作 者:
(何起);
(李璐璐);
(宋卫东);
机构地区:
安徽师范大学数学计算机科学学院,安徽芜湖241000
出 处:
《南通大学学报(自然科学版)》
2017年第2期82-86,共5页
摘 要:
讨论了球对称芬斯勒度量F=|y|Φ(|x|~2/2,|y|),其中x∈B^n(r)■R^n,y∈T_xB^n(r)\{0},Φ∶[0,r)×R→R,通过构造其射影平坦偏微分方程,得到了一个可以展成形如Φ(t,s)=e^(λt)[a_0+a_1s+∑_(k=1)~∞(-1)^(k-1)·a_0s^(2k)/(2k-1)(2k)!!]的解.
In this paper, spherically symmetric Finsler metricsF=|y|Ф(|x|^2/2,〈x,y〉/|y|) was studied where x∈B^n(r) R^n,y∈TxB^n(r)/{0},Ф:[0,r)×R→R By investigating a PDE equivalent to these metrics being locally projec- 2k k tively flat, a solution of the PDE just like ~Ф(t,s)=e^λ1[a0+a1s+∑k=1^∞(-1)^k-1·a0s^2k/(2k-1)(2k)!!]was obtmned.
关 键 词:
芬斯勒度量
球对称
射影平坦