Biharmonic Riemannian submersions from 3-manifolds

Details Biharmonic Riemannian submersions from 3-manifolds Biharmonic Riemannian submersions from 3-manifolds

2010-02-24

arxiv.org/abs/1002.4439v1

Math. Z. 2011

Mathematics

Differential Geometry

Scientific paper

10.1007/s00209-010-0766-6

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.

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