arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.07004math.DGmath.APmath.CV
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广义里奇流

Generalized Ricci Flow

Mario Garcia-Fernandez, Jeffrey Streets

摘要:

这本书介绍了广义Riemannian几何、复几何和Kähler几何的基本方面。这导致了经典爱因斯坦-希尔伯特作用的扩展,它产生了爱因斯坦和卡-丘结构的自然扩张,作为广义黎曼几何和复几何中的“正则度量”。引入广义里奇流作为构造这种度量的工具,并证明了里奇流的基本Hamilton/Perelman正则性理论的推广.这些结果在广义复几何中得到了改进,证明了广义里奇流保持了各种可积性条件,表现为多重闭流和广义Kähler-里奇流的形式.这导致整体收敛的结果,并应用到复杂的几何。对T-对偶的物理概念作了纯数学的介绍,并讨论了它与广义里奇流的关系。

英文摘要:

This book gives an introduction to fundamental aspects of generalized Riemannian, complex, and Kähler geometry. This leads to an extension of the classical Einstein-Hilbert action, which yields natural extensions of Einstein and Calabi-Yau structures as `canonical metrics' in generalized Riemannian and complex geometry. The generalized Ricci flow is introduced as a tool for constructing such metrics, and extensions of the fundamental Hamilton/Perelman regularity theory of Ricci flow are proved. These results are refined in the setting of generalized complex geometry, where the generalized Ricci flow is shown to preserve various integrability conditions, taking the form of pluriclosed flow and generalized Kähler-Ricci flow. This leads to global convergence results, and applications to complex geometry. A purely mathematical introduction to the physical idea of T-duality is given, and a discussion of its relationship to generalized 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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