中国科学技术大学学报 ›› 2019, Vol. 49 ›› Issue (3): 199-202.DOI: 10.3969/j.issn.0253-2778.2019.03.004

• 原创论文 • 上一篇    下一篇

具有标量旗曲率的球对称Finsler度量

刘 敏   

  1. 安徽师范大学数学与统计学院,安徽芜湖 241003
  • 收稿日期:2018-02-09 修回日期:2018-04-12 出版日期:2019-03-30 发布日期:2019-03-30

Spherically symmetric Finsler metrics with scalar flag curvature

  1. LIU Min, SONG Weidong
  • Received:2018-02-09 Revised:2018-04-12 Online:2019-03-30 Published:2019-03-30
  • Contact: LIU Min
  • About author:LIU Min(corresponding author), female, born in 1980, master/lecturer. Research field: Differential geometry. E-mail: friend78@163.com

摘要: Finsler几何是没有二次型限制的黎曼几何,射影平坦是Finsler几何中非常重要的问题.通过对一个微分方程的研究得到了新的球对称射影平坦的Finsler度量并利用沈忠民的结果得到其旗曲率.

关键词: 局部射影平坦, 球对称, 误差函数, 标量旗曲率

Abstract: Finsler geometry is Riemannian geometry without quadratic restriction,and the projectively flat Finsler metrics are very important in Finsler geometry.Here a new example of projectively flat spherically symmetric Finsler metric was given by investigating a PDE equivalent, and using Shen Zhongmin’s result, its flag curvature was obtained.

Key words: locally projectively flat, spherically symmetric, error function, scalar flag curvature