paper, we find the energy-momentum distribution of stationary axisymmetric spacetimes in the context of teleparallel theory by using M$\ddot{o}$ller prescription. The metric under consideration is the generalization of the Weyl…

广义相对论与量子宇宙学 · 物理学 2009-02-12 M. Sharif , M Jamil Amir

Teleparallel gravity theories employ a tetrad and a Lorentz spin connection as independent variables in their covariant formulation. In order to solve their field equations, it is helpful to search for solutions which exhibit certain…

广义相对论与量子宇宙学 · 物理学 2019-10-09 Manuel Hohmann , Laur Järv , Martin Krššák , Christian Pfeifer

In this work a tetrad theory of gravity, invariant under conformal transformations, is investigated. The action of the theory is similar to the action of Maxwell's electromagnetism. The role of the electromagnetic gauge potential is played…

广义相对论与量子宇宙学 · 物理学 2012-06-28 J. W. Maluf , F. F. Faria

A study of proper teleparallel conformal vector field in spherically symmetric static space-times is given using the direct integration technique and diagonal tetrads. In this study we show that the above space-times do not admit proper…

广义相对论与量子宇宙学 · 物理学 2016-03-18 Muhammad Amer Qureshi , Ghulam Shabbir , K S Mahomed

Teleparallel gravity models, in which the curvature and the nonmetricity of spacetime are both set zero, are widely studied in the literature. We work a different teleparallel theory, in which the curvature and the torsion of spacetime are…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Muzaffer Adak , Ozcan Sert

We study a cosmological model in the framework of teleparallel gravity, where a vector field $A_\mu$ is non-minimally coupled to the torsion scalar $T$ in a flat Friedmann-Robertson-Walker (FRW) universe. Using the Noether symmetry…

广义相对论与量子宇宙学 · 物理学 2025-08-26 Yusuf Kucukakca , Fereshteh Omidvar , Amin Rezaei Akbarieh

This paper is devoted to the evaluation of the energy-momentum density components for the Friedmann models. For this purpose, we have used M${\o}$ller's pseudotensor prescription in General Relativity and a certain energy-momentum density…

广义相对论与量子宇宙学 · 物理学 2011-01-27 M. Sharif , M. Jamil Amir

A review of the teleparallel equivalent of general relativity is presented. It is emphasized that general relativity may be formulated in terms of the tetrad fields and of the torsion tensor, and that this geometrical formulation leads to…

广义相对论与量子宇宙学 · 物理学 2013-03-19 J. W. Maluf

In the framework of teleparallel gravity, the Friedman-Robertson-Walker cosmological model with scalar tensor theory where scalar field is non-minimally coupled to both the torsion scalar and boundary term is studied. Utilizing the Noether…

广义相对论与量子宇宙学 · 物理学 2018-08-29 Ganim Gecim , Yusuf Kucukakca

An exact solution has an axial symmetry is obtained in the teleparallel theory of gravitation. The associated metric has the structure function G(xi)=1-xi^2-2mA(xi)^3. The cubic nature of the structure function can make calculations…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Gamal G. L. Nashed

We study the variational principle and derivation of the field equations for different classes of teleparallel gravity theories, using both their metric-affine and covariant tetrad formulations. These theories have in common that in…

广义相对论与量子宇宙学 · 物理学 2021-04-22 Manuel Hohmann

This paper investigates axially symmetric space-times that admit a homothetic vector field based on Lyra's geometry. The cases when the displacement vector is a function of $t$ and when it is constant are studied. In the context of this…

广义相对论与量子宇宙学 · 物理学 2018-04-03 Ragab M. Gad , A. E. Al Mazrooei

Teleparallel geometry utilizes Weitzenb\"ock connection which has nontrivial torsion but no curvature and does not directly follow from the metric like Levi-Civita connection. In extended teleparallel theories, for instance in $f(T)$ or…

广义相对论与量子宇宙学 · 物理学 2019-07-30 Laur Järv , Manuel Hohmann , Martin Krššák , Christian Pfeifer

We consider a Weyl-Lorentz-$U(1)$-invariant gravity model written in terms of a scalar field, electromagnetic field and nonmetricity without torsion and curvature, the so-called symmetric teleparallel geometry, in three dimensions. Firstly,…

广义相对论与量子宇宙学 · 物理学 2023-07-14 Muzaffer Adak , Nese Ozdemir , Caglar Pala

The stationary cosmological model without closed timelike curves of G\"odel type is obtained for the ideal dust matter source within the framework of the teleparallel gravity. For a specific choice of the teleparallel gravity parameters,…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Yu. N. Obukhov , T. Vargas
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