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This is the first of two articles in which we investigate the geometry of free boundary and capillary minimal surfaces in balls $B_R\subset\mathbb{S}^3$. In this article, we extend our previous half-space intersection properties to warped…

Differential Geometry · Mathematics 2025-12-29 Keaton Naff , Jonathan J. Zhu

In this article, we construct complete embedded constant mean curvature surfaces in $\mb{R}^3$ with freely prescribed genus and any number of ends greater than or equal to four. Heuristically, the surfaces are obtained by resolving finitely…

Differential Geometry · Mathematics 2023-09-18 Stephen. J. Kleene

We first consider a uniqueness problem for embedded free boundary minimal annuli in the three-dimensional Euclidean unit half-ball. Then, we obtain symmetry properties for compact embedded free boundary minimal surfaces in the unit ball.…

Differential Geometry · Mathematics 2023-01-13 Dong-Hwi Seo

We employ equivariant variational methods to construct new examples of nonplanar free boundary minimal discs in ellipsoids. We also prove that every ellipsoid contains at least three distinct embedded free boundary minimal annuli with…

Differential Geometry · Mathematics 2024-09-04 Mario B. Schulz

In this paper, we consider compact free boundary constant mean curvature surfaces immersed in a mean convex body of the Euclidean space or in the unit sphere. We prove that the Morse index is bounded from below by a linear function of the…

Differential Geometry · Mathematics 2020-03-18 Marcos P. Cavalcante , Darlan F. de Oliveira

In this note, we observe that if $B$ is a ball in a Euclidean space with dimension $n$, $n\geq3$, then a stable CMC hypersurface $\Sigma$ with free boundary in $B$ satisfies \[ nA\leq L\leq nA\left( \frac{1+\sqrt{1+4(n+1)H^2}}{2} \right)\,,…

Differential Geometry · Mathematics 2016-07-04 Ezequiel Barbosa

We prove that, given $|H|<1$, a generic simple closed curve embedded in the asymptotic boundary of $\mathbb{H}^3$ (with respect to the supremum metric) bounds more than one complete surface embedded in $\mathbb{H}^3$ which has constant mean…

Differential Geometry · Mathematics 2016-02-08 Cagri Haciyusufoglu

We prove index estimates for closed and free boundary CMC surfaces in certain $3$-dimensional submanifolds of some Euclidean space. When the mean curvature is large enough we are able to prove that the index of a CMC surface in an arbitrary…

Differential Geometry · Mathematics 2019-01-30 Nicolau S. Aiex , Han Hong

On a finite-volume hyperbolic $3$-manifold, we establish an upper bound on the area of closed embedded surfaces with constant mean curvature at least one, depending on the mean curvature and the genus bounds. This area bound implies…

Differential Geometry · Mathematics 2025-09-15 Ruojing Jiang

For any H in [0,1), we construct complete, non-proper, stable, simply-connected surfaces with constant mean curvature H embedded in hyperbolic 3-space.

Differential Geometry · Mathematics 2017-03-07 Baris Coskunuzer , William H. Meeks , Giuseppe Tinaglia

We prove that strictly mean convex toroids contain infinitely many (geometrically distinct) embedded free boundary minimal M\"obius bands as well as infinitely many embedded free boundary minimal annuli. The surfaces in both families are…

Differential Geometry · Mathematics 2024-10-10 Mario B. Schulz

With the developments of the last decade on complete constant mean curvature 1 (CMC 1) surfaces in the hyperbolic 3-space $H^3$, many examples of such surfaces are now known. However, most of the known examples have regular ends. (An end is…

Differential Geometry · Mathematics 2008-05-27 Wayne Rossman , Masaaki Umehara , Kotaro Yamada

We study deformations of free boundary constant mean curvature (CMC) hypersurfaces whose Jacobi operator is degenerate due to symmetries of the ambient space. The value of the mean curvature and the ambient metric are allowed to vary…

Differential Geometry · Mathematics 2017-12-29 Renato G. Bettiol , Paolo Piccione , Bianca Santoro

We prove that the space of smooth Riemannian metrics on the three-ball with non-negative Ricci curvature and strictly convex boundary is path connected; and, moreover, that the associated moduli space (i.e., modulo orientation-preserving…

Differential Geometry · Mathematics 2016-10-19 Antonio Ache , Davi Maximo , Haotian Wu

CMC-1 trinoids (i.e. constant mean curvature one immersed surface with three regular embedded ends) in hyperbolic 3-space H^3 are irreducible generically, and the irreducible ones have been classified. However, the reducible case has not…

Differential Geometry · Mathematics 2011-08-18 Shoichi Fujimori , Yu Kawakami , Masatoshi Kokubu , Wayne Rossman , Masaaki Umehara , Kotaro Yamada

We extend Struwe's result (Acta Math., 1988) on the existence of free boundary constant mean curvature disks to almost every prescribed boundary contact angle in $(0, \pi)$. Specifically, let $\Sigma$ be a surface in $\mathbb{R}^3$…

Differential Geometry · Mathematics 2023-10-13 Da Rong Cheng

In this paper we prove that a properly embedded constant mean curvature surface in $\mathbb{H}^2\times\mathbb{R}$ which has finite topology and stays at a finite distance from a vertical geodesic line is invariant by rotation around a…

Differential Geometry · Mathematics 2013-11-12 Laurent Mazet

Let $(M, \partial M)$ be a compact 3-manifold with boundary which admits a complete, convex co-compact hyperbolic metric. For each hyperbolic metric $g$ on $M$ such that $\dr M$ is smooth and strictly convex, the induced metric on $\dr M$…

Geometric Topology · Mathematics 2007-05-23 Jean-Marc Schlenker

We show that a minimal disk satisfying the free boundary condition in a constant curvature ball of any dimension is totally geodesic. We weaken the condition to parallel mean curvature vector in which case we show that the disk lies in a…

Differential Geometry · Mathematics 2018-11-28 Ailana Fraser , Richard Schoen

In the present paper we give a geometric proof for the existence of cylinders with constant mean curvature $H>H(X)$ in certain simply connected homogeneous three-manifolds $X$ diffeomorphic to $\mathbb{R}^3$, which always admit a Lie group…

Differential Geometry · Mathematics 2018-02-13 Miroslav Vržina