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We consider the surface diffusion and Willmore flows acting on a general class of (possibly non-compact) hypersurfaces parameterized over a uniformly regular reference manifold possessing a tubular neighborhood with uniform radius. The…

偏微分方程分析 · 数学 2019-01-03 Jeremy LeCrone , Yuanzhen Shao , Gieri Simonett

Microfluidic systems are usually fabricated with soft materials that deform due to the fluid stresses. Recent experimental and theoretical studies on the steady flow in shallow deformable microchannels have shown that the flow rate is a…

流体动力学 · 物理学 2020-09-14 A. Martínez-Calvo , A. Sevilla , G. G. Peng , H. A. Stone

S. K. Donaldson asked whether the lower bound of the Calabi functional is achieved by a sequence the normalized Donaldson-Futaki invariants. We answer the question for the Ricci curvature formalism, in place of the scalar curvature. The…

微分几何 · 数学 2020-01-22 Tomoyuki Hisamoto

We consider the long-time existence of the anomaly flow on a compact complex $3$-fold with general slope parameter $\alpha'$. In particular, we obtain integral Shi-type estimates for the flow by adapting a integration-by-parts type argument…

微分几何 · 数学 2024-11-06 Caleb Suan

In this paper we consider a Ricci de Turck flow of spaces with isolated conical singularities, which preserves the conical structure along the flow. We establish that a given initial regularity of Ricci curvature is preserved along the…

微分几何 · 数学 2023-07-26 Klaus Kroencke , Tobias Marxen , Boris Vertman

In this paper, we introduce discrete Calabi flow to the graphics research community and present a novel conformal mesh parameterization algorithm. Calabi energy has a succinct and explicit format. Its corresponding flow is conformal and…

图形学 · 计算机科学 2018-07-24 Hui Zhao , Xuan Li , Huabin Ge , Xianfeng Gu , Na Lei

In this paper, we investigate the mean curvature flow having equifocal submanifolds as initial data. The investigation are performed by investigating the mean curvature flow having the lifted submanifolds to a Hilbert space through a…

微分几何 · 数学 2009-08-01 Naoyuki Koike

We consider the flow of closed convex hypersurfaces in Euclidean space $\mathbb{R}^{n+1}$ with speed given by a power of the $k$-th mean curvature $E_k$ plus a global term chosen to impose a constraint involving the enclosed volume…

微分几何 · 数学 2021-02-12 Ben Andrews , Yong Wei

We study global aspects of the mean curvature flow of non-separating hypersurfaces $S$ in closed manifolds. For instance, if $S$ has non-vanishing mean curvature, we show its level set flow converges smoothly towards an embedded minimal…

微分几何 · 数学 2021-05-18 Marco A. M. Guaraco , Vanderson Lima , Franco Vargas Pallete

Mean curvature flow of clusters of n-dimensional surfaces in R^{n+k} that meet in triples at equal angles along smooth edges and higher order junctions on lower dimensional faces is a natural extension of classical mean curvature flow. We…

微分几何 · 数学 2017-06-07 Felix Schulze , Brian White

The skew mean curvature flow is an evolution equation for a $d$ dimensional manifold immersed into $\mathbb{R}^{d+2}$, and which moves along the binormal direction with a speed proportional to its mean curvature. In this article, we prove…

偏微分方程分析 · 数学 2022-09-20 Jiaxi Huang , Ze Li , Daniel Tataru

Normalizing flows have shown great promise for modelling flexible probability distributions in a computationally tractable way. However, whilst data is often naturally described on Riemannian manifolds such as spheres, torii, and hyperbolic…

机器学习 · 统计学 2020-12-10 Emile Mathieu , Maximilian Nickel

In this paper we study the short time existence problem for the (generalized) Lagrangian mean curvature flow in (almost) Calabi--Yau manifolds when the initial Lagrangian submanifold has isolated conical singularities modelled on stable…

微分几何 · 数学 2014-01-23 Tapio Behrndt

We show that the surface area preserving mean curvature flow in Euclidean space exists for all time and converges exponentially to a round sphere, if initially the L^2-norm of the traceless second fundamental form is small (but the initial…

微分几何 · 数学 2012-11-06 Zheng Huang , Longzhi Lin

We prove that, in the flat torus and in any dimension, the volume-preserving mean curvature flow and the surface diffusion flow, starting $C^{1,1}-$close to a strictly stable critical set of the perimeter $E$, exist for all times and…

微分几何 · 数学 2025-05-23 Daniele De Gennaro , Antonia Diana , Andrea Kubin , Anna Kubin

Let $N$ be a smooth $(n+l)$-dimensional Riemannian manifold. We show that if $V$ is an area-stationary union of three or more $C^{1,\mu}$ $n$-dimensional submanifolds-with-boundary $M_k \subset N$ with a common boundary $\Gamma$, then…

微分几何 · 数学 2016-09-27 Brian Krummel

Computing uniformization maps for surfaces has been a challenging problem and has many practical applications. In this paper, we provide a theoretically rigorous algorithm to compute such maps via combinatorial Calabi flow for vertex…

几何拓扑 · 数学 2020-01-29 Xiang Zhu , Xu Xu

In this paper we study $n$-dimensional Ricci flows $(M^n,g(t))_{t\in [0,T)},$ where $T< \infty$ is a potentially singular time, and for which the spatial $L^p$ norm, $p>\frac n 2$, of the scalar curvature is uniformly bounded on $[0,T).$ In…

微分几何 · 数学 2025-03-31 Jiawei Liu , Miles Simon

We study the Ricci flow of initial metrics which are C^0-perturbations of the hyperbolic metric on H^n. If the perturbation is bounded in the L^2-sense, and small enough in the C^0-sense, then we show the following: In dimensions four and…

微分几何 · 数学 2010-03-11 Oliver C. Schnürer , Felix Schulze , Miles Simon

We prove the existence and uniqueness of a $C^{1,1}$ solution of the $Q_k$ flow in the viscosity sense for compact convex hypersurfaces $\Sigma_t$ embedded in $R^{n+1}$ ($n \geq 2$) . In particular, for compact convex hypersurfaces with…

偏微分方程分析 · 数学 2009-04-06 M. Cristina Caputo , Panagiota Daskalopoulos , Natasa Sesum