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In this study, we treat intrinsic Finsler geometry using the Klein-Grifone approach (KG-approach). A uniqueness and existence theorem for the Hashiguchi connection on a Finsler manifold is investigated intrinsically (in coordinate-free…

Differential Geometry · Mathematics 2025-06-12 S. G. Elgendi , A. Soleiman

I do not agree with the authors of papers arXiv:0806.2184 and arXiv:0901.1023v1 (published in Phys. Lett., respectively, B668 (2008) 453 and B676 (2009) 173). They consider that \textit{"In Finsler manifold, there exists a unique linear…

General Relativity and Quantum Cosmology · Physics 2010-07-23 Sergiu I. Vacaru

The Klein-Grifone approach to global Finsler geometry is adopted. The nullity distributions of the three curvature tensors of Cartan connection are investigated. Nullity distributions concerning certain relevant special Finsler spaces are…

Differential Geometry · Mathematics 2016-10-24 Nabil L. Youssef , A. Soleiman , S. G. Elgendi

Adopting the pullback approach to global Finsler geometry, the aim of the present paper is to provide intrinsic (coordinate-free) proofs of the existence and uniqueness theorems for the Chern (Rund) and Hashiguchi connections on a Finsler…

Differential Geometry · Mathematics 2013-04-30 Nabil L. Youssef , S. H. Abed , A. Soleiman

We give an introduction to (pseudo-)Finsler geometry and its connections. For most results we provide short and self contained proofs. Our study of the Berwald non-linear connection is framed into the theory of connections over general…

Mathematical Physics · Physics 2014-12-01 E. Minguzzi

Finsler geometry is a natural and fundamental generalization of Riemann geometry. The Finsler structure depends on both coordinates and velocities. It is defined as a function on tangent bundle of a manifold. We use the Bianchi identities…

General Relativity and Quantum Cosmology · Physics 2007-11-14 Xin Li , Zhe Chang

The aim of the present paper is to establish a global theory of conformal changes in Finsler geometry. Under this change, we obtain the relationships between the most important geometric objects associated to $(M,L)$ and the corresponding…

Differential Geometry · Mathematics 2008-08-14 Nabil L. Youssef , S. H. Abed , A. Soleiman

Recently the present authors introduced a general class of Finsler connections which leads to a smart representation of connection theory in Finsler geometry and yields to a classification of Finsler connections into the three classes. Here…

Differential Geometry · Mathematics 2009-02-03 B. Bidabad , A. Tayebi

Some general Finsler connections are defined. Emphasis is being made on the Cartan tensor and its derivatives. Vanishing of the hv-curvature tensors of these connections characterizes Landsbergian, Berwaldian as well as Riemannian…

Differential Geometry · Mathematics 2007-10-16 B. Bidabad , A. Tayebi

We consider the Chern connection of a (conic) pseudo-Finsler manifold $(M,L)$ as a linear connection $\nabla^V$ on any open subset $\Omega\subset M$ associated to any vector field $V$ on $\Omega$ which is non-zero everywhere. This…

Differential Geometry · Mathematics 2014-02-04 Miguel Angel Javaloyes

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

In this note, we give the correct statements of [2,Proposition 3.3 and Theorem 3.4] and a formula of the Chern curvature in terms of the curvature tensor $R^V$ of the affine connection $\nabla^V$ and the Chern tensor $P$.

Differential Geometry · Mathematics 2014-09-15 Miguel Angel Javaloyes

Derdzinski and Shen's theorem on the restrictions posed by a Codazzi tensor on the Riemann tensor holds more generally when a Riemann-compatible tensor exists. Several properties are shown to remain valid in this broader setting. Riemann…

Differential Geometry · Mathematics 2012-11-30 C. A. Mantica , L. G. Molinari

The aim of the present paper is to provide a global presentation of the theory of special Finsler manifolds. We introduce and investigate globally (or intrinsically, free from local coordinates) many of the most important and most commonly…

Differential Geometry · Mathematics 2009-04-20 Nabil L. Youssef , S. H. Abed , A. Soleiman

In the standard approach to Finsler geometry the metric is defined as a vertical Hessian and the Chern or Cartan connections appear as just two among many possible natural linear connections on the pullback tangent bundle. Here it is shown…

Differential Geometry · Mathematics 2023-08-14 E. Minguzzi

We define a symmetry for a Finsler space with Chern connection and investigate its implementation and properties and find a relation between them and flag curvature.

Differential Geometry · Mathematics 2007-06-26 Dariush Latifi , Asadollah Razavi

On a Hermitian manifold, the Chern connection can induce a metric connection on the background Riemannian manifold. We call the sectional curvature of the metric connection induced by the Chern connection the Chern sectional curvature of…

Differential Geometry · Mathematics 2024-03-20 Pandeng Cao , Hongjun Li

In this paper we provide a \emph{global} investigation of the geometry of parallelizable manifolds (or absolute parallelism geometry) frequently used for application. We discuss the different linear connections and curvature tensors from a…

General Relativity and Quantum Cosmology · Physics 2015-06-11 Nabil L. Youssef , Waleed A. Elsayed

In this paper we adopt the pullback approach to global Finsler geometry. We investigate horizontally recurrent Finsler connections. We prove that for each scalar ($\pi$)1-form $A$, there exists a unique horizontally recurrent Finsler…

Differential Geometry · Mathematics 2017-06-26 Nabil L. Youssef , A. Soleiman

Let $R$ be the $hh$-curvature associated with the Chern connection or the Cartan connection. Adopting the pulled-back tangent bundle approach to the Finslerian Geometry, an intrinsic characterization of $R$-Einstein metrics is given.…

Differential Geometry · Mathematics 2022-03-22 Serge Degla , Gilbert Nibaruta , Léonard Todjihounde
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