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arXiv 2008.07732math.DG
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关于X曲率为零的喷雾

On sprays with vanishing X-curvature

Zhongmin Shen

摘要:

流形上的每一个黎曼度量或芬斯勒度量通过其测地线诱导一个spray。本文讨论了喷雾X曲率的几种表达式。我们表明,通过投影变形使用S-曲率得到的喷雾总是有消失的X-曲率。在此基础上,我们建立了X=0的喷丛的Beltrami定理

英文摘要:

Every Riemannian metric or Finsler metric on a manifold induces a spray via its geodesics. In this paper, we discuss several expressions for the X-curvature of a spray. We show that the sprays obtained by a projective deformation using the S-curvature always have vanishing X-curvature. Then we establish the Beltrami Theorem for sprays with X=0

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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