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We use variational methods to construct a free boundary minimal surface in the three-dimensional unit ball with genus one, two boundary components and prismatic symmetry. Key ingredients are an extension of the equivariant min-max theory to…

微分几何 · 数学 2024-09-20 Giada Franz , Daniel Ketover , Mario B. Schulz

We study properly embedded and immersed p(pseudohermitian)-minimal surfaces in the 3-dimensional Heisenberg group. From the recent work of Cheng, Hwang, Malchiodi, and Yang, we learn that such surfaces must be ruled surfaces. There are two…

微分几何 · 数学 2008-04-14 Jih-Hsin Cheng , Jenn-Fang Hwang

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

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

Let N be a closed irreducible 3-manifold and assume N is not a graph manifold. We improve for all but finitely many S^1-bundles M over N the adjunction inequality for the minimal complexity of embedded surfaces. This allows us to completely…

几何拓扑 · 数学 2018-12-24 Stefan Friedl , Stefano Vidussi

In this paper we present in a topological way the construction of the orientable surface with only one end and infinite genus, called \emph{The Infinite Loch Ness Monster}. In fact, we introduce a flat and hyperbolic construction of this…

几何拓扑 · 数学 2017-01-26 John A. Arredondo , Camilo Ramírez Maluendas

We consider the asymptotic behavior of properly embedded minimal surfaces in the product of the hyperbolic plane with the line, taking into account the fact that there is more than one natural compactification of this space. This provides a…

微分几何 · 数学 2015-06-10 Benoit Kloeckner , Rafe Mazzeo

Let $X$ be a quadratic vector field with a center whose generic orbits are algebraic curves of genus one. To each $X$ we associate an elliptic surface (a smooth complex compact surface which is a genus one fibration). We give the list of…

动力系统 · 数学 2008-01-29 Sebastien Gautier

We discover a family of closed, embedded minimal surfaces in the three-dimensional round sphere which includes new examples with low genus. The existence proof relies on an equivariant min-max procedure applied to a novel sweepout which is…

微分几何 · 数学 2025-07-31 Mario B. Schulz , David Wiygul

For an embedded singly periodic minimal surface M with genus bigger than or equal to 4 and annular ends, some weak symmetry hypotheses imply its congruence with one of the Hoffman-Wohlgemuth examples. We give a very geometrical proof of…

微分几何 · 数学 2008-06-12 Valerio Ramos-Batista , Plinio Simoes

we construct a properly embedded minimal surface in the flat product R^2*S^1 which is quasi-periodic but is not periodic.

微分几何 · 数学 2007-05-23 Laurent Mazet , Martin Traizet

For all $m \in \mathbb N - \{0\}$, we prove the existence of a one dimensional family of genus $m$, constant mean curvature (equal to 1) surfaces which are complete, immersed in $\mathbb R^3$ and have two Delaunay ends asymptotic to…

微分几何 · 数学 2010-10-26 Frank Pacard , Harold Rosenberg

We prove the existence of nonperiodic, properly embedded minimal surfaces in $\mathbb{R}^2\times\mathbb{S}^1$ with genus zero, infinitely many ends and one limit end (in particular, they have infinite total curvature).

微分几何 · 数学 2007-05-23 Laurent Mazet , M. Magdalena Rodriguez , Martin Traizet

We investigate the close relationship between minimal surfaces in Euclidean 3-space and constant mean curvature 1 surfaces in hyperbolic 3-space. Just as in the case of minimal surfaces in Euclidean 3-space, the only complete connected…

微分几何 · 数学 2008-04-29 Wayne Rossman , Katsunori Sato

We describe all possible self-similar motions of immersed hypersurfaces in Euclidean space under the mean curvature flow and derive the corresponding hypersurface equations. Then we present a new two-parameter family of immersed helicoidal…

微分几何 · 数学 2015-03-19 Hoeskuldur P. Halldorsson

We consider the hyperelliptic handlebody group on a closed surface of genus $g$. This is the subgroup of the mapping class group on a closed surface of genus $g$ consisting of isotopy classes of homeomorphisms on the surface that commute…

几何拓扑 · 数学 2017-02-22 Susumu Hirose , Eiko Kin

In this article, we construct two one-parameter families of properly embedded minimal surfaces in a three-dimensional Lie group $\widetilde{E(2)}$, which is the universal covering of the group of rigid motions of Euclidean plane endowed…

微分几何 · 数学 2022-03-31 Yiming Zang

For any m > 0, we construct properly embedded minimal surfaces in H^2 x R with genus zero, infinitely many vertical planar ends and m limit ends. We also provide examples with an infinite countable number of limit ends. All these examples…

微分几何 · 数学 2011-12-21 M. Magdalena Rodríguez

A Seifert surface F for a knot K is free if the complement of F is a handlebody (i.e., has free fundamental group). The free genus of K is the minimum genus among all free Seifert surfaces for K. In this paper we show that there exist…

几何拓扑 · 数学 2007-05-23 Mark Brittenham

This paper is the fourth in a series where we describe the space of all embedded minimal surfaces of fixed genus in a fixed (but arbitrary) closed 3-manifold. The key is to understand the structure of an embedded minimal disk in a ball in…

偏微分方程分析 · 数学 2007-05-23 Tobias H. Colding , William P. Minicozzi