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We construct free boundary minimal surfaces (FBMS) embedded in the unit ball in the Euclidean three-space which are compact, lie arbitrarily close to the boundary unit sphere, are of genus zero, and their boundary has an arbitrarily large…

Differential Geometry · Mathematics 2021-11-23 Nikolaos Kapouleas , Jiahua Zou

We construct embedded closed minimal surfaces in the round three-sphere, resembling two parallel copies of the Clifford torus, joined by m^2 small catenoidal bridges symmetrically arranged along a square lattice of points on the torus.

Differential Geometry · Mathematics 2007-05-23 Nicolaos Kapouleas , Seong-Deog Yang

In this work, we investigate the existence of compact free-boundary minimal hypersurfaces immersed in several domains. Using an original integral identity for compact free-boundary minimal hypersurfaces that are immersed in a domain whose…

Differential Geometry · Mathematics 2022-09-28 Ezequiel Barbosa , Allan Freitas , Rodrigo Melo , Feliciano Vitório

We identify the Variational Principle governing inifinity-Harmonic maps, that is solutions to the Infinity-Laplacian. The system was first derived in the limit of the p-Laplacian as p->inifinity in [K2] and is recently studied in [K3]. Here…

Analysis of PDEs · Mathematics 2012-09-11 Nikolaos I. Katzourakis

In this paper, close surfaces are considered in 3-dimensional harmonic conformally flat space in point of the variation. It is shown that if the conformal vector field be tangent to surface and the sign of the mean curvature does not change…

Differential Geometry · Mathematics 2021-08-16 Najma mosadegh , Esmaiel Abedi

It was shown by Ramanathan \cite{R} that any compact oriented non-simply-connected minimal surface in the three-dimensional round sphere admits at most a finite set of pairwise noncongruent minimal isometric immersions. Here we show that…

Differential Geometry · Mathematics 2015-07-15 M. Dajczer , Th. Vlachos

We prove a structural theorem that provides a precise local picture of how a sequence of closed embedded minimal hypersurfaces with uniformly bounded index (and volume if the ambient dimension is greater than three) in a Riemannian manifold…

Differential Geometry · Mathematics 2019-07-01 Otis Chodosh , Daniel Ketover , Davi Maximo

This article presents an improvement and extension of the heuristic first presented by Hougardy, Lutz, and Zelke in 2010 for realizing triangulated orientable surfaces with few vertices by a simplex-wise linear embedding. The improvement…

Metric Geometry · Mathematics 2016-03-17 Ulrich Brehm , Undine Leopold

We introduce a square tiling/tetragonal strip representation to the P, D, and G triply periodic minimal surfaces. This approach is useful in identifying mixtures and grain boundaries of these surfaces that might be useful for material…

Materials Science · Physics 2024-11-20 Chern Chuang , Bih-Yaw Jin

We prove the existence of a one parameter family of minimal embedded hypersurfaces in $R^{n+1}$, for $n \geq 3$, which generalize the well known 2 dimensional "Riemann minimal surfaces". The hypersurfaces we obtain are complete, embedded,…

Differential Geometry · Mathematics 2007-05-23 S. Kaabachi , F. Pacard

On the basis of loop group decompositions (Birkhoff decompositions), we give a discrete version of the nonlinear d'Alembert formula, a method of separation of variables of difference equations, for discrete constant negative Gauss curvature…

Differential Geometry · Mathematics 2017-05-17 Shimpei Kobayashi

In this paper we develop some combinatorial models for continuous spaces. In this spirit we study the approximations of continuous spaces by graphs, molecular spaces and coordinate matrices. We define the dimension on a discrete space by…

General Relativity and Quantum Cosmology · Physics 2009-10-22 Alexander V. Evako

The structure of the spectrum of the three-dimensional Dirichlet Laplacian in the 3D polyhedral layer of fixed width is studied. It appears that the essential spectrum is defined by the smallest dihedral angle that forms the boundary of the…

Spectral Theory · Mathematics 2023-05-16 Fedor Bakharev , Sergey Matveenko

We show that immersed minimal surfaces of $\mathbb{R}^{3}$ with bounded curvature and proper self intersections are proper. We also show that the restriction of the immersing map to a wide component is always proper. When the immersing map…

Differential Geometry · Mathematics 2007-05-23 G. Pacelli Bessa , Luquesio P. Jorge

The isotropic 3-space I^3 which is one of the Cayley--Klein spaces is obtained from the Euclidean space by substituting the usual Euclidean distance with the isotropic distance. In the present paper, we give several classifications on the…

Differential Geometry · Mathematics 2017-06-05 Muhittin Evren Aydin

How much cutting is needed to simplify the topology of a surface? We provide bounds for several instances of this question, for the minimum length of topologically non-trivial closed curves, pants decompositions, and cut graphs with a given…

Combinatorics · Mathematics 2015-04-08 Éric Colin de Verdière , Alfredo Hubard , Arnaud de Mesmay

We consider a surface $M$ immersed in $\mathbb{R}^3$ with induced metric $g=\psi\delta_2$ where $\delta_2$ is the two dimensional Euclidean metric. We then construct a system of partial differential equations that constrain $M$ to lift to a…

Differential Geometry · Mathematics 2007-05-23 Aaron Peterson , Stephen Taylor

We study periodic tessellations of the Euclidean space with unequal cells arising from the minimization of perimeter functionals. Existence results and qualitative properties of minimizers are discussed for different classes of problems,…

Analysis of PDEs · Mathematics 2024-06-19 Francesco Nobili , Matteo Novaga

We prove: a properly embedded, genus-one minimal surface that is asymptotic to a helicoid and that contains two straight lines must intersect that helicoid precisely in those two lines. In particular, the two lines divide the surface into…

Differential Geometry · Mathematics 2010-06-08 David Hoffman , Brian White

We discuss translation minimal surfaces, homothetical minimal surfaces, and separable minimal surfaces in the $3$-space with $2m$-norm.

Differential Geometry · Mathematics 2024-07-15 Makoto Sakaki , Ryota Tanaka