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Related papers: On the Area of Immersed Minimal Annuli in a Slab

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Consider a non-planar orientable minimal surface S in a slab which is possibly with genus or with more than two boundary components. We show that there exists a catenoidal waist W in the slab whose flux has the same vertical component as S…

Differential Geometry · Mathematics 2015-03-11 Jaigyoung Choe , Benoit Daniel

In this note, we use a result of Osserman and Schiffer \cite{OS} to give a variational characterization of the catenoid. Namely, we show that subsets of the catenoid minimize area within a geometrically natural class of minimal annuli. To…

Differential Geometry · Mathematics 2016-05-27 Jacob Bernstein , Christine Breiner

We show that an immersed minimal annulus, with two planar boundary curves along which the surface meets these planes with constant contact angle, is part of the catenoid.

Differential Geometry · Mathematics 2009-12-02 Juncheol Pyo

In $\mathbb{S}^2 \times \mathbb{R}$ there is a two-parameter family of properly embedded minimal annuli foliated by circles. In this paper we show that this family contains all properly embedded minimal annuli. We use the description of…

Differential Geometry · Mathematics 2020-12-21 L. Hauswirth , M. Kilian , M. U. Schmidt

We combine geometric methods with numerical box search algorithm to show that the minimal area of a convex set on the plane which can cover every closed plane curve of unit length is at least 0.0975. This improves the best previous lower…

Metric Geometry · Mathematics 2019-05-02 Bogdan Grechuk , Sittichoke Som-Am

Motivated by the large ammount of results obtained for minimal and positive constant mean curvature surfaces in several ambient spaces, the aim of this paper is to obtain half-space theorems for properly immersed surfaces in $\mathbb{R}^3$…

Differential Geometry · Mathematics 2019-01-15 Antonio Bueno

We improve a lower bound for the smallest area of convex covers for closed unit curves from 0.0975 to 0.1, which makes it substantially closer to the current best upper bound 0.11023. We did this by considering the minimal area of convex…

Metric Geometry · Mathematics 2020-04-08 Bogdan Grechuk , Sittichoke Som-am

We construct complete, embedded minimal annuli asymptotic to vertical planes in the Riemannian 3-manifold PSL. The boundary of these annuli consists of 4 vertical lines at infinity. They are constructed by taking the limit of a sequence of…

Differential Geometry · Mathematics 2021-09-28 Pascal Collin , Laurent Hauswirth , Minh Hoang Nguyen

In this paper we study the moduli space of properly Alexandrov-embedded, minimal annuli in $\mathbb{H}^2 \times \mathbb{R}$ with horizontal ends. We say that the ends are horizontal when they are graphs of $\mathcal{C}^{2, \alpha}$…

Differential Geometry · Mathematics 2018-12-12 Leonor Ferrer , Francisco Martin , Rafe Mazzeo , M. Magdalena Rodriguez

We study minimal annuli in $\mathbb{S}^2 \times \mathbb{R}$ of finite type by relating them to harmonic maps $\mathbb{C} \to \mathbb{S}^2$ of finite type. We rephrase an iteration by Pinkall-Sterling in terms of polynomial Killing fields.…

Differential Geometry · Mathematics 2014-11-07 L. Hauswirth , M. Kilian , M. U. Schmidt

For the minimal graph with strict convex level sets, we find an auxiliary function to study the Gaussian curvature of the level sets. We prove that this curvature function is a concave function with respect to the height of the minimal…

Analysis of PDEs · Mathematics 2016-01-20 Pei-He Wang

Using a new method we give elementary estimates for the capacity of non-contractible annuli on cylinders and provide examples, where these inequalities are sharp. Here the lower bound depends only on the area of the annulus. In the case of…

Differential Geometry · Mathematics 2011-05-26 Bjoern Muetzel

We use minimal area metrics to generate all nonorientable string diagrams. The surfaces in unoriented string theory have nontrivial open curves and nontrivial closed curves whose neighborhoods are either annuli or Mobius strips. We define a…

High Energy Physics - Theory · Physics 2007-05-23 Oliver DeWolfe

The entanglement entropy of an annulus is examined in a three-dimensional system with or without a gap. For a free massive scalar field theory, we numerically calculate the mutual information across an annulus. We also study the holographic…

High Energy Physics - Theory · Physics 2015-05-20 Yuki Nakaguchi , Tatsuma Nishioka

We study the volume of extrinsic balls and the capacity of extrinsic annuli in minimal submanifolds which are properly immersed with controlled radial sectional curvatures into an ambient manifold with a pole. The key results are concerned…

Differential Geometry · Mathematics 2014-01-08 Vicent Gimeno , Steen Markvorsen

Differential growth processes play a prominent role in shaping leaves and biological tissues. Using both analytical and numerical calculations, we consider the shapes of closed, elastic strips which have been subjected to an inhomogeneous…

Materials Science · Physics 2011-01-19 Bryan Gin-ge Chen , Christian D. Santangelo

We present a short and flexible improvement-of-flatness argument adapted to the setting of exterior domains, where one is naturally led to work with annuli instead of balls. As a model application in the classical setting of minimal…

Differential Geometry · Mathematics 2026-05-13 Xavier Fernández-Real , Enric Florit-Simon , Joaquim Serra

We consider compact connected minimal surfaces, with a pair of boundary curves (not necessarily convex) in distinct planes, that have least-area amongst all orientable surfaces with the same boundary. When the planes containing these two…

Differential Geometry · Mathematics 2008-04-29 Wayne Rossman

Let $P$ be a planar set of $n$ points in general position. We consider the problem of computing an orientation of the plane for which the Rectilinear Convex Hull of $P$ has minimum area. Bae et al. (Computational Geometry: Theory and…

Computational Geometry · Computer Science 2017-12-29 Carlos Alegría-Galicia , Tzolkin Garduño , Carlos Seara , Areli Rosas-Navarrete , Jorge Urrutia

This paper is the third in a series where we describe the space of all embedded minimal surfaces of fixed genus in a fixed (but arbitrary) closed 3-manifold. In [CM3]-[CM5] we describe the case where the surfaces are topologically disks on…

Analysis of PDEs · Mathematics 2007-05-23 Tobias H. Colding , William P. Minicozzi
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