Some classes of sprays in projective spray geometry
Some classes of sprays in projective spray geometry
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DOI:
10.1016/j.difgeo.2011.04.041
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发表时间:
2011-08
影响因子:
0.5
通讯作者:
Guojun Yang
中科院分区:
文献类型:
--
作者:
Guojun Yang
This paper studies some properties of projective changes in spray and Finsler geometry. Firstly, it obtains a comparison theorem on Ricci curvature for projectively related Finsler metrics. Secondly, it studies the properties of a class of projectively flat sprays, which particularly shows that there exist many isotropic sprays that cannot be induced by any (even singular) Finsler metrics.