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arXiv 2107.05487math.DG
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在Weyl、Cotton和Cao-Chen张量消失条件下对广义Yamabe溶iton的分类

Classification of generalized Yamabe solitons under vanishing conditions on the Weyl, Cotton, and Cao-Chen tensors

Department of Mathematics, Chiba University(千叶大学数学系);Department of Mathematics, Faculty of Education, Chiba University(千叶大学教育学部数学系)

Shun Maeta

AI总结:

本文在Weyl、Cotton和Cao-Chen张量消失条件下,对广义Yamabe溶iton进行了分类,揭示了非平凡局部共形平坦溶iton的结构特性及旋转对称性。

摘要:

我们研究了完整的符合梯度溶iton,这一类包含梯度Yamabe溶iton和许多广义Yamabe型结构,包括梯度近Yamabe、梯度k-Yamabe和梯度h-近Yamabe溶iton,以及在改变势函数后,梯度Einstein型流形具有α=0和β≠0(特别是准Yamabe溶iton)。在本文中,我们对完整的非平凡局部共形平坦的符合梯度溶iton进行了分类。这一结果对Yamabe型溶iton的Perelman猜想的类比有所贡献。此外,我们还表明在标量曲率非负的情况下,每个非平坦的溶iton都是旋转对称的。我们还获得了在Cotton或Cao-Chen张量消失假设下的分类结果。

英文摘要:

We study complete conformal gradient solitons, a class containing gradient Yamabe solitons and many generalized Yamabe-type structures, including gradient almost Yamabe, gradient k-Yamabe, and gradient h-almost Yamabe solitons, and, after a change of the potential function, gradient Einstein-type manifolds with $α=0$ and $β\neq0$ (in particular, quasi-Yamabe solitons). In this paper, we classify complete nontrivial locally conformally flat conformal gradient solitons. This result contributes to an analogue of Perelman's conjecture for Yamabe-type solitons. Moreover, we show that under nonnegative scalar curvature, every nonflat soliton is rotationally symmetric. We also obtain classifications assuming the Cotton or Cao-Chen tensor vanishes.

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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