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arXiv 1209.2662math.DG
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复杂曲面上的Chern-里奇流

The Chern-Ricci flow on complex surfaces

Valentino Tosatti, Ben Weinkove

摘要:

陈-里奇流是由Gill首先引入的厄米度规的陈-里奇形式的发展方程。在我们以前的工作的基础上,我们研究了复杂表面上的这种流动。在有限时间非坍缩情形下,我们建立了新的估计,类似于Kahler-里奇流的一些已知结果.这证明了陈-里奇流对非极小曲面上的异常曲线进行了吹落。我们还描述了各种非Kahler表面的陈-里奇流的显式解。在霍普夫曲面和井上曲面上,这些解,适当规范化,塌陷到一个圆的意义上的Gromov-Hausdorff。对于非Kahler真椭圆曲面,我们的显式解坍缩为黎曼曲面。最后,我们定义了一个Mabuchi能量泛函的复杂曲面消失的第一Bott-Chern类,并表明它减少沿陈里奇流。

英文摘要:

The Chern-Ricci flow is an evolution equation of Hermitian metrics by their Chern-Ricci form, first introduced by Gill. Building on our previous work, we investigate this flow on complex surfaces. We establish new estimates in the case of finite time non-collapsing, anologous to some known results for the Kahler-Ricci flow. This provides evidence that the Chern-Ricci flow carries out blow-downs of exceptional curves on non-minimal surfaces. We also describe explicit solutions to the Chern-Ricci flow for various non-Kahler surfaces. On Hopf surfaces and Inoue surfaces these solutions, appropriately normalized, collapse to a circle in the sense of Gromov-Hausdorff. For non-Kahler properly elliptic surfaces, our explicit solutions collapse to a Riemann surface. Finally, we define a Mabuchi energy functional for complex surfaces with vanishing first Bott-Chern class and show that it decreases along the Chern-Ricci flow.

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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