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We introduce a new class of discrete conformal structures on surfaces with boundary, which have nice interpolations in 3-dimensional hyperbolic geometry. Then we prove the global rigidity of the new discrete conformal structures using…

Geometric Topology · Mathematics 2022-08-11 Xu Xu

A flow of metrics, $g_t$, on a manifold is a solution of a differential equation $\dt g = S(g)$, where a geometric functional $S(g)$ is a symmetric $(0,2)$-tensor usually related to some kind of curvature. The mixed sectional curvature of a…

Differential Geometry · Mathematics 2013-11-28 Vladimir Rovenski , Vladimir Sharafutdinov

We consider the K\"ahler Ricci flow on a smooth minimal model of general type, we show that if the Ricci curvature is uniformly bounded below along the K\"ahler-Ricci flow, then the diameter is uniformly bounded. As a corollary we show that…

Differential Geometry · Mathematics 2015-01-20 Bin Guo

It is the purpose of this article to establish a technical tool to study regularity of solutions to parabolic equations on manifolds. As applications of this technique, we prove that solutions to the Ricci-DeTurck flow, the surface…

Analysis of PDEs · Mathematics 2016-09-29 Yuanzhen Shao

This article reports recent developments of the research on Hamilton's Ricci flow and its applications.

Differential Geometry · Mathematics 2007-05-23 Huai-Dong Cao , Bennett Chow

In the third part of this series of papers, we establish several topological results that will become important for studying the long-time behavior of Ricci flows with surgery. In the first part of this paper we recall some elementary…

Differential Geometry · Mathematics 2018-03-16 Richard H. Bamler

We construct the classical mechanics associated with a conformally flat Riemannian metric on a compact, n-dimensional manifold without boundary. The corresponding gradient Ricci flow equation turns out to equal the time-dependent…

High Energy Physics - Theory · Physics 2009-10-16 S. Abraham , P. Fernandez de Cordoba , J. M. Isidro , J. L. G. Santander

Using a recently developed piecewise flat method, numerical evolutions of the Ricci flow are computed for a number of manifolds, using a number of different mesh types, and shown to converge to the expected smooth behaviour as the mesh…

Differential Geometry · Mathematics 2024-02-26 Rory Conboye

In this survey article, we discuss some topics on self-similar solutions to the Ricci flow and the mean curvature flow. Self-similar solutions to the Ricci flow are known as Ricci solitons. In the first part of this paper we discuss a lower…

Differential Geometry · Mathematics 2012-06-11 Akito Futaki

In this short note we show that non-negative Ricci curvature is not preserved under Ricci flow for closed manifolds of dimensions four and above, strengthening a previous result of Knopf in \cite{K} for complete non-compact manifolds of…

Differential Geometry · Mathematics 2009-12-01 Davi Maximo

We review different notions of synthetic Ricci flow that apply to time-dependent families of metric measure spaces and which are based on properties of the heat flow, ideas from optimal transport, and the asymptotic behaviour of volumes.…

Differential Geometry · Mathematics 2025-11-17 Matthias Erbar , Marco Flaim , Eric Hupp , Zhenhao Li , Timo Schultz , Karl-Theodor Sturm

Conformal Ricci solitons are self similar solutions of the conformal Ricci flow equation. This paper deals with the study of conformal Ricci solitons within the framework of warped product manifolds which extends the notion of usual…

Differential Geometry · Mathematics 2021-04-02 Dipen Ganguly , Nirabhra Basu , Arindam Bhattacharyya

The examples of the Ricci flows on four-dimendionsl manifolds which are determined by help of nonlinear differentials equations of the type of Monge-Ampere are constructed. Their particular solutions and their properties are discussed.

General Physics · Physics 2011-11-17 Valerii Dryuma

We establish the existence of K\"ahler-Ricci flow on pseudoconvex domains with general initial metric without curvature bounds. Moreover we prove that this flow is simultaneously complete, and its normalized version converge to the complete…

Differential Geometry · Mathematics 2018-03-28 Huabin Ge , Aijin Lin , Liangming Shen

We study $n$-dimensional Ricci flows with non-negative Ricci curvature where the curvature is pointwise controlled by the scalar curvature and bounded by $C/t$, starting at metric cones which are Reifenberg outside the tip. We show that any…

Differential Geometry · Mathematics 2024-03-19 Alix Deruelle , Felix Schulze , Miles Simon

We present two new conditions to extend the Ricci flow on a compact manifold over a finite time, which are improvements of some known extension theorems.

Differential Geometry · Mathematics 2012-07-17 Fei He

Important models for immortal solutions of Ricci flow that collapse with bounded curvature come from locally G-invariant solutions on principal bundles, where G is a nilpotent Lie group. In this paper, we establish convergence and…

Differential Geometry · Mathematics 2009-03-06 Dan Knopf

In this paper, we study short-time existence of static flow on complete noncompact asymptotically static manifolds from the point of view that the stationary points of the evolution equations can be interpreted as static solutions of the…

Differential Geometry · Mathematics 2015-05-30 Xue Hu , Yuguang Shi

We establish several quantitative results about singular Ricci flows, including estimates on the curvature and volume, and the set of singular times.

Differential Geometry · Mathematics 2018-11-20 Bruce Kleiner , John Lott

In this paper we study a boundary value problem for the Ricci flow in the two dimensional ball endowed with a rotationally symmetric metric. We show short and long time existence results. We construct families of metrics for which the flow…

Differential Geometry · Mathematics 2007-05-23 Jean Cortissoz
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