arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1501.03414math.DG
收藏

2-球面上的双调和映射和f-双调和映射

Biharmonic and f-biharmonic maps from a 2-sphere

Ze-Ping Wang, Ye-Lin Ou, Han-Chun Yang

摘要:

研究了球面$(S^2, g_0)$上的双调和映射和f-双调和映射,后者等价于黎曼球面$(S^2, f^{-1}g_0)$上的双调和映射.证明了对于旋转对称空间之间的旋转对称映射,其双调和性和f-双调和性都归结为一个二阶线性常微分方程.作为应用,我们给出了由给定的双调和映射生成双调和映射和f-双调和映射的方法,并构造了许多从圆球$S^2$和两圆球之间的双调和映射和f-双调和映射的例子.我们的例子包括非共形的真双调和映射$(S^2, f^{-1}g_0)\longrightarrow S^2$和$(S^2, f^{-1}g_0)\longrightarrow S^n$,或非共形的f-双调和映射$(S^2, g_0)\longrightarrow S^2$和$(S^2,g_0)\longrightarrow S^n$从圆球面上有两个奇点。

英文摘要:

We study biharmonic maps and f-biharmonic maps from a round sphere $(S^2, g_0)$, the latter maps are equivalent to biharmonic maps from Riemann spheres $(S^2, f^{-1}g_0)$. We proved that for rotationally symmetric maps between rotationally symmetric spaces, both biharmonicity and f-biharmonicity reduce to a 2nd order linear ordinary differential equation. As applications, we give a method to produce biharmonic maps and f-biharmonic maps from given biharmonic maps and we construct many examples of biharmonic and f-biharmonic maps from a round sphere $S^2$ and between two round spheres. Our examples include non-conformal proper biharmonic maps $(S^2, f^{-1}g_0)\longrightarrow S^2$ and $(S^2, f^{-1}g_0)\longrightarrow S^n$, or non-conformal f-biharmonic maps $(S^2, g_0)\longrightarrow S^2$ and $(S^2,g_0)\longrightarrow S^n$ from round sphere with two singular points.

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。

↑