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We consider the sub-Riemannian $3$-sphere $(\mathbb{S}^3,g_h)$ obtained by restriction of the Riemannian metric of constant curvature $1$ to the planar distribution orthogonal to the vertical Hopf vector field. It is known that…

Differential Geometry · Mathematics 2021-06-11 Ana Hurtado , César Rosales

For any compact surface $\Sigma$ with smooth, non-empty boundary, we construct a free boundary minimal immersion into a Euclidean Ball $\mathbb{B}^N$ where $N$ is controlled in terms of the topology of $\Sigma$. We obtain these as…

Differential Geometry · Mathematics 2020-04-23 Henrik Matthiesen , Romain Petrides

We consider the optimization problem of minimizing $\int_{\Omega}|\nabla u|^{p(x)}+ \lambda \chi_{\{u>0\}} dx$ in the class of functions $W^{1,p(\cdot)}(\Omega)$ with $u-\phi_0\in W_0^{1,p(\cdot)}(\Omega)$, for a given $\phi_0\geq 0$ and…

Analysis of PDEs · Mathematics 2009-02-19 Julián Fernández Bonder , Sandra Martínez , Noemi Wolanski

Consider an $(n+1)$-dimensional circular cone with opening angle $\alpha \in (0,\pi)$. Using a free-boundary adaptation of the classical calibration method, we prove that, for $n \geq 4$, there exists a threshold $\bar{\alpha}(n) \in…

Analysis of PDEs · Mathematics 2026-02-20 Giacomo Vianello

We prove an existence and uniqueness theorem about spherical helicoidal (in particular, rotational) surfaces with prescribed mean or Gaussian curvature in terms of a continuous function depending on the distance to its axis. As an…

Differential Geometry · Mathematics 2024-03-04 Ildefonso Castro , Ildefonso Castro-Infantes , Jesús Castro-Infantes

We consider area minimizing $m$-dimensional currents $\mathrm{mod}(p)$ in complete $C^2$ Riemannian manifolds $\Sigma$ of dimension $m+1$. For odd moduli we prove that, away from a closed rectifiable set of codimension $2$, the current in…

Analysis of PDEs · Mathematics 2025-10-01 Camillo De Lellis , Jonas Hirsch , Andrea Marchese , Luca Spolaor , Salvatore Stuvard

In Euclidean $3$-space, it is well known that the Sine-Gordon equation was considered in the nineteenth century in the course of investigations of surfaces of constant Gaussian curvature $K=-1$. Such a surface can be constructed from a…

Differential Geometry · Mathematics 2022-05-26 Hung-Lin Chiu , Hsiao-Fan Liu

We study free boundary minimal surfaces in the unit ball of low cohomogeneity. For each pair of positive integers $(m,n)$ such that $m, n >1$ and $m+n\geq 8$, we construct a free boundary minimal surface $\Sigma_{m, n} \subset B^{m+n}$(1)…

Differential Geometry · Mathematics 2016-01-29 Brian Freidin , Mamikon Gulian , Peter McGrath

This paper is a continuation of our recent work [54] concerning the capillary Minkowski problem. We propose, in this paper, a capillary $L_p$-Minkowski problem for $p\geq 1$, which seeks to find a capillary convex body with a prescribed…

Differential Geometry · Mathematics 2025-05-20 Xinqun Mei , Guofang Wang , Liangjun Weng

In this paper, we build up a min-max theory for minimal surfaces using sweepouts of surfaces of genus $g\geq 1$ and $m\geq 1$ ideal boundary components. We show that the width for the area functional can be achieved by a bubble tree limit…

Differential Geometry · Mathematics 2022-03-15 Yuchin Sun

In this paper, we prove that in any compact Riemannian manifold with smooth boundary, of dimension at least 3 and at most 7, there exist infinitely many almost properly embedded free boundary minimal hypersurfaces. This settles the free…

Differential Geometry · Mathematics 2021-09-28 Zhichao Wang

We prove $\varepsilon$-regularity theorems for varifolds with capillary boundary condition in a Riemannian manifold. These varifolds were first introduced by Kagaya-Tonegawa \cite{KaTo}. We establish a uniform first variation control for…

Differential Geometry · Mathematics 2024-06-03 Luigi De Masi , Nick Edelen , Carlo Gasparetto , Chao Li

In this paper we prove that a capillary minimal surface outside the unit ball in $\mathbb {R}^3$ with one embedded end and finite total curvature must be either part of the plane or part of the catenoid. We also prove that a capillary…

Differential Geometry · Mathematics 2020-04-23 Eungbeom Yeon

In this paper, by considering a special case of the spacelike mean curvature flow investigated by Li and Salavessa [6], we get a condition for the existence of smooth solutions of the Dirichlet problem for the minimal surface equation in…

Differential Geometry · Mathematics 2015-01-14 Jing Mao

This is the second paper in our sequence. Here, we apply our abstract Morse index formulation developed in the previous paper to study several optimization set-ups with constraints, including type I or/and type II considerations. A common…

Differential Geometry · Mathematics 2026-01-23 Hung Tran , Detang Zhou

Extending work of Kapouleas and Yang, for any integers $N \geq 2$, $k, \ell \geq 1$, and $m$ sufficiently large, we apply gluing methods to construct in the round $3$-sphere a closed embedded minimal surface that has genus $k\ell…

Differential Geometry · Mathematics 2020-07-28 David Wiygul

We consider non-orientable closed surfaces of minimum crosscap number in the $(p,q)$-lens space $L(p,q) \cong V_1 \cup_{\partial} V_2$, where $V_1$ and $V_2$ are solid tori. Bredon and Wood gave a formula for calculating the minimum…

Geometric Topology · Mathematics 2009-04-20 Miwa Iwakura

We study minimizing singular cones with free boundary associated with the capillarity problem. Precisely, we provide a stability criterion $\`a$ la Jerison-Savin for capillary hypersurfaces and show that, in dimensions up to $4$, minimizing…

Differential Geometry · Mathematics 2025-02-12 Alberto Pacati , Giorgio Tortone , Bozhidar Velichkov

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

We prove a gradient estimate for a class of capillary curvature equations in the half-space. As an application, we prove the existence of an even, smooth, strictly convex solution to the even capillary $L_p$-curvature problem for all…

Analysis of PDEs · Mathematics 2026-02-26 Yingxiang Hu , Mohammad N. Ivaki