Gradient Yamabe Solitons on Warped Products

Details Gradient Yamabe Solitons on Warped Products Gradient Yamabe Solitons on Warped Products

2011-09-11

arxiv.org/abs/1109.2343v1

Mathematics

Differential Geometry

23 pages, 3 figures

Scientific paper

The special nature of gradient Yamabe soliton equation which was first observed by Cao-Sun-Zhang\cite{CaoSunZhang} shows that a complete gradient Yamabe soliton with non-constant potential function is either defined on the Euclidean space with rotational symmetry, or on the warped product of the real line with a manifold of constant scalar curvature. In this paper we consider the classification in the latter case. We show that a complete gradient steady Yamabe soliton on warped product is necessarily isometric to the Riemannian product. In the shrinking case, we show that there is a continuous family of complete gradient Yamabe shrinkers on warped products which are not isometric to the Riemannian product in dimension three and higher.

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