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相关论文: A complete bounded minimal cylinder in R^3

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Let $M$ be a closed hyperbolic 3-manifold that admits no infinitesimal conformally-flat deformations. Examples of such manifolds were constructed by Kapovich. Then if $g$ is a Riemannian metric on $M$ with scalar curvature greater than or…

微分几何 · 数学 2021-10-20 Ben Lowe

We show that a minimal surface meeting a sphere at a 90-degree angle can be reflected across the sphere. Using this reflection, we prove the uniqueness that every embedded free boundary minimal annulus in a ball is necessarily the critical…

微分几何 · 数学 2025-01-07 Jaigyoung Choe

We construct, for any $H\in \mathbb{R}$, infinitely many free boundary annuli in geodesic balls of $\mathbb{S}^3$ with constant mean curvature $H$ and a discrete, non-rotational, symmetry group. Some of these free boundary CMC annuli are…

微分几何 · 数学 2024-03-08 Alberto Cerezo , Isabel Fernandez , Pablo Mira

Minimal surfaces in the Riemannian product of surfaces of constant curvature have been considered recently, particularly as these products arise as spaces of oriented geodesics of 3-dimensional space-forms. This papers considers more…

微分几何 · 数学 2024-12-10 Nikos Georgiou , Brendan Guilfoyle

In this article, we determine the existing condition of cylinders in smooth minimal geometrically rational surfaces over a perfect field. Furthermore, we show that for any birational map between smooth projective surfaces, one contains a…

代数几何 · 数学 2023-04-26 Masatomo Sawahara

In this paper, we study the space of translational limits T(M) of a surface M properly embedded in R^3 with nonzero constant mean curvature and bounded second fundamental form. There is a natural map T which assigns to any surface M' in…

微分几何 · 数学 2008-05-13 William H. Meeks , Giuseppe Tinaglia

In this paper, we establish a min-max theory for constructing minimal disks with free boundary in any closed Riemannian manifold. The main result is an effective version of the partial Morse theory for minimal disks with free boundary…

偏微分方程分析 · 数学 2020-04-01 Longzhi Lin , Ao Sun , Xin Zhou

In this paper we raise the question whether every closed Riemannian manifold has a spine of minimal area, and we answer it affirmatively in the surface case. On constant curvature surfaces we introduce the spine systole, a continuous real…

几何拓扑 · 数学 2020-03-19 Bruno Martelli , Matteo Novaga , Alessandra Pluda , Stefano Riolo

We study minimal cylinders in the three-dimensional Heisenberg group ${\rm Nil}_3$ using the generalized Weierstrass type representation, the so-called loop group method. We characterize all non-vertical minimal cylinders in terms of pairs…

微分几何 · 数学 2022-11-08 Shimpei Kobayashi

We use elementary methods to construct a minimal lamination of the interior of a positive cone in R3.

微分几何 · 数学 2013-12-06 Christine Breiner , Stephen J. Kleene

In this survey, we discuss various aspects of the minimal surface equation in the three-sphere S^3. After recalling the basic definitions, we describe a family of immersed minimal tori with rotational symmetry. We then review the known…

微分几何 · 数学 2013-07-29 S. Brendle

It has recently been established byWang and Xia [WX] that local minimizers of perimeter within a ball subject to a volume constraint must be spherical caps or planes through the origin. This verifies a conjecture of the authors and is in…

偏微分方程分析 · 数学 2017-11-02 Peter Sternberg , Kevin Zumbrun

In this paper we characterize concircular helices in $R^3$ by means of a differential equation involving their curvature and torsion. We find a full description of concircular surfaces in $R^3$ as a special family of ruled surfaces, and we…

微分几何 · 数学 2026-01-28 Pascual Lucas , José Antonio Ortega-Yagües

The monodromy of torus bundles associated to completely integrable systems can be computed using geometric techniques (constructing homology cycles) or analytic arguments (computing discontinuities of abelian integrals). In this article we…

数学物理 · 物理学 2017-05-08 K. Efstathiou , A. Giacobbe , P. Mardešić , D. Sugny

In this paper we prove an area comparison result for certain totally geodesic surfaces in 3-manifolds with a lower bound on the scalar curvature. This result is a variant of a comparison theorem of Heintze-Karcher for minimal hypersurfaces…

微分几何 · 数学 2011-08-08 Mario Micallef , Vlad Moraru

Consider a strictly convex bounded regular domain $C$ of $\R^3$. For any arbitrary finite topological type we find a compact Riemann surface $\mathcal{M}$, an open domain $M\subset \mathcal{M}$ with the fixed topological type, and a…

微分几何 · 数学 2008-11-19 Antonio Alarcon

We prove that, among the polygons in a punctured disc with fixed angles, the perimeter is minimized by the polygon with an inscribed horocycle centered at the puncture. We generalize this to a disc with a cone point and to an annulus with a…

几何拓扑 · 数学 2016-09-28 Joan Porti

We study properties of the minimal surface in the Area Law Solution \cite{M93}, \cite{M19a}, \cite{M19b}. We find out that Area Law holds exactly for 2D turbulence as well as for arbitrary planar loop in higher dimensions. This relies on…

高能物理 - 理论 · 物理学 2019-06-28 Alexander Migdal

We prove that the area of a free boundary minimal surface $\Sigma^2 \subset B^n$, where $B^n$ is a geodesic ball contained in a round hemisphere $\mathbb{S}^n_+$, is at least as big as that of a geodesic disk with the same radius as $B^n$;…

微分几何 · 数学 2018-07-03 Brian Freidin , Peter McGrath

The goal of this article is to study minimal surfaces in $\mathbb{M}^2 \times \mathbb{R}$ having finite total curvature, where $\mathbb{M}^2$ is a Hadamard manifold. The main result gives a formula to compute the total curvature in terms of…

微分几何 · 数学 2019-01-24 Rafael Ponte
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