中文
相关论文

相关论文: On C$^2$-smooth Surfaces of Constant Width

200 篇论文

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

We prove there exists a compact embedded minimal surface in a complete finite volume hyperbolic $3$-manifold $\mathcal{N}$. We also obtain a least area, incompressible, properly embedded, finite topology, $2$-sided surface. We prove a…

微分几何 · 数学 2014-06-26 Pascal Collin , Laurent Hauswirth , Laurent Mazet , Harold Rosenberg

In this paper, we give smoe characterizations of relatively normal-slant helices and isophotic curves on a smooth surface immersed in Euclidean 3-space with respect to their position vevtor. We also introduce the methods for generating an…

综合数学 · 数学 2021-04-28 Akhilesh Yadav , Buddhadev Pal

In this study, we define a family of ruled surfaces in the Euclidean 3-space E^3 and called similar ruled surfaces. We obtain some properties of these special surfaces and we show that developable ruled surfaces form a family of similar…

微分几何 · 数学 2014-06-26 Mehmet Önder

In homogenous space Sol we study compact surfaces with constant mean curvature and with non-empty boundary. We ask how the geometry of the boundary curve imposes restrictions over all possible configurations that the surface can adopt. We…

微分几何 · 数学 2009-09-19 Rafael López

We consider surfaces embedded in a 3D contact sub-Riemannian manifold and the problem of the finiteness of the induced distance (i.e., the infimum of the length of horizontal curves that belong to the surface). Recently it has been proved…

微分几何 · 数学 2024-07-15 Eugenio Bellini , Ugo Boscain

In this paper, helicoidal flat surfaces in the $3$-dimensional sphere $\mathbb{S}^3$ are considered. A complete classification of such surfaces is given in terms of their first and second fundamental forms and by linear solutions of the…

微分几何 · 数学 2016-01-20 Fernando Manfio , João Paulo dos Santos

In Sol$_3$ space there are three uniparametric groups of isometries. In this work we study constant mean curvature surfaces invariant by one of these groups. We analyze the geometric properties of these surfaces by means of their computer…

微分几何 · 数学 2011-12-13 Rafael López

In hyperbolic 3-space $\mathbb{H}^3$ surfaces of constant mean curvature $H$ come in three types, corresponding to the cases $0 \leq H < 1$, $H = 1$, $H > 1$. Via the Lawson correspondence the latter two cases correspond to constant mean…

微分几何 · 数学 2015-05-29 Josef F. Dorfmeister , Jun-ichi Inoguchi , Shimpei Kobayashi

We study rotational surfaces with constant Minkowski Gaussian curvature and rotational surfaces with constant Minkowski mean curvature in a $3$-dimensional normed space with rotationally symmetric norm. We have a generalization of the…

微分几何 · 数学 2021-12-03 Makoto Sakaki

The contribution of this paper is twofold. First, we generalize the definition of discrete isothermic surfaces. Compared with the previous ones, it covers more discrete surfaces, e.g., the associated families of discrete isothermic minimal…

微分几何 · 数学 2020-03-17 Tim Hoffmann , Shimpei Kobayashi , Zi Ye

We construct a weakly complete flat surface in hyperbolic 3-space having a pair of hyperbolic Gauss maps both of whose images are contained in an arbitrarily given open disc in the ideal boundary of H^3. This construction is accomplished as…

微分几何 · 数学 2012-05-23 Francisco Martin , Masaaki Umehara , Kotaro Yamada

We prove that any constant mean curvature embedded torus in the three dimensional sphere is axially symmetric, and use this to give a complete classification of such surfaces for any given value of the mean curvature.

微分几何 · 数学 2012-06-28 Ben Andrews , Haizhong Li

In this paper, we study the special curves and ruled surfaces on helix hypersurface whose tangent planes make a constant angle with a fixed direction in Euclidean n-space Besides, we observe some special ruled surfaces in and give…

微分几何 · 数学 2012-04-13 Yusuf Yayli , Evren Ziplar

We establish a general `gluing theorem', which states roughly that if two nondegenerate constant mean curvature surfaces are juxtaposed, so that their tangent planes are parallel and very close to one another, but oppositely oriented, then…

微分几何 · 数学 2007-05-23 Rafe Mazzeo , Frank Pacard , Daniel Pollack

We demonstrate the existence of smooth three-dimensional vector fields where the cross product between the vector field and its curl is balanced by the gradient of a smooth function, with toroidal level sets that are not invariant under…

偏微分方程分析 · 数学 2025-06-02 Naoki Sato , Michio Yamada

Embedded minimal surfaces of finite total curvature in $\mathbb{R}^3$ are reasonably well understood: From far away, they look like intersecting catenoids and planes, suitably desingularized. We consider the larger class of harmonic…

微分几何 · 数学 2014-07-11 Peter Connor , Kevin Li , Matthias Weber

A triangulated piecewise-linear minimal surface in Euclidean 3-space defined using a variational characterization is critical for area amongst all continuous piecewise-linear variations with compact support that preserve the simplicial…

微分几何 · 数学 2008-04-25 Wayne Rossman

We construct a new class of complete constant mean curvature surfaces in R^3. These are geometrically different than the surfaces constructed by Kapouleas' gluing technique. These are obtained by piecing together half-Delaunay surfaces to…

微分几何 · 数学 2007-05-23 Rafe Mazzeo , Frank Pacard

We prove that any properly oriented $C^{2,1}$ isometric immersion of a positively curved Riemannian surface M into Euclidean 3-space is uniquely determined, up to a rigid motion, by its values on any curve segment in M. A generalization of…

微分几何 · 数学 2019-12-02 Mohammad Ghomi , Joel Spruck