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arXiv 2211.07623math.DG
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具有 PIC1 夹挤曲率的流形

Manifolds with PIC1 pinched curvature

Man-Chun Lee, Peter M. Topping

AI总结:

本文通过构造从任意 PIC1 夹挤的完备非紧流形出发、永恒存在的 Ricci 流,将三维非负夹挤 Ricci 曲率流形的平坦或紧性结论推广到高维。

摘要:

最近已有证明(Lee-Topping 2022,Deruelle-Schulze-Simon 2022,Lott 2019):具有非负夹挤 Ricci 曲率的三维完备流形必定是平坦或紧的,从而证实了 Hamilton 的一个猜想。本文推广了我们此前关于从非紧夹挤三维流形出发的 Ricci 流存在性的工作,以证明一个高维类比。我们从任意 PIC1 夹挤的完备非紧流形出发,构造了一个对所有时间都存在的 Ricci 流解。作为应用,我们证明:任何具有非负复截面曲率且为 PIC1 夹挤的完备流形,必定是平坦或紧的。

英文摘要:

Recently it has been proved (Lee-Topping 2022, Deruelle-Schulze-Simon 2022, Lott 2019) that three-dimensional complete manifolds with non-negatively pinched Ricci curvature must be flat or compact, thus confirming a conjecture of Hamilton. In this paper we generalise our work on the existence of Ricci flows from non-compact pinched three-manifolds in order to prove a higher-dimensional analogue. We construct a solution to Ricci flow, for all time, starting with an arbitrary complete non-compact manifold that is PIC1 pinched. As an application we prove that any complete manifold of non-negative complex sectional curvature that is PIC1 pinched must be flat or compact.

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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