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Related papers: A Global Approach to Absolute Parallelism Geometry

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In this paper we discuss curvature tensors in the context of Absolute Parallelism geometry. Different curvature tensors are expressed in a compact form in terms of the torsion tensor of the canonical connection. Using the Bianchi identities…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Nabil L. Youssef , Amr M. Sid-Ahmed

In this paper, we deal with a generalization of the geometry of parallelizable manifolds, or the absolute parallelism (AP-) geometry, in the context of generalized Lagrange spaces. All geometric objects defined in this geometry are not only…

General Relativity and Quantum Cosmology · Physics 2008-05-02 M. I. Wanas , N. L. Youssef , A. M. Sid-Ahmed

Absolute parallelism geometry is frequently used for physical applications. It has two main defects, from the point of view of applications. The first is the identical vanishing of its curvature tensor. The second is that its autoparallel…

General Relativity and Quantum Cosmology · Physics 2014-11-17 M. I. Wanas

In this paper, we study Absolute Parallelism (AP-) geometry on the tangent bundle $TM$ of a manifold $M$. Accordingly, all geometric objects defined in this geometry are not only functions of the positional argument $x$, but also depend on…

Differential Geometry · Mathematics 2015-05-13 Nabil. L. Youssef , A. M. Sid-Ahmed

Absolute parallelism (AP) geometry is frequently used for physical applications. Although it is wider than Riemannian geometry, it has two main defects. The first is that its path equation does not represent physical trajectories of any…

General Relativity and Quantum Cosmology · Physics 2007-05-23 M. I. Wanas

We give coordinate formula and geometric description of the curvature of the tensor product connection of linear connections on vector bundles with the same base manifold. We define the covariant differential of geometric fields of certain…

Differential Geometry · Mathematics 2007-05-23 Janyska Josef

It is shown that the geometry of parallelizable manifolds can be extended to non-parallelizable ones by extending the connection that a global frame field would define on a parallelizable manifold to a connection that a singular frame field…

General Relativity and Quantum Cosmology · Physics 2018-09-11 D. H. Delphenich

The aim of the present paper is to construct and investigate a Finsler structure within the framework of a Generalized Absolute Parallelism space (GAP-space). The Finsler structure is obtained from the vector fields forming the…

Differential Geometry · Mathematics 2013-07-16 Nabil L. Youssef , Amr M. Sid-Ahmed , Ebtsam H. Taha

This paper constructs the geometrically natural objects which are associated with any projection tensor field on a manifold with any affine connection. The approaches to projection tensor fields which have been used in general relativity…

General Relativity and Quantum Cosmology · Physics 2009-10-22 Robert H. Gowdy

A teleparallel geometry is an n-dimensional manifold equipped with a frame basis and an independent spin connection. For such a geometry, the curvature tensor vanishes and the torsion tensor is non-zero. A straightforward approach to…

General Relativity and Quantum Cosmology · Physics 2021-05-14 D. D. McNutt , A. A. Coley , R. J. van den Hoogen

A decomposition theorem is established for a class of closed Riemannian submanifolds immersed in a space form of constant sectional curvature. In particular, it is shown that if $M$ has nonnegative sectional curvature and admits a Codazzi…

Differential Geometry · Mathematics 2020-10-02 Anthony Gruber

The Bazanski approach, for deriving the geodesic equations in Riemannian geometry, is generalized in the absolute parallelism geometry. As a consequence of this generalization three path equations are obtained. A striking feature in the…

General Relativity and Quantum Cosmology · Physics 2009-11-07 M. I. Wanas , M. Melek , M. E. Kahil

Generalized Berwald manifolds are Finsler manifolds admitting linear connections such that the parallel transports preserve the Finslerian length of tangent vectors. By the fundamental result of the theory \cite{V5} such a linear connection…

Differential Geometry · Mathematics 2019-03-18 Csaba Vincze

An absolute parallelism (AP-) space having Finslerian properties is called FAP-space. This FAP-structure is more wider than both conventional AP and Finsler structures. In the present work, more geometric objects as curvature and torsion…

General Relativity and Quantum Cosmology · Physics 2011-09-15 M. I. Wanas , Mona M. Kamal

Almost hypercomplex manifolds with Hermitian and anti-Hermitian metrics are considered. A linear connection $D$ is introduced such that the structure of these manifolds is parallel with respect to D. Of special interest is the class of the…

Differential Geometry · Mathematics 2012-05-08 Mancho Manev

Using the theory of extensors developed in a previous paper we present a theory of the parallelism structure on arbitrary smooth manifold. Two kinds of Cartan connection operators are introduced and both appear in intrinsic versions (i.e.,…

Mathematical Physics · Physics 2007-05-23 V. V. Fernandez , A. M. Moya , E. Notte-Cuello , W. A. Rodrigues

Generalized Berwald manifolds are Finsler manifolds admitting linear connections such that the parallel transports preserve the Finslerian length of tangent vectors (compatibi\-li\-ty condition). By the fundamental result of the theory…

Differential Geometry · Mathematics 2019-09-10 Csaba Vincze

The aim of the present paper is to provide an \emph{intrinsic} investigation of the properties of the most important geometric objects associated with the fundamental linear connections in Finsler geometry. We investigate intrinsically the…

Differential Geometry · Mathematics 2014-11-18 Nabil L. Youssef , S. H. Abed , A. Soleiman

We construct a framework within which a mathematically precise, fully covariant, and exact averaging procedure for tensor fields on a manifold can be formulated. In particular, we introduce the Weitzenb\"ock connection for parallel…

General Relativity and Quantum Cosmology · Physics 2015-05-18 Johan Brannlund , Robert van den Hoogen , Alan Coley

Let M be a simply connected Riemannian symmetric space, with at most one flat direction. We show that every Riemannian (or unitary) vector bundle with parallel curvature over M is an associated vector bundle of a canonical principal bundle,…

dg-ga · Mathematics 2007-05-23 Luis Guijarro , Lorenzo Sadun , Gerard Walschap
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