论文标题

四维kähler-icci solitons的刚度

Rigidity of four-dimensional Kähler-Ricci solitons

论文作者

Cao, Xiaodong, Ribeiro Jr, Ernani, Tran, Hung

论文摘要

在本文中,我们研究了接近Kähler模型的四维梯度收缩Ricci Soliton。第一个定理可以将其视为$ \ mathbb {s}^2 \ times \ times \ mathbb {r}^2 $(从备注1)上的kähler-ricci soliton结构的刚度结果。此外,我们表明,如果在特定意义上,自偶联的Weyl张量和标量曲率的标准与Kähler指标上的标准曲率接近,那么梯度Ricci Soliton必须是半吻合平坦的或本地的Kähler。

In this article, we investigate four-dimensional gradient shrinking Ricci solitons close to a Kähler model. The first theorem could be considered as a rigidity result for the Kähler-Ricci soliton structure on $\mathbb{S}^2\times \mathbb{R}^2$ (in the sense of Remark 1). Moreover, we show that if the quotient of norm of the self-dual Weyl tensor and scalar curvature is close to that on a Kähler metric in a specific sense, then the gradient Ricci soliton must be either half-conformally flat or locally Kähler.

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