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We obtain several new characterizations of ultrametric spaces in terms of roundness, generalized roundness, strict p-negative type, and p-polygonal equalities (p > 0). This allows new insight into the isometric embedding of ultrametric…

We refine Osserman's argument on the exceptional values of the Gauss map of algebraic minimal surfaces. This gives an effective estimate for the number of exceptional values and the totally ramified value number for a wider class of…

微分几何 · 数学 2007-05-23 Y. Kawakami , R. Kobayashi , R. Miyaoka

We present conditions on the Ricci curvature for complete, oriented, minimal submanifolds of Euclidean space, as well as the standard unit sphere, when the Gauss maps are bounded embeddings.

微分几何 · 数学 2009-09-15 Richard Atkins

We obtain a new differentiable sphere theorem for compact Lagrangian submanifolds in complex Euclidean space and complex projective space.

微分几何 · 数学 2011-09-08 Haizhong Li , Xianfeng Wang

Piecewise Euclidean structures (identified solid Euclidean polyhedra) on topological 3-dimensional manifolds and pseudo-manifolds are constructed so that they admit pseudo-foliations, a generalized type of foliation. The construction of…

微分几何 · 数学 2007-05-23 Simon P Morgan

In this paper, we gave some properties of binomial coefficient.

组合数学 · 数学 2017-01-24 Daniel Yaqubi , Madjid Mirzavaziri

This paper is the fifth and final in a series on embedded minimal surfaces. Following our earlier papers on disks, we prove here two main structure theorems for non-simply connected embedded minimal surfaces of any given fixed genus. The…

微分几何 · 数学 2012-11-21 Tobias H. Colding , William P. Minicozzi

In this paper, we prove the existence of the free boundary minimal hypersurface of least area in compact manifolds with boundary. Such hypersurface can be viewed as the ground state of the volume spectrum introduced by Gromov. Moreover, we…

微分几何 · 数学 2018-01-23 Qiang Guang , Zhichao Wang , Xin Zhou

Using the Lawson's existence theorem of minimal surfaces and the symmetries of the Hopf fibration, we will construct symmetric embedded closed minimal surfaces in the three dimensional sphere. These surfaces contain the Clifford torus, the…

几何拓扑 · 数学 2018-07-06 Sheng Bai , Chao Wang , Shicheng Wang

We study compact stable embedded minimal surfaces whose boundary is given by two collections of closed smooth Jordan curves in close planes of Euclidean 3-space. Our main result is a classification of these minimal surfaces, under certain…

微分几何 · 数学 2007-05-23 Rosanna Pearlstein

A surface M is called p-minimal if one of the coordinate functions is p-harmonic in the inner metric. We show that in the twodimensional case the Gaussian map of such surfaces is quasiconformal. In the case when the surface is a tube we…

微分几何 · 数学 2018-04-20 Vladimir G. Tkachev

We prove the existence of minimal hypersurfaces for the Dirichlet that extends a similar result of Jenkins and Serrin in Euclidean Space to Riemannian ambient manifolds

微分几何 · 数学 2013-07-31 Ari Aiolfi , Jaime Ripoll , Marc Soret

Using Traizet's regeneration method, we prove the existence of many new 3-dimensional families of embedded, doubly periodic minimal surfaces. All these families have a foliation of 3-dimensional Euclidean space by vertical planes as a…

微分几何 · 数学 2010-01-15 Peter Connor , Matthias Weber

We give a positive answer to M. Traizet's open question about the existence of complete embedded minimal surfaces with Scherk-ends without planar geodesics. In the singly periodic case, these examples get close to an extension of Traizet's…

微分几何 · 数学 2007-05-23 Francisco Martin , Valerio Ramos-Batista

An approximation theorem for minimal surfaces by complete minimal surfaces of finite total curvature in $\mathbb{R}^3$ is obtained. This Mergelyan type result can be extended to the family of complete minimal surfaces of weak finite total…

微分几何 · 数学 2015-03-13 Francisco J. Lopez

In \cite{CM5}, Colding and Minicozzi describe a type of compactness property possessed by sequences of embedded minimal surfaces in $\Real^3$ with finite genus and with boundaries going to $\infty$. They show that any such sequence either…

微分几何 · 数学 2009-07-06 Jacob Bernstein , Christine Breiner

We provide new structural results on sets of positive reach in Euclidean spaces and Riemannian manifolds.

度量几何 · 数学 2023-02-13 Alexander Lytchak

In this paper we describe a new deformation that connects minimal disks with planar ends with minimal disks with helicoidal ends. In this way, we are able to construct a family of complete minimal surfaces with helicoidal ends that contains…

微分几何 · 数学 2007-05-23 Leonor Ferrer , Francisco Martin

In earlier work we introduced topologically minimal surfaces as the analogue of geometrically minimal surfaces. Here we strengthen the analogy by showing that complicated amalgamations act as barriers to low genus, topologically minimal…

几何拓扑 · 数学 2009-03-11 David Bachman

It is shown that a superconformal surface with arbitrary codimension in flat Euclidean space has a (necessarily unique) dual superconformal surface if and only if the surface is S-Willmore, the latter a well-known necessary condition to…

微分几何 · 数学 2014-01-08 Marcos Dajczer , Theodoros Vlachos
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