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arXiv 1002.4439math.DGmath.AP
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三维流形上的双调和黎曼浸入

Biharmonic Riemannian submersions from 3-manifolds

Ze-Ping Wang, Ye-Lin Ou

摘要:

Chen-Ishikawa [CI]和Jiang [Ji]独立证明了关于双调和子流形的一个重要定理:曲面到三维欧几里得空间的等距浸入是双调和的当且仅当它是调和的(即极小的)。在后来的论文[CMO 2]中,Cadeo-Monttaldo-Oniciuc证明了如果目标欧几里得空间被三维双曲空间型所取代,则该定理仍然成立。本文证明了黎曼浸没的对偶结果,即,从非正曲率的三维空间型到曲面的黎曼浸入是双调和的当且仅当它是调和的。

英文摘要:

An important theorem about biharmonic submanifolds proved independently by Chen-Ishikawa [CI] and Jiang [Ji] states that an isometric immersion of a surface into 3-dimensional Euclidean space is biharmonic if and only if it is harmonic (i.e, minimal). In a later paper [CMO2], Cadeo-Monttaldo-Oniciuc shown that the theorem remains true if the target Euclidean space is replaced by a 3-dimensional hyperbolic space form. In this paper, we prove the dual results for Riemannian submersions, i.e., a Riemannian submersion from a 3-dimensional space form of non-positive curvature into a surface is biharmonic if and only if it is harmonic.

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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