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相关论文: The K\"ahler-Ricci flow, Ricci-flat metrics and co…

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We study the long-time behavior of the Kahler-Ricci flow on compact Kahler manifolds. We give an almost complete classification of the singularity type of the flow at infinity, depending only on the underlying complex structure. If the…

微分几何 · 数学 2017-01-03 Valentino Tosatti , Yuguang Zhang

We study adiabatic limits of Ricci-flat Kahler metrics on a Calabi-Yau manifold which is the total space of a holomorphic fibration when the volume of the fibers goes to zero. By establishing some new a priori estimates for the relevant…

微分几何 · 数学 2018-04-19 Valentino Tosatti

We consider the K\"ahler-Ricci flow on compact K\"ahler manifolds with semiample canonical bundle and intermediate Kodaira dimension, and show that the flow collapses to a canonical metric on the base of the Iitaka fibration in the locally…

微分几何 · 数学 2025-05-21 Hans-Joachim Hein , Man-Chun Lee , Valentino Tosatti

We study the collapsing behaviour of Ricci-flat Kahler metrics on a projective Calabi-Yau manifold which admits an abelian fibration, when the volume of the fibers approaches zero. We show that away from the critical locus of the fibration…

微分几何 · 数学 2019-12-19 Mark Gross , Valentino Tosatti , Yuguang Zhang

We study the collapsing of Calabi-Yau metrics and of Kahler-Ricci flows on fiber spaces where the base is smooth. We identify the collapsed Gromov-Hausdorff limit of the Kahler-Ricci flow when the divisorial part of the discriminant locus…

微分几何 · 数学 2024-08-08 Yang Li , Valentino Tosatti

We study the space of Ricci-flat Kahler metrics on a given Calabi-Yau manifold, pose a number of questions about their possible degenerations, and survey some recent results on these questions.

微分几何 · 数学 2025-10-16 Valentino Tosatti

For any elliptic K3 surface $\mathfrak{F}: \mathcal{K} \rightarrow \mathbb{P}^1$, we construct a family of collapsing Ricci-flat K\"ahler metrics such that curvatures are uniformly bounded away from singular fibers, and which…

微分几何 · 数学 2019-10-25 Gao Chen , Jeff Viaclovsky , Ruobing Zhang

We prove that the twisted Kahler-Einstein metrics that arise on the base of certain holomorphic fiber space with Calabi-Yau fibers have conical-type singularities along the discriminant locus. These fiber spaces arise naturally when…

微分几何 · 数学 2020-11-24 Mark Gross , Valentino Tosatti , Yuguang Zhang

We study the collapsing behavior of the Kaehler-Ricci flow on a compact Kaehler manifold X admitting a holomorphic submersion X -> S coming from its canonical class, where S is a Kaehler manifold with dim S < dim X. We show that the flow…

微分几何 · 数学 2013-08-26 Frederick Tsz-Ho Fong , Zhou Zhang

We consider the space of Kahler metrics as a Riemannian submanifold of the space of Riemannian metrics, and study the associated submanifold geometry. In particular, we show that the intrinsic and extrinsic distance functions are…

微分几何 · 数学 2014-01-17 Brian Clarke , Yanir A. Rubinstein

In this article, we study the higher-order regularity of the K\"ahler-Ricci flow on compact K\"ahler manifolds with semi-ample canonical line bundle. We proved, using a parabolic analogue of Hein-Tosatti's work on collapsing Calabi-Yau…

微分几何 · 数学 2020-02-03 Frederick Tsz-Ho Fong , Man-Chun Lee

We survey some recent developments on the problem of understanding degenerations of Calabi-Yau manifolds equipped with their Ricci-flat Kahler metrics, with an emphasis on the case when the metrics are volume collapsing.

微分几何 · 数学 2020-05-08 Valentino Tosatti

We consider the K\"ahler-Ricci flow on certain Calabi-Yau fibration, which is a Calabi-Yau fibration with one dimensional base or a product of two Calabi-Yau fibrations with one dimensional bases. Assume the K\"ahler-Ricci flow on total…

微分几何 · 数学 2018-04-24 Yashan Zhang

We show that on smooth minimal surfaces of general type, the K\"ahler-Ricci flow starting at any initial K\"ahler metric converges in the Gromov-Hausdorff sense to a K\"ahler-Einstein orbifold surface. In particular, the diameter of the…

微分几何 · 数学 2018-12-14 Bin Guo , Jian Song , Ben Weinkove

We investigate the Chern-Ricci flow, an evolution equation of Hermitian metrics generalizing the Kahler-Ricci flow, on elliptic bundles over a Riemann surface of genus greater than one. We show that, starting at any Gauduchon metric, the…

微分几何 · 数学 2015-07-24 Valentino Tosatti , Ben Weinkove , Xiaokui Yang

This paper is a sequel to arXiv:1108.0967. We further study Gromov-Hausdorff collapsing limits of Ricci-flat K\"ahler metrics on abelian fibered Calabi-Yau manifolds. Firstly, we show that in the same setup as arXiv:1108.0967, if the…

微分几何 · 数学 2016-06-07 Mark Gross , Valentino Tosatti , Yuguang Zhang

In this paper, we consider Kahler-Ricci flow on n-dimensional Kahler manifold with semi-ample canonical line bundle and 0< m:= Kod(X)<n. Such manifolds admit a Calabi-Yau fibration over its canonical model. We prove that the scalar…

微分几何 · 数学 2018-05-22 Wangjian Jian

The existence of K\"ahler-Einstein metrics on a compact K\"ahler manifold has been the subject of intensive study over the last few decades, following Yau's solution to Calabi's conjecture. The Ricci flow, introduced by Richard Hamilton has…

微分几何 · 数学 2009-11-11 Jian Song , Gang Tian

This is a survey article of the recent progresses on the metric behaviour of Ricci-flat K\"{a}hler-Einstein metrics along degenerations of Calabi-Yau manifolds.

微分几何 · 数学 2015-11-16 Yuguang Zhang

We prove a uniform diameter bound for long time solutions of the normalized Kahler-Ricci flow on an $n$-dimensional projective manifold $X$ with semi-ample canonical bundle under the assumption that the Ricci curvature is uniformly bounded…

微分几何 · 数学 2019-04-18 Jian Song , Gang Tian , Zhenlei Zhang
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