Zobrazeno 1 - 10
of 225
pro vyhledávání: '"Nabil L"'
Publikováno v:
Journal of the Arab Society for Medical Research, Vol 17, Iss 2, Pp 166-179 (2022)
Background/aim Ordering laboratory (laboratory) tests by physicians is a part of the pre-preanalytical laboratory phase, which is a high error-prone process. Many of the laboratory tests ordered are unnecessary, where excess ordering represents as mu
Externí odkaz:
https://doaj.org/article/3f2c9e10428b4923ada9d3adcd14edec
Publikováno v:
Journal of High Institute of Public Health, Vol 51, Iss 3, Pp 114-120 (2021)
Background: Patient involvement in health care is a basic patient's right. Effective communication between the health care professional and the patient is associated with improved psychological functioning of the patient, adherence to treatment, and
Externí odkaz:
https://doaj.org/article/f99be33c50d7446c85e16be4b277463e
The present work is devoted to investigate anisotropic conformal transformation of conic pseudo-Finsler surfaces $(M,F)$, that is, $ F(x,y)\longmapsto \overline{F}(x,y)=e^{\phi(x,y)}F(x,y)$, where the function $\phi(x,y)$ depends on both position $x$
Externí odkaz:
http://arxiv.org/abs/2404.15659
For a Finsler metric $F$, we introduce the notion of $F$-covariant coefficients $H_i$ of the geodesic spray of $F$ (Def. 3.1). We study some geometric consequences concerning the objects $H_i$. If the $F$-covariant coefficients $H_i$ are written in t
Externí odkaz:
http://arxiv.org/abs/2404.07995
Publikováno v:
Advances in Mathematical Physics, Vol 2016 (2016)
The importance of Einstein’s geometrization philosophy, as an alternative to the least action principle, in constructing general relativity (GR), is illuminated. The role of differential identities in this philosophy is clarified. The use of Bianch
Externí odkaz:
https://doaj.org/article/fc5c0e56d2e54f0889057e6e7b0bb2c0
Autor:
Elgendi, S. G., Youssef, Nabil L.
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 claim is still unverified.
Comment: 4 pages, LaTeX file
Comment: 4 pages, LaTeX file
Externí odkaz:
http://arxiv.org/abs/2103.08550
Akademický článek
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Publikováno v:
Differential Geometry and its Applications 65 (2019) 1-15
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 vector fields turn out to be Riemannian. We prove that Tachibana's chara
Externí odkaz:
http://arxiv.org/abs/1802.02405
Autor:
Youssef, Nabil L., Soleiman, A.
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 connection whose
Externí odkaz:
http://arxiv.org/abs/1706.06079
Publikováno v:
Advances in Mathematical Physics, vol. 2016, Article ID 1037849, 8 pages, 2016
The importance of Einstein's geometrization philosophy, as an alternative to the least action principle, in constructing general relativity (GR), is illuminated. The role of differential identities in this philosophy is clarified. The use of Bianchi
Externí odkaz:
http://arxiv.org/abs/1611.06075