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In this paper we study the moduli space of properly Alexandrov-embedded, minimal annuli in $\mathbb{H}^2 \times \mathbb{R}$ with horizontal ends. We say that the ends are horizontal when they are graphs of $\mathcal{C}^{2, \alpha}$…

Differential Geometry · Mathematics 2018-12-12 Leonor Ferrer , Francisco Martin , Rafe Mazzeo , M. Magdalena Rodriguez

We study minimal annuli in $\mathbb{S}^2 \times \mathbb{R}$ of finite type by relating them to harmonic maps $\mathbb{C} \to \mathbb{S}^2$ of finite type. We rephrase an iteration by Pinkall-Sterling in terms of polynomial Killing fields.…

Differential Geometry · Mathematics 2014-11-07 L. Hauswirth , M. Kilian , M. U. Schmidt

We construct a one-parameter family of properly embedded minimal annuli in the Heisenberg group Nil_3 endowed with a left-invariant Riemannian metric. These annuli are not rotationally invariant. This family gives a vertical half-space…

Differential Geometry · Mathematics 2010-03-25 Benoit Daniel , Laurent Hauswirth

For each $k\geq 3$, we construct a 1-parameter family of complete properly Alexandrov-embedded minimal surfaces in the Riemannian product space $\mathbb{H}^2\times\mathbb{R}$ with genus $1$ and $k$ embedded ends asymptotic to vertical…

Differential Geometry · Mathematics 2024-07-23 Jesús Castro-Infantes , José M. Manzano

This note provides some new perspectives and calculations regarding an interesting known family of minimal surfaces in $\mathbb{H}^2 \times \mathbb{R}$. The surfaces in this family are the catenoids, parabolic catenoids and tall rectangles.…

Differential Geometry · Mathematics 2019-01-15 Leonor Ferrer , Francisco Martín , Rafe Mazzeo , Magdalena Rodríguez

In this paper we develop the theory of properly immersed minimal surfaces in the quotient space $\mathbb H^2\times\mathbb R/G,$ where $G$ is a subgroup of isometries generated by a vertical translation and a horizontal isometry in $\mathbb…

Differential Geometry · Mathematics 2013-05-22 Laurent Hauswirth , Ana Menezes

We construct the first examples of complete, properly embedded minimal surfaces in $\mathbb{H}^2 \times \mathbb{R}$ with finite total curvature and positive genus. These are constructed by gluing copies of horizontal catenoids or other…

Differential Geometry · Mathematics 2014-11-11 Francisco Martin , Rafe Mazzeo , M. Magdalena Rodriguez

We study constant mean curvature 1/2 surfaces in H2xR that admit a compactification of the mean curvature operator. We show that a particular family of complete entire graphs over H2 admits a structure of infinite dimensional manifold with…

Differential Geometry · Mathematics 2014-06-26 Sébastien Cartier , Laurent Hauswirth

We provide the full classification of algebraic embeddings of $\mathbb{C}^*$ into $\mathbb{C}^2$ satisfying certain regularity condition, which conjecturally holds for all algebraic maps from $\mathbb{C}^*$ into $\mathbb{C}^2$. The…

Algebraic Geometry · Mathematics 2007-08-14 Maciej Borodzik , Henryk Zoladek

We construct complete, embedded minimal annuli asymptotic to vertical planes in the Riemannian 3-manifold PSL. The boundary of these annuli consists of 4 vertical lines at infinity. They are constructed by taking the limit of a sequence of…

Differential Geometry · Mathematics 2021-09-28 Pascal Collin , Laurent Hauswirth , Minh Hoang Nguyen

It is well-known that in any codimension a simply connected Euclidean minimal surface has an associated one-parameter family of minimal isometric deformations. In this paper, we show that this is just a special case of the associated family…

Differential Geometry · Mathematics 2015-02-17 Marcos Dajczer , Theodoros Vlachos

We study the existence problem for tilted unduloids in $\mathbb{H}^2\times\mathbb{R}$. These are singly periodic annuli with constant mean curvature $H>1/2$ in $\mathbb{H}^2\times\mathbb{R}$, and the periodicity of these surfaces is with…

Differential Geometry · Mathematics 2017-10-03 Miroslav Vržina

We study proper holomorphic maps of annuli in complex Euclidean spaces, that is, domains with $U(n)$ as the automorphism group. By the Hartogs phenomenon and a result of Forstneri\v{c}, such maps are always rational and extend to proper…

Complex Variables · Mathematics 2026-02-06 Abdullah Al Helal , Jiri Lebl , Achinta Kumar Nandi

We construct three kinds of complete embedded minimal surfaces in $\Bbb H^2\times \Bbb R$. The first is a simply connected, singly periodic, infinite total curvature surface. The second is an annular finite total curvature surface. These…

Differential Geometry · Mathematics 2011-01-27 Juncheol Pyo

We show the existence of a $2$-parameter family of properly Alexandrov-embedded surfaces with constant mean curvature $0\leq H\leq\frac{1}{2}$ in ${\mathbb{H}^2\times\mathbb{R}}$. They are symmetric with respect to a horizontal slice and a…

Differential Geometry · Mathematics 2024-07-23 Jesús Castro-Infantes , José M. Manzano , Magdalena Rodríguez

We prove an Alexandrov type theorem for a quotient space of $\mathbb H^2\times \mathbb R$. More precisely we classify the compact embedded surfaces with constant mean curvature in the quotient of $\mathbb H^2\times \mathbb R$ by a subgroup…

Differential Geometry · Mathematics 2016-01-20 Ana Menezes

We construct two one-parameter families of minimal properly embedded surfaces in the Lie group Sol3 using a Weierstrass-type representation. These surfaces are not invariant by a one-parameter group of ambient isometries. The first one can…

Differential Geometry · Mathematics 2016-01-20 Christophe Desmonts

Motivated by the large ammount of results obtained for minimal and positive constant mean curvature surfaces in several ambient spaces, the aim of this paper is to obtain half-space theorems for properly immersed surfaces in $\mathbb{R}^3$…

Differential Geometry · Mathematics 2019-01-15 Antonio Bueno

We organize minimal annuli in a slab based on the winding number of the circles that foliate them and study the area of minimal annuli with given winding number. Specifically, we deduce some results regarding the convexity of the length…

Differential Geometry · Mathematics 2025-09-30 Elham Matinpour

We show that there exists a metric with positive scalar curvature on S2xS1 and a sequence of embedded minimal cylinders that converges to a minimal lamination that, in a neighborhood of a strictly stable 2-sphere, is smooth except at two…

Differential Geometry · Mathematics 2008-03-06 Maria Calle , Darren Lee
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