Characterization of Finsler spaces of scalar curvature

Soleiman, Amr; Youssef, Nabil

doi:10.22098/jfga.2020.1003

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	Characterization of Finsler spaces of scalar curvature
Journal of Finsler Geometry and its Applications
دوره 1، شماره 1، مهر 2020، صفحه 15-25 اصل مقاله (101.97 K)
نوع مقاله: Original Article
شناسه دیجیتال (DOI): 10.22098/jfga.2020.1003
نویسندگان
Amr Soleiman^* ¹؛ Nabil Youssef²
¹Department of Mathematics, Faculty of Science, Benha University, Benha 13518, Egypt. E-mail: amrsoleiman@yahoo.com
²Department of Mathematics, Faculty of Science, Cairo University, Giza, Egypt. E-mail: nlyoussef2003@yahoo.fr
چکیده
In Finsler Geometry, all special spaces are investigated locally (using local coordinates) by many authors. On the other hand, the global (or intrinsic, free from local coordinates) investigation of such spaces is very rare in the literature. The aim of the present paper is to provide an intrinsic investigation of two special Finsler spaces whose defining properties are related to Berwald connection, namely, Finsler space of scalar curvature and of constant curvature. Some characterizations of a Finsler space of scalar curvature are proved. Necessary and sufficient conditions under which a Finsler space of scalar curvature reduces to a Finsler space of constant curvature are investigated. It should finally be noted that the present work is formulated in a prospective modern coordinate-free form. Moreover, the outcome of this work is twofold. Firstly, the local expressions of the obtained results, when calculated, coincide with the existing local results. Secondly, new coordinates-free proofs have been established.
کلیدواژه‌ها
Berwald connection؛ Deviation tensor؛ indicatory tensor؛ Finsler manifold of scalar curvature؛ Finsler manifold of constant curvature

مراجع
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Characterization of Finsler spaces of scalar curvature