پیوندهای مفید
آمار
| تعداد نشریات | 26 |
| تعداد شماره‌ها | 326 |
| تعداد مقالات | 2,803 |
| تعداد مشاهده مقاله | 4,227,723 |
| تعداد دریافت فایل اصل مقاله | 2,881,283 |
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 | ||
|
آمار تعداد مشاهده مقاله: 285 تعداد دریافت فایل اصل مقاله: 285 |
||