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相关论文: Noether symmetry analysis of anisotropic universe …

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The Noether symmetry analysis is applied for the analysis of the field equations in an anisotropic background in $f(T,B)$-theory. We consider the $f\left( T,B\right) =T+F\left( B\right) $ which describes a small deviation from TEGR…

广义相对论与量子宇宙学 · 物理学 2022-07-19 Andronikos Paliathanasis

In this paper, we study anisotropic universe using Noether symmetries in modified gravity. In particular, we choose locally rotationally symmetric Bianchi type-$I$ universe for the analysis in $f(R,\mathcal{G})$ gravity, where $R$ is the…

广义相对论与量子宇宙学 · 物理学 2017-05-18 M. Farasat Shamir , Fiza Kanwal

In this paper, we present the Noether symmetries of locally rotationally symmetric Bianchi type I (LRS BI), an anisotropic model, in the context of the teleparallel gravity. We study a certain modified teleparallel theory based on the…

广义相对论与量子宇宙学 · 物理学 2017-05-12 Behzad Tajahmad

As it is well known, symmetry plays a crucial role in the theoretical physics. On other hand, the Noether symmetry is a useful procedure to select models motivated at a fundamental level, and to discover the exact solution to the given…

综合物理 · 物理学 2018-01-16 Ali Aghamohammadi

This paper deals with the study of Bianchi type-I universe in the context of Nash gravity by using the Noether symmetry approach. We shortly revisit the Nash theory of gravity. We make a short recap of the Noether symmetry approach and…

综合物理 · 物理学 2019-03-12 Phongpichit Channuie , Davood Momeni , Mudhahir Al Ajmi

In this paper, we present the Noether symmetries of a class of the Bianchi type I anisotropic model in the context of f(T) gravity. By solving the system of equations obtained from the Noether symmetry condition, we obtain the form of f(T)…

广义相对论与量子宇宙学 · 物理学 2013-08-05 Adnan Aslam , Mubasher Jamil , Ratbay Myrzakulov

That is the first part of a series of studies on analyzing the higher-order teleparallel theory of gravity known as the $f(T, B)$-theory. This work attempts to understand how the anisotropic spacetimes are involved in the $f(T, B)$-theory.…

广义相对论与量子宇宙学 · 物理学 2022-07-19 Andronikos Paliathanasis

We study the locally rotational symmetry Bianchi type-I dark energy model in the framework of $f(T)$ theory of gravity, where $T$ denotes the torsion scalar. A viable cosmological model is undertaken and the isotropization of this latter is…

广义相对论与量子宇宙学 · 物理学 2014-01-13 M. E. Rodrigues , I. G. Salako , M. J. S. Houndjo , J. Tossa

This paper explores Noether and Noether gauge symmetries of anisotropic universe model in $f(R,T)$ gravity. We consider two particular models of this gravity and evaluate their symmetry generators as well as associated conserved quantities.…

综合物理 · 物理学 2017-05-24 M. Sharif , Iqra Nawazish

This manuscript is devoted to investigate Bianchi Type $I$ universe in the context of $f(R,T)$ gravity. For this purpose, we explore the exact solutions of locally rotationally symmetric Bianchi type $I$ spacetime. The modified field…

综合物理 · 物理学 2015-08-07 M. Farasat Shamir

This paper is devoted to investigate the recently proposed modified Gauss-Bonnet $f(\mathcal{G},T)$ gravity, with $\mathcal{G}$, the Gauss-Bonnet term, coupled with ${T}$, the trace of energy-momentum tensor. We have used the Noether…

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

The main objective of this article is to examine some physically viable solutions through the Noether symmetry technique in $f(R, T^{2})$ theory. For this purpose, we assume a generalized anisotropic and homogenous spacetime that yields…

广义相对论与量子宇宙学 · 物理学 2023-06-14 M. Sharif , M. Zeeshan Gul

The Noether symmetry approach is useful tool to restrict the arbitrariness in a gravity theory when the equations of motion are underdetermined due to the high number of functions to be determined in the ansatz. We consider two…

广义相对论与量子宇宙学 · 物理学 2016-05-11 U. Camci , A. Yildirim , I. Basaran Oz

Following up on hints of anisotropy in the cosmic microwave background radiation (CMB) data, we investigate locally rotational symmetric (LRS) Bianchi type I spacetimes with non-minimally coupled scalar fields. To single out potentially…

广义相对论与量子宇宙学 · 物理学 2015-06-04 Y. Kucukakca , U. Camci , İ. Semiz

The Noether Symmetry approach is applied to study an extended teleparallel $f(T,\phi)$ gravity that contains the torsion scalar $T$ and the scalar field $\phi$ in the context of an Friedmann-Lema\^{i}tre-Robertson-Walker space-time. We…

广义相对论与量子宇宙学 · 物理学 2023-07-19 L. K. Duchaniya , B. Mishra , Jackson Levi Said

In this paper, we investigate the generalized Saez-Ballester scalar-tensor theory of gravity via Noether gauge symmetry (NGS) in the background of Bianchi type I cosmological spacetime. We start with the Lagrangian of our model and…

综合物理 · 物理学 2012-04-27 Mubasher Jamil , Sajid Ali , D. Momeni , R. Myrzakulov

We consider the cosmology derived from $f(T,B)$ gravity where $T$ is the torsion scalar and $B=\frac{2}{e}\partial_{\mu}(e T^{\mu})$ a boundary term. In particular we discuss how it is possible to recover, under the same standard, the…

广义相对论与量子宇宙学 · 物理学 2017-03-08 Sebastian Bahamonde , Salvatore Capozziello

Extended $f(R)$ theories of gravity have been investigated from the symmetry point of view. We briefly has been investigated Noether symmetry of two types of extended $f(R)$ theories: $f(R,T)$ theory, in which curvature is coupled non…

广义相对论与量子宇宙学 · 物理学 2018-10-09 D. Momeni , R. Myrzakulov , E. Güdekli

This paper is devoted to investigate the exact solutions of Bianchi type $I$ spacetime in the context of $f(R,T)$ gravity [1], where $f(R,T)$ is an arbitrary function of Ricci scalar $R$ and trace of the energy momentum tensor $T$. For this…

广义相对论与量子宇宙学 · 物理学 2015-06-30 M. Farasat Shamir

We use our N\"other Symmetry Approach to study the Einstein equations minimally coupled with a scalar field, in the case of Bianchi universes of class A and B. Possible cases, when such symmetries exist, are found and two examples of exact…

广义相对论与量子宇宙学 · 物理学 2011-05-19 Salvatore Capozziello , Giuseppe Marmo , Claudio Rubano , Paolo Scudellaro
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