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This is the first of a series of papers, where we introduce a new class of estimates for the Ricci flow, and use them both to characterize solutions of the Ricci flow and to provide a notion of weak solutions to the Ricci flow in the…

Differential Geometry · Mathematics 2015-04-06 Robert Haslhofer , Aaron Naber

The Ricci flow equation of a conformally flat Riemannian metric on a closed 2-dimensional configuration space is analysed. It turns out to be equivalent to the classical Hamilton-Jacobi equation for a point particle subject to a potential…

High Energy Physics - Theory · Physics 2009-07-24 J. M. Isidro , J. L. G. Santander , P. Fernandez de Cordoba

The Almost Hermitian Curvature flow was introduced by Streets and Tian in order to study almost hermitian structures, with a particular interest in symplectic structures. This flow is given by a diffusion-reaction equation. Hence it is…

Differential Geometry · Mathematics 2013-09-05 Daniel J. Smith

In this article and in its sequel we propose the study of certain discretizations of geometric evolution equations as an approach to the study of the existence problem of some elliptic partial differential equations of a geometric nature as…

Differential Geometry · Mathematics 2008-06-02 Yanir A. Rubinstein

In this paper, we study the Ricci flow on a closed manifold and finite time interval $[0,T)~(T < \infty)$ on which certain integral curvature energies are finite. We prove that in dimension four, such flow converges to a smooth Riemannian…

Differential Geometry · Mathematics 2021-11-10 Shota Hamanaka

In our previous paper math.DG/0010008, we develop some new techniques in attacking the convergence problems for the K\"ahler Ricci flow. The one of main ideas is to find a set of new functionals on curvature tensors such that the Ricci flow…

Differential Geometry · Mathematics 2009-11-07 X. X. Chen , G. Tian

We prove uniform diameter estimates, volume non-collapsing estimates and Gromov-Hausdorff convergence for the normalized Chern-Ricci flow on smooth complex minimal surfaces of general type, starting from an arbitrary Hermitian metric. This…

Differential Geometry · Mathematics 2026-05-22 Haoyuan Sun

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…

Differential Geometry · Mathematics 2017-01-03 Valentino Tosatti , Yuguang Zhang

We construct smooth solutions to Ricci flow starting from a class of singular metrics and give asymptotics for the forward evolution. The singular metrics heal with a set of points (of codimension at least three) coming out of the singular…

Differential Geometry · Mathematics 2017-04-24 Timothy Carson

We consider the Ricci flow for simply connected nilmanifolds, which translates to a Ricci flow on the space of nilpotent metric Lie algebras. We consider the evolution of the inner product and the evolution of structure constants, as well…

Differential Geometry · Mathematics 2008-12-12 Tracy L. Payne

This is a survey of some of the recent developments on the geometric and analytic aspects of the Anomaly flow. It is a flow of $(2,2)$-forms on a $3$-fold which was originally motivated by string theory and the need to preserve the…

Differential Geometry · Mathematics 2018-07-10 Duong H. Phong , Sebastien Picard , Xiangwen Zhang

Let $X$ be a compact K\"ahler manifold, $E\to X$ a Hermitian vector bundle and $L\to X$ an ample line bundle. We construct a non-linear heat flow corresponding to the almost Hermitian-Einstein equation introduced by N.C. Leung, and prove…

Differential Geometry · Mathematics 2007-05-23 Chiung-Nan Tsai

We prove that Ricci flows with almost maximal extinction time must be nearly round, provided that they have positive isotropic curvature when crossed with $\mathbb{R}^{2}$. As an application, we show that positively curved metrics on…

Differential Geometry · Mathematics 2015-06-11 Richard H. Bamler , Davi Maximo

We survey some recent developments on solutions of the K\"ahler-Ricci flow on compact K\"ahler manifolds which exist for all positive times.

Differential Geometry · Mathematics 2024-08-19 Valentino Tosatti

We study curvature flows in the locally homogeneous case (e.g. compact quotients of Lie groups, solvmanifolds, nilmanifolds) in a unified way, by considering a generic flow under just a few natural conditions on the broad class of…

Differential Geometry · Mathematics 2014-05-22 Jorge Lauret

We investigate how to obtain various flows of K\"ahler metrics on a fixed manifold as variations of K\"ahler reductions of a metric satisfying a given static equation on a higher dimensional manifold. We identify static equations that…

Differential Geometry · Mathematics 2019-09-12 Claudio Arezzo , Alberto Della Vedova , Gabriele La Nave

Let X be a quasiprojective manifold given by the complement of a divisor $\bD$ with normal crossings in a smooth projective manifold $\bX$. Using a natural compactification of $X$ by a manifold with corners $\tX$, we describe the full…

Differential Geometry · Mathematics 2013-03-19 Frédéric Rochon , Zhou Zhang

In this paper, we study the torsion flow which is served as the CR analogue of the Ricci flow in a closed pseudohermitian manifold. We show that there exists a unique smooth solution to the CR torsion flow in a small time interval with the…

Differential Geometry · Mathematics 2018-04-19 Shu-Cheng Chang , Chin-Tung Wu

Hermitian, pluriclosed metrics with vanishing Bismut-Ricci form give a natural extension of Calabi-Yau metrics to the setting of complex, non-K\"ahler manifolds, and arise independently in mathematical physics. We reinterpret this condition…

Differential Geometry · Mathematics 2021-06-28 Mario Garcia-Fernandez , Joshua Jordan , Jeffrey Streets

In this paper we prove local existence of a Ricci de Turck flow starting at a space with incomplete edge singularities and flowing for a short time within a class of incomplete edge manifolds. We derive regularity properties for the…

Differential Geometry · Mathematics 2020-05-19 Boris Vertman
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