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We construct a sequence of compact embedded minimal disks in the unit ball in Euclidean 3-space whose boundaries are in the boundary of the ball and where the curvatures blow up at every point of a line segment of the vertical axis,…

Differential Geometry · Mathematics 2009-04-01 Siddique Khan

A 1-plane graph is a graph together with a drawing in the plane in such a way that each edge is crossed at most once. A 1-plane graph is maximal if no edge can be added without violating either 1-planarity or simplicity. Let $m(n)$ denote…

Combinatorics · Mathematics 2025-02-18 Yuanqiu Huang , Zhangdong Ouyang , Licheng Zhang , Fengming Dong

Harmonic mappings have long intrigued researchers due to their intrinsic connection with minimal surfaces. In this paper, we investigate shearing of two distinct classes of univalent conformal mappings which are convex in horizontal…

Complex Variables · Mathematics 2023-10-17 Simran Bedi , Sanjay Kumar

We show that an $(n+1)$-bridge sphere for the unknot is a topologically minimal surface of index at most $n$.

Geometric Topology · Mathematics 2016-03-30 Jung Hoon Lee

We study the smallest intersecting and enclosing ball problems in Euclidean spaces for input objects that are compact and convex. They link and unify many problems in computational geometry and machine learning. We show that both problems…

Computational Geometry · Computer Science 2025-04-28 Jiaqi Zheng , Tiow-Seng Tan

We prove rigidity for hypersurfaces with boundary in the unit $(n+1)$-sphere with scalar curvature bounded below by $n(n-1)$. Under appropriate boundary conditions, the hypersurfaces are shown to be part of the equatorial spheres. The lower…

Differential Geometry · Mathematics 2016-12-28 Lan-Hsuan Huang , Damin Wu

We give an explicit construction of any simply-connected superconformal surface $\phi\colon M^2\to \R^4$ in Euclidean space in terms of a pair of conjugate minimal surfaces $g,h\colon M^2\to\R^4$. That $\phi$ is superconformal means that…

Differential Geometry · Mathematics 2007-10-30 Marcos Dajczer , Ruy Tojeiro

In this work, we prove that any two free boundary minimal hypersurfaces in the unit Euclidean ball have an intersection point in any half-ball. This is a strong version of the Frankel property proved by A. Fraser and M. Li \cite{FRLI}. As a…

Differential Geometry · Mathematics 2022-01-25 Ezequiel Barbosa , Alcides de Carvalho , Roney Santos

A subset of vertices of a graph is minimal if, within all subsets of the same size, its vertex boundary is minimal. We give a complete, geometric characterization of minimal sets for the planar integer lattice X. Our characterization…

Combinatorics · Mathematics 2020-09-28 Radhika Gupta , Ivan Levcovitz , Alexander Margolis , Emily Stark

We show that highly twisted minimal strips can undergo a non-singular transition, unlike the singular transitions seen in the M\"obius strip and the catenoid. If the strip is non-orientable this transition is topologically frustrated, and…

Soft Condensed Matter · Physics 2016-07-04 Thomas Machon , Gareth P. Alexander , Raymond E. Goldstein , Adriana I. Pesci

We show that there are a finite number of possible pictures for a surface in a tetrahedron with local index $n$. Combined with previous results, this establishes that any topologically minimal surface can be transformed into one with a…

Geometric Topology · Mathematics 2013-03-28 David Bachman

We prove that for every integer $t\ge 1$ there exists a constant $c_t$ such that for every $K_t$-minor-free graph $G$, and every set $S$ of balls in $G$, the minimum size of a set of vertices of $G$ intersecting all the balls of $S$ is at…

The Gauss map $g$ of a surface $\Sigma$ in $\mathbb{R}^4$ takes its values in the Grassmannian of oriented 2-planes of $\mathbb{R}^4$: $G^+(2,4)$. We give geometric criteria of stability for minimal surfaces in $\mathbb{R}^4$ in terms of…

Differential Geometry · Mathematics 2021-06-14 Ari Aiolfi , Marc Soret , Marina Ville

We prove that the Gauss map of a non-flat complete minimal surface immersed in $\mathbb{R}^n$ can omit a generic hypersurface $D$ of degree at most $ n^{n+2}(n+1)^{n+2}$.

Complex Variables · Mathematics 2024-07-24 Dinh Tuan Huynh

In this paper we investigate H-minimal graphs of lower regularity. We show that noncharactersitic C^1 H-minimal graphs whose components of the unit horizontal Gauss map are in W^{1,1} are ruled surfaces with C^2 seed curves. In a different…

Differential Geometry · Mathematics 2007-05-23 Scott D. Pauls

We describe the family of minimal graphs on strips with boundary values $\pm\infty$ disposed alternately on edges of length one, and whose conjugate graphs are contained in horizontal slabs of width one in $\mathbb{R}^3$. We can obtain as…

Differential Geometry · Mathematics 2007-05-23 M. Magdalena Rodriguez

In this article we determine, for an infinite family of maps on the plane, the topology of the surface on which the minimal regular covering occurs. This infinite family includes all Archimedean maps.

Geometric Topology · Mathematics 2012-10-05 Thierry Coulbois , Daniel Pellicer , Miguel Raggi , Camilo Ramírez , Ferrán Valdez

We prove optimal regularity and a detailed analysis of the free boundary of the solutions to the thin obstacle problem for nonparametric minimal surfaces with flat obstacles.

Analysis of PDEs · Mathematics 2020-03-23 Matteo Focardi , Emanuele Spadaro

In this paper, we consider a Generalized Bernstein Theorem for a type of generalized minimal surfaces, namely minimal Plateau surfaces. We show that if an orientable minimal Plateau surface is stable and has quadratic area growth in…

Differential Geometry · Mathematics 2022-10-24 Gaoming Wang

In this article we introduce a definition of topological minimal sets, which is a generalization of that of Mumford-Shah-minimal sets. We prove some general properties as well as two existence theorems for topological minimal sets. As an…

Classical Analysis and ODEs · Mathematics 2011-03-22 Xiangyu Liang