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相关论文: A sharp quantitative Alexandrov inequality and app…

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We characterize the long time behaviour of a discrete-in-time approximation of the volume preserving fractional mean curvature flow. In particular, we prove that the discrete flow starting from any bounded set of finite fractional perimeter…

偏微分方程分析 · 数学 2023-01-10 De Gennaro Daniele , Andrea Kubin , Anna Kubin

We prove a new quantitative version of the Alexandrov theorem which states that if the mean curvature of a regular set in R^{n+1} is close to a constant in L^{n}-sense, then the set is close to a union of disjoint balls with respect to the…

偏微分方程分析 · 数学 2023-06-07 Vesa Julin , Joonas Niinikoski

We study the asymptotic behavior of flat flow solutions to the periodic and planar two-phase Mullins-Sekerka flow and area-preserving curvature flow. We show that flat flows converge to either a finite union of equally sized disjoint disks…

微分几何 · 数学 2025-03-11 Vedansh Arya , Daniele De Gennaro , Anna Kubin

We provide the first general result for the asymptotics of the area preserving mean curvature flow in two dimensions showing that flat flow solutions, starting from any bounded set of finite perimeter, converge with exponential rate to a…

微分几何 · 数学 2021-12-30 Vesa Julin , Massimiliano Morini , Marcello Ponsiglione , Emanuele Spadaro

We study the volume preserving mean curvature flow of a surface immersed in an asymptotically flat $3$-manifold modeling an isolated gravitating system in General Relativity. We show that, if the ambient manifold has positive ADM mass and…

微分几何 · 数学 2025-01-23 Carlo Sinestrari , Jacopo Tenan

We show that the discrete approximate volume preserving mean curvature flow in the flat torus $\mathbb{T}^N$ starting near a strictly stable critical set $E$ of the perimeter converges in the long time to a translate of $E$ exponentially…

偏微分方程分析 · 数学 2022-12-13 Daniele De Gennaro , Anna Kubin

We demonstrate that the property of being Alexandrov immersed is preserved along mean curvature flow. Furthermore, we demonstrate that mean curvature flow techniques for mean convex embedded flows such as noncollapsing and gradient…

微分几何 · 数学 2022-06-29 Ben Lambert , Elena Mäder-Baumdicker

Alexandrov's inequalities imply that for any convex body $A$, the sequence of intrinsic volumes $V_1(A),\ldots,V_n(A)$ is non-increasing (when suitably normalized). Milman's random version of Dvoretzky's theorem shows that a large initial…

度量几何 · 数学 2017-02-22 Grigoris Paouris , Peter Pivovarov , Petros Valettas

In this note, we estimate the upper bound of volume of closed positively or nonnegatively curved Alexandrov space $X$ with strictly convex boundary. We also discuss the equality case. In particular, the Boundary Conjecture holds when the…

微分几何 · 数学 2020-10-23 Jian Ge

The purpose of this paper is to establish limit laws for volume preserving almost Anosov flows on $3$-three manifolds having a neutral periodic of cubic saddle type. In the process, we derive estimates for the Dulac maps for cubic neutral…

动力系统 · 数学 2019-08-19 Henk Bruin

We obtain sharp volume bounds on the boundaries of Alexandrov spaces with given lower curvature bound, dimension, and radius. We also completely classify the rigidity case and analyze almost rigidity. Our results are new even for smooth…

微分几何 · 数学 2023-08-29 Qin Deng , Vitali Kapovitch

We will show that the quantitative maximal volume entropy rigidity holds on Alexandrov spaces. More precisely, given $N, D$, there exists $\epsilon(N, D)>0$, such that for $\epsilon<\epsilon(N, D)$, if $X$ is an $N$-dimensional Alexandrov…

微分几何 · 数学 2021-12-20 Lina Chen

We find a monotone quantity along the inverse mean curvature flow and use it to prove an Alexandrov-Fenchel-type inequality for strictly convex hypersurfaces in the $n$-dimensional sphere, $n \geq 3$.

微分几何 · 数学 2016-09-20 Frederico Girão , Neilha M. Pinheiro

In this paper, we study flows of hypersurfaces in hyperbolic space, and apply them to prove geometric inequalities. In the first part of the paper, we consider volume preserving flows by a family of curvature functions including positive…

微分几何 · 数学 2025-08-28 Ben Andrews , Xuzhong Chen , Yong Wei

We relate the existence of many infinite geodesics on Alexandrov spaces to a statement about the average growth of volumes of balls. We deduce that the geodesic flow exists and preserves the Liouville measure in several important cases. The…

微分几何 · 数学 2021-02-02 Vitali Kapovitch , Alexander Lytchak , Anton Petrunin

We consider the Gauss curvature type flow for uniformly convex hypersurfaces in the hyperbolic space $\mathbb{H}^{n+1}\ (n\geqslant 2)$. We prove that if the initial closed hypersurface is smooth and uniformly convex, then the smooth…

微分几何 · 数学 2024-01-19 Tianci Luo , Rong Zhou

We study the motion of sets by anisotropic curvature under a volume constraint in the plane. We establish the exponential convergence of the area-preserving anisotropic flat flow to a disjoint union of Wulff shapes of equal area, the…

偏微分方程分析 · 数学 2024-05-15 Eric Kim , Dohyun Kwon

We investigate the formation of singularities for surfaces evolving by volume preserving mean curvature flow. For axially symmetric flows - surfaces of revolution - in $\mathbb{R}^3$ with Neumann boundary conditions, we prove that the first…

微分几何 · 数学 2019-02-26 Maria Athanassenas , Sevvandi Kandanaarachchi

In this article, we introduce a variational algorithm, in the spirit of the minimizing movements scheme, to model the volume-preserving anisotropic mean curvature flow in 2D. We show that this algorithm can be used to prove the existence of…

偏微分方程分析 · 数学 2025-08-06 Andrea Kubin , Domenico Angelo La Manna , Enrico Pasqualetto

In this survey we present the state of the art about the asymptotic behavior and stability of the modified Mullins--Sekerka flow and the surface diffusion flow of smooth sets, mainly due to E.~Acerbi, N.~Fusco, V.Julin and M.Morini. First…

偏微分方程分析 · 数学 2022-12-23 Serena Della Corte , Antonia Diana , Carlo Mantegazza
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