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Related papers: Results on coupled Ricci and harmonic map flows

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[Dedicated to Richard S. Hamilton on forty years of Ricci flow] Gradient Ricci solitons have garnered significant attention both as self-similar solutions and singularity models of the Ricci flow. This survey article starts with a list of…

Differential Geometry · Mathematics 2024-09-23 Xiaodong Cao , Hung Tran

We show how solutions to the Ricci flow on Lorentzian manifolds, along with its generalizations, can be linked to Einstein's field equations. The approach involves deformations of the matter sector that are generated by quadratic…

High Energy Physics - Theory · Physics 2024-11-18 Tommaso Morone , Roberto Tateo

We introduce a classification conjecture for $\kappa$-solutions in 4d Ricci flow. Our conjectured list includes known examples from the literature, but also a new 1-parameter family of $\mathbb{Z}_2^2\times \mathrm{O}_3$-symmetric…

Differential Geometry · Mathematics 2024-03-14 Robert Haslhofer

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 this paper we prove that given a smoothly conformally compact metric there is a short-time solution to the Ricci flow that remains smoothly conformally compact. We adapt recent results of Schn\"urer, Schulze and Simon to prove a…

Analysis of PDEs · Mathematics 2015-05-20 Eric Bahuaud

We verify a conjecture of Perelman, which states that there exists a canonical Ricci flow through singularities starting from an arbitrary compact Riemannian 3-manifold. Our main result is a uniqueness theorem for such flows, which,…

Differential Geometry · Mathematics 2018-04-19 Richard H. Bamler , Bruce Kleiner

As part of the general investigation of Ricci flow on complete surfaces with finite total curvature, we study this flow for surfaces with asymptotically conical (which includes as a special case asymptotically Euclidean) geometries. After…

Differential Geometry · Mathematics 2010-03-30 James Isenberg , Rafe Mazzeo , Natasa Sesum

We study harmonic map heat flow along ancient super Ricci flow, and derive several Liouville theorems with controlled growth from Perelman's reduced geometric viewpoint. For non-positively curved target spaces, our growth condition is…

Differential Geometry · Mathematics 2021-08-04 Keita Kunikawa , Yohei Sakurai

We show uniqueness of Ricci flows starting at a surface of uniformly negative curvature, with the assumption that the flows become complete instantaneously. Together with the more general existence result proved in [10], this settles the…

Analysis of PDEs · Mathematics 2011-08-22 Gregor Giesen , Peter M. Topping

We prove that for a compact 3-manifold M with boundary admitting an ideal triangulation T with valence at least 10 at all edges, there exists a unique complete hyperbolic metric with totally geodesic boundary, so that T is isotopic to a…

Differential Geometry · Mathematics 2022-08-17 Ke Feng , Huabin Ge , Bobo Hua

Following work of Ecker, we consider a weighted Gibbons-Hawking-York functional on a Riemannian manifold-with-boundary. We compute its variational properties and its time derivative under Perelman's modified Ricci flow. The answer has a…

Differential Geometry · Mathematics 2015-05-28 John Lott

The paper considers the Ricci flow, coupled with the harmonic map flow between two manifolds. We derive estimates for the fundamental solution of the corresponding conjugate heat equation and we prove an analog of Perelman's differential…

Differential Geometry · Mathematics 2013-10-08 Mihai Băileşteanu , Hung Tran

We construct a class of monotonic quantities along the normalized Ricci flow on closed n-dimensional manifolds.

Differential Geometry · Mathematics 2007-10-24 Jun Ling

We prove that at a finite singular time for the Harmonic Ricci Flow on a surface of positive genus both the energy density of the map component and the curvature of the domain manifold have to blow up simultaneously. As an immediate…

Differential Geometry · Mathematics 2017-03-24 Reto Buzano , Melanie Rupflin

Several geometric flows on symplectic manifolds are introduced which are potentially of interest in symplectic geometry and topology. They are motivated by the Type IIA flow and T-duality between flows in symplectic geometry and flows in…

Symplectic Geometry · Mathematics 2021-11-30 Teng Fei , Duong H. Phong

We consider smooth, not necessarily complete, Ricci flows, $(M,g(t))_{t\in (0,T)}$ with ${\mathrm{Ric}}(g(t)) \geq -1$ and $| {\mathrm{Rm}} (g(t))| \leq c/t$ for all $t\in (0 ,T)$ coming out of metric spaces $(M,d_0)$ in the sense that…

Differential Geometry · Mathematics 2020-06-05 Alix Deruelle , Felix Schulze , Miles Simon

In this paper we consider the Ricci flow on manifolds with boundary with appropriate control on its mean curvature and conformal class. We obtain higher order estimates for the curvature and second fundamental form near the boundary,…

Differential Geometry · Mathematics 2016-11-07 Panagiotis Gianniotis

In this paper we introduce the notion of rigidity for harmonic-Ricci solitons and we provide some characterizations of rigidity, generalizing some known results for Ricci solitons. In the compact case we are able to deal with not…

Differential Geometry · Mathematics 2020-06-16 Andrea Anselli

In this paper, we consider Ricci flows admitting closed and smooth tangent flows in the sense of Bamler [Bam20c]. The tangent flow in question can be either a tangent flow at infinity for an ancient Ricci flow, or a tangent flow at a…

Differential Geometry · Mathematics 2021-11-15 Pak-Yeung Chan , Zilu Ma , Yongjia Zhang

This paper studies the normalized Ricci flow on surfaces with conical singularities. It's proved that the normalized Ricci flow has a solution for a short time for initial metrics with conical singularities. Moreover, the solution makes…

Differential Geometry · Mathematics 2015-12-08 Hao Yin