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We construct a countable collection of one-parameter families of non-rotational minimal annuli with free boundary in geodesic balls of hyperbolic 3-space. Every surface within a given family shares a common prismatic symmetry group, and…

Differential Geometry · Mathematics 2025-02-28 Alberto Cerezo

We construct an infinite family of non-planar free boundary disks of non-positive Gaussian curvature in the unit ball of $\mathbb{R}^3$.

Differential Geometry · Mathematics 2025-11-05 Alberto Cerezo

We consider $\Sigma$ an embedded free boundary minimal annulus in a geodesic ball in the round hemisphere $\mathbb{S}^3_+$ or in the hyperbolic space $\mathbb{H}^3$. Under the hypothesis of invariance due to an antipodal map on the geodesic…

Differential Geometry · Mathematics 2025-12-30 César Lima

We rigorously establish the existence of many free boundary minimal annuli with boundary in a geodesic sphere of $\mathbb{S}^3$. These arise as compact subdomains of a one-parameter family of complete minimal immersions of $\mathbb{R}…

Differential Geometry · Mathematics 2025-11-17 Manuel Ruivo de Oliveira

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 a family of compact free boundary minimal annuli immersed in the unit ball $\mathbb{B}^3$ of $\mathbb{R}^3$, the first such examples other than the critical catenoid. This solves a problem formulated by Nitsche in 1985. These…

Differential Geometry · Mathematics 2022-11-09 Isabel Fernandez , Laurent Hauswirth , Pablo Mira

We prove the existence of free boundary minimal annuli inside suitably convex subsets of three-dimensional Riemannian manifolds with nonnegative Ricci curvature $-$ including strictly convex domains of the Euclidean space $\mathbb{R}^3$.

Differential Geometry · Mathematics 2013-12-23 Davi Maximo , Ivaldo Nunes , Graham Smith

In this paper, we prove that every strictly convex 3-ball with nonnegative Ricci-curvature contains at least 3 embedded free-boundary minimal 2-disks for any generic metric, and at least 2 solutions even without genericity assumption. Our…

Differential Geometry · Mathematics 2023-07-06 Robert Haslhofer , Daniel Ketover

Using the linearized doubling methodology we carry out a PDE gluing construction of a discrete family of non-rotational properly immersed free boundary minimal annuli in the Euclidean unit 3-ball. The surfaces we construct resemble…

Differential Geometry · Mathematics 2022-12-20 Nikolaos Kapouleas , Peter McGrath

In this paper, we work with the existence and uniqueness of free boundary constant mean curvature hypersurfaces in rotational domains. These are domains whose boundary is generated by a rotation of a graph. Under some conditions on the…

Differential Geometry · Mathematics 2024-07-18 Allan Freitas , Márcio Santos , J. Sindeaux

We employ min-max techniques to show that the unit ball in $\mathbb{R}^3$ contains embedded free boundary minimal surfaces with connected boundary and arbitrary genus.

Differential Geometry · Mathematics 2022-10-25 Alessandro Carlotto , Giada Franz , Mario B. Schulz

In this paper we use the notion of stability for free boundary surfaces with constant higher order mean curvature to obtain rigidity results for $H_2$-surfaces with free boundary of a geodesic ball of a simply connected $3$-dimensional…

Differential Geometry · Mathematics 2023-05-03 Leonardo Damasceno , Maria Fernanda Elbert

We adapt Sklyanin's $K$-matrix formalism to the sinh-Gordon equation, and prove that all free boundary constant mean curvature (CMC) annuli in the unit ball in $\mathbb{R}^3$ are of finite type.

Differential Geometry · Mathematics 2021-08-11 Martin Kilian , Graham Smith

In this article, we study a free boundary isometric embedding problem for abstract Riemannian two-manifolds with the topology of the disc. Under the assumption of positive Gauss curvature and geodesic curvature of the boundary being equal…

Differential Geometry · Mathematics 2022-02-07 Thomas Koerber

We construct compact hyperbolic 3-manifolds with totally geodesic boundary, such that the closed 3-pseudomanifolds obtained by coning off the boundary components are negatively curved and contain locally convex subspaces whose fundamental…

Geometric Topology · Mathematics 2026-02-11 Jason Manning , Lorenzo Ruffoni

Let $C$ be a strictly convex domain in a $3$-dimensional Riemannian manifold with sectional curvature bounded above by a constant and let $\Sigma$ be a constant mean curvature surface with free boundary in $C$. We provide a pinching…

Differential Geometry · Mathematics 2021-07-29 Sung-Hong Min , Keomkyo Seo

For any $n\in \mathbb{N}$, $n\geq 2$, we construct a real analytic, one-parameter family of compact embedded CMC annuli with free boundary in the unit ball $\mathbb{B}^3$ of $\mathbb{R}^3$ with a prismatic symmetry group of order $4n$.…

Differential Geometry · Mathematics 2022-12-16 Alberto Cerezo , Isabel Fernandez , Pablo Mira

In this work, we consider $M=(\mathbb{B}^3_r,\bar{g})$ as the Euclidean three-ball with radius $r$ equipped with the metric $\bar{g}=e^{2h}\left\langle , \right\rangle$ conformal to the Euclidean metric. We show that if a free boundary CMC…

Differential Geometry · Mathematics 2020-06-05 Maria Andrade , Ezequiel Barbosa , Edno Pereira

Let $(M, \partial M)$ be a compact 3-manifold with boundary, which admits a convex co-compact hyperbolic metric. We consider the hyperbolic metrics on $M$ such that the boundary is smooth and strictly convex. We show that the induced…

Differential Geometry · Mathematics 2015-06-26 Jean-Marc Schlenker

In the Euclidean unit three-ball, we construct compact, embedded, two-sided free boundary minimal surfaces with connected boundary and prescribed high genus, by a gluing construction tripling the equatorial disc. Aside from the equatorial…

Differential Geometry · Mathematics 2017-12-29 Nicolaos Kapouleas , David Wiygul
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