40 citations · 264 across the 45 of their papers we have counts for
45 papers
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…
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…
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…
On the covariant coefficients of geodesic sprays on Finsler manifolds
S. G. Elgendi, A. Soleiman, Nabil L. Youssef
For a Finsler metric , we introduce the notion of -covariant coefficients of the geodesic spray of (Def. 3.1). We study some geometric consequences concerning the o…
A note on L. Zhou's result on Finsler surfaces with and
S. G. Elgendi, Nabil L. Youssef
In this note, we show that the examples of non Berwaldian Landsberg surfaces with vanishing flag curvature, obtained in \cite{Zhou}, are in fact Berwaldian. Consequently, Bryant's…
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…