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Related papers: K\"ahler-Ricci Flow with Degenerate Initial Class

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For a Fano manifold, We consider the geometric quantization of the K\"ahler-Ricci flow and the associated entropy functional. Convergence to the original flow and entropy is established. It is also possible to formulate the…

Differential Geometry · Mathematics 2024-01-03 Tomoyuki Hisamoto

If we want to deform a compact Riemannian manifold with boundary using Ricci flow, we first need to decide on appropriate boundary conditions. We would like these conditions to reflect the geometric nature of the flow and allow for a…

Differential Geometry · Mathematics 2024-03-15 Rasmus Jouttijärvi

Ricci flow deformation of cosmological initial data sets in general relativity is a technique for generating families of initial data sets which potentially would allow to interpolate between distinct spacetimes. This idea has been around…

Mathematical Physics · Physics 2017-08-23 Mauro Carfora , Thomas Buchert

We show that the solution constructed in an earlier work of Y-G. Shi and the authors can be used to obtain sharp gradient estimates for the Kaehler-Ricci flow which achieves equality on a steady soliton. The estimate can be applied to…

Differential Geometry · Mathematics 2007-05-23 Lei Ni , Luen-Fai Tam

We investigate the combinatorial Ricci flow on a surface of nonpositive Euler characteristic when the necessary and sufficient condition for the convergence of the combinatorial Ricci flow is not valid. This observation addresses one of…

Differential Geometry · Mathematics 2018-08-21 Asuka Takatsu

We introduce the conical K\"ahler-Ricci flow modified by a holomorphic vector field. We construct a long-time solution of the modified conical K\"ahler-Ricci flow as the limit of a sequence of smooth K\"ahler-Ricci flows.

Differential Geometry · Mathematics 2017-04-12 Ryosuke Takahashi

We prove a general result about the short time existence and uniqueness of second order geometric flows transverse to a Riemannian foliation on a compact manifold. Our result includes some flows already existing in literature, as the…

Differential Geometry · Mathematics 2018-06-08 Lucio Bedulli , Weiyong He , Luigi Vezzoni

We prove that on Fano manifolds, the K\"ahler-Ricci flow produces a "most destabilising" degeneration, with respect to a new stability notion related to the H-functional. This answers questions of Chen-Sun-Wang and He. We give two…

Differential Geometry · Mathematics 2018-07-10 Ruadhaí Dervan , Gábor Székelyhidi

We study the K\"ahler-Ricci flow on a class of projective bundles $\mathbb{P}(\mathcal{O}_\Sigma \oplus L)$ over compact K\"ahler-Einstein manifold $\Sigma^n$. Assuming the initial K\"ahler metric $\omega_0$ admits a U(1)-invariant momentum…

Differential Geometry · Mathematics 2014-01-21 Frederick Tsz-Ho Fong

Given a compact K\"ahler manifold $X$ and a closed, positive $(1,1)$-current $T$ on $X$, we find sufficient conditions for $T$ to induce a metric structure $(X,d_T)$ which is the Gromov-Hausdorff limit of compact K\"ahler manifolds either…

Differential Geometry · Mathematics 2025-11-18 Alix Deruelle , Vincent Guedj , Henri Guenancia , Ahmed Zeriahi

We apply ideas from viscosity theory to establish the existence of a unique global weak solution to the generalized Kahler-Ricci flow in the setting of commuting complex structures. Our results are restricted to the case of a smooth…

Analysis of PDEs · Mathematics 2016-10-07 Jeffrey Streets

In this paper, we study the (normalized) Ricci flow on surfaces with conical singularities. Long time existence is proved for cone angle smaller than $2\pi$. In this case, convergence results are obtained if the Euler number is nonpositive.

Differential Geometry · Mathematics 2015-12-08 Hao Yin

We consider the K\"ahler-Ricci flow $\frac{\partial}{\partial t}g_{i\bar{j}} = g_{i\bar{j}} - R_{i\bar{j}}$ on a compact K\"ahler manifold $M$ with $c_1(M) > 0$, of complex dimension $k$. We prove the $\epsilon$-regularity lemma for the…

Differential Geometry · Mathematics 2007-09-24 Natasa Sesum

In this paper, we prove that K\"ahler-Ricci flow converges to a K\"ahler-Einstein metric (or a K\"ahler-Ricci soliton) in the sense of Cheeger-Gromov as long as an initial K\"ahler metric is very closed to $g_{KE}$ (or $g_{KS}$) if a…

Differential Geometry · Mathematics 2009-08-12 Xiaohua Zhu

In this paper, we study the long-term behavior of the conical K\"ahler-Ricci flow on Fano manifold $M$. First, based on our work of locally uniform regularity for the twisted K\"ahler-Ricci flows, we obtain a long-time solution to the…

Differential Geometry · Mathematics 2015-02-03 Jiawei Liu , Xi Zhang

We explain a characterization of Einstein-Fano manifolds in terms of the lower bound of the density of the volume of the K\"ahler-Ricci Flow. This is a direct consequence of Perelman's uniform estimate for the K\"ahler-Ricci Flow and a…

Differential Geometry · Mathematics 2007-05-23 Nefton Pali

In this paper, we give an alternative proof for the convergence of K\"ahler-Ricci flow on a Fano mnaifold $(M,J)$. This proof differs from that in [TZ3]. Moreover, we generalize the main theorem of [TZ3] to the case that $(M,J)$ may not…

Differential Geometry · Mathematics 2011-02-24 Gang Tian , Xiaohua Zhu

We investigate the Kahler-Ricci flow on holomorphic fiber spaces whose generic fiber is a Calabi-Yau manifold. We establish uniform metric convergence to a metric on the base, away from the singular fibers, and show that the rescaled…

Differential Geometry · Mathematics 2018-05-17 Valentino Tosatti , Ben Weinkove , Xiaokui Yang

We generalize the maximal time existence of K\"{a}hler-Ricci flow in Tian-Zhang and Song-Tian to conical case. Furthermore, if the twisted canonical bundle $K_{M}+(1-\beta)[D]$ is big or big and nef, we can expect more on the limit…

Differential Geometry · Mathematics 2014-11-27 Liangming Shen

We prove that the conical K\"ahler-Ricci flows introduced in \cite{CYW} exist for all time $t\in [0,+\infty)$. These immortal flows possess maximal regularity in the conical category. As an application, we show if the twisted first Chern…

Differential Geometry · Mathematics 2014-02-27 Xiuxiong Chen , Yuanqi Wang