activity
20122026
most citedSemi Concurrent vector fields in Finsler geometry

6 citations · 15 across the 20 of their papers we have counts for

collaborators

20 papers

math.DG2026

Golden Finsler Geometry: Local Properties and Global Deformations

Ebtsam H. Taha, Bankteshwar Tiwari, A. Soleiman

We introduce the concept of a golden Finsler structure on a finite-dimensional smooth manifold and investigate it from both local (coordinate-based) and global (coordinate-free…

math.DG2025

On Generalized Matsumoto Metrics with a Special -form

A. Soleiman, Ebtsam H. Taha

We explore a generalization of Matsumoto metric intrinsically. Given a Finsler manifold which admits a concurrent -vector field , we consider the change $\wi…

math.DG2025

On the generalized -Kropina metrics

Ebtsam H. Taha

Generalized -Kropina metrics appear naturally as a spacetime geometry compatible with Lorentz symmetry breaking, leading to useful applications in modified gravity and cosmology…

math.DG2025

A Concurrent Generalized Kropina Change

A. Soleiman, Ebtsam H. Taha

This paper investigates a generalized Kropina metric featuring a specific -form. Start with a Finsler manifold admits a concurrent -vector field , then, e…

math.DG2025

Special anisotropic conformal changes of conic pseudo-Finsler surfaces

Nabil L. Youssef, Ebtsam H. Taha, A. A. Kotb +1

This study presents many special anisotropic conformal changes of a conic pseudo-Finsler surface , such as -anisotropic and horizontal -anisotropic conformal transform…

math.DG2025

Anisotropic conformal change of conic pseudo-Finsler surfaces, II

Nabil L. Youssef, S. G. Elgendi, A. A. Kotb +1

This paper is a continuation of our investigation of the anisotropic conformal change of a conic pseudo-Finsler surface , namely, the change $\overline{F}(x,y)=e^{ϕ(x,y)}F(x…

math.DG2024

Anisotropic conformal change of conic pseudo-Finsler surfaces, I

S. G. Elgendi, Nabil L. Youssef, A. A. Kotb +1

The present work is devoted to investigate anisotropic conformal transformation of conic pseudo-Finsler surfaces , that is, $ F(x,y)\longmapsto \overline{F}(x,y)=e^{ϕ(x,y)}F…

math.DG2022

Harmonic Finsler manifolds of -type

Ebtsam H. Taha

In this paper we construct a new class of harmonic and asymptotically harmonic Finsler manifolds of -type. This class is defined by a Riemannian metric and a special 1-f…

math.DG2021

Busemann functions in asymptotically harmonic Finsler manifolds

Hemangi Shah, Ebtsam H. Taha

In the present paper, we investigate Busemann functions in a general Finsler setting as well as in asymptotically harmonic Finsler manifolds. In particular, we show Busemann functi…

math.DG2021

Tripathi Connection in Finsler Geometry

A. Soleiman, Ebtsam H. Taha

Adopting the pullback formalism, a new linear connection in Finsler geometry has been introduced and investigated. Such connection unifies all formerly known Finsler connections an…

math.DG2021

On almost rational Finsler metrics

Ebtsam H. Taha, Bankteshwar Tiwari

We study a special class of Finsler metrics which we refer to as Almost Rational Finsler metrics (shortly, AR-Finsler metrics). We give necessary and sufficient conditions for an A…

math.DG2020★ 2 cited

On Finsler surfaces with certain flag curvatures

Ebtsam H. Taha

In the present paper, we find out necessary and sufficient conditions for a Finsler surface to be Landsbregian in terms of the Berwald curvature -forms. We study Finsler…

math.DG2020

On Harmonic and Asymptotically Harmonic Finsler Manifolds

Hemangi Shah, Ebtsam H. Taha

In the present paper, we introduce and investigate various types of harmonic Finsler manifolds and find out the interrelation between them. We give some characterizations of such s…

math.DG2018★ 6 cited

Semi Concurrent vector fields in Finsler geometry

Nabil L. Youssef, S. G. Elgendi, Ebtsam H. Taha

In the present paper, we introduce and investigate the notion of a semi concurrent vector field on a Finsler manifold. We show that some special Finsler manifolds admitting such ve…

math.DG2017★ 1 cited

Alternative Lagrangians obtained by scalar deformations

Oana A. Constantinescu, Ebtsam H. Taha

We study non-conservative like SODEs admitting explicit Lagrangian descriptions. Such systems are equivalent to the system of Lagrange equations of some Lagrangian , including a…

math.DG2016★ 2 cited

Frobenius integrability and Finsler metrizability for -dimensional sprays

Ioan Bucataru, Georgeta Creţu, Ebtsam H. Taha

For a -dimensional non-flat spray we associate a Berwald frame and a -dimensional distribution that we call the Berwald distribution. The Frobenius integrability of the Berwa…

math.DG2016★ 2 cited

New Conformal Invariants in Absolute Parallelism Geometry

Nabil L. Youssef, A. Soleiman, Ebtsam H. Taha

The aim of the present paper is to investigate conformal changes in absolute parallelism geometry. We find out some new conformal invariants in terms of the Weitzenböck connection…

math.DG2016

Connections in sub-Riemannian geometry of parallelizable distributions

Nabil L. Youssef, Ebtsam H. Taha

The notion of a parallelizable distribution has been introduced and investigated. A non-integrable parallelizable distribution carries a natural sub-Riemannian structure. The geome…

gr-qc2014

Gravity theory in SAP-geometry

Nabil L. Youssef, Amr M. Sid-Ahmed, Ebtsam H. Taha

The aim of the present paper is to construct a field theory in the context of absolute parallelism (Teleparallel) geometry under the assumption that the canonical connection is sem…

math.DG2012★ 2 cited

On Finslerized Absolute Parallelism spaces

Nabil L. Youssef, Amr M. Sid-Ahmed, Ebtsam H. Taha

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…