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We study immersed, connected, umbilic hypersurfaces in the Heisenberg group $H_{n}$ with $n$ $\geq $ $2.$ We show that such a hypersurface, if closed, must be rotationally invariant up to a Heisenberg translation. Moreover, we prove that,…

微分几何 · 数学 2015-12-21 Jih-Hsin Cheng , Hung-Lin Chiu , Jenn-Fang Hwang , Paul Yang

Given a quasi-median graph $X$, the crossing graph $\Delta X$ and the contact graph $\Gamma X$ are natural hyperbolic models of $X$. In this article, we show that the asymptotic translation length in $\Delta X$ or $\Gamma X$ of an isometry…

群论 · 数学 2022-09-15 Anthony Genevois

We investigate self-similar solutions to the inverse mean curvature flow in Euclidean space. In the case of one dimensional planar solitons, we explicitly classify all homothetic solitons and translators. Generalizing Andrews' theorem that…

微分几何 · 数学 2016-09-07 Gregory Drugan , Hojoo Lee , Glen Wheeler

Let $\xi$ be an analytic vector field in $\mathbb{R}^3$ with an isolated singularity at the origin and having only hyperbolic singular points after a reduction of singularities $\pi:M\to\mathbb{R}^3$. The union of the images by $\pi$ of the…

动力系统 · 数学 2022-07-06 Clementa Alonso-González , Fernando Sanz Sánchez

We prove that if $\Sigma$ is a closed surface of genus at least 3 and $G$ is a split real semisimple Lie group of rank at least $3$ acting faithfully by isometries on a symmetric space $N$, then there exists a Hitchin representation…

微分几何 · 数学 2025-01-31 Nathaniel Sagman , Peter Smillie

In this paper we discuss existence, uniqueness and some properties of a class of solitons to the anisotropic mean curvature flow, i.e., graphical translators, either in the plane or under an assumption of cylindrical symmetry on the…

偏微分方程分析 · 数学 2021-07-27 Annalisa Cesaroni , Heiko Kroener , Matteo Novaga

Let $\Delta$ be a hyperbolic triangle with a fixed area $\varphi$. We prove that for all but countably many $\varphi$, generic choices of $\Delta$ have the property that the group generated by the $\pi$--rotations about the midpoints of the…

We study translating solitons for the mean curvature flow, $\Sigma^2\subseteq\mathbb{R}^3$ which are contained in slabs, and are of finite genus and finite entropy. As a first consequence of our results, we can enumerate connected…

微分几何 · 数学 2026-01-26 Eddygledson Souza Gama , Francisco Martín , Niels Martin Møller

In this paper, we study the rigidity results of complete graphical translating hypersurfaces when the translating direction is not in the graphical direction. We proved that any entire graphical translating surface in the translating…

微分几何 · 数学 2022-10-10 John Man Shun Ma , Yuan Shyong Ooi , Juncheol Pyo

There exist four non-equivalent types of the translation hypersurfaces in the 4-dimensional isotropic space $\mathbb{I}^{4}$ generated by translating the curves lying in perpendicular $k-$planes $\left(k=2,3\right)$, due to its absolute…

微分几何 · 数学 2017-11-27 Muhittin Evren Aydin , Alper Osman Ogrenmis

In this paper we prove existence and classification results for translating solitons defined as initial conditions for higher order mean curvature flows that are invariant by translations in warped product manifolds $\mathbb{P}\times_\chi…

微分几何 · 数学 2026-04-22 Jorge Herbert Soares de Lira , Rafael Rocha de Farias

In this paper we present a new family of non-compact properly embedded, self-shrinking, asymptotically conical, positive mean curvature ends $\Sigma^n\subseteq\mathbb{R}^{n+1}$ that are hypersurfaces of revolution with circular boundaries.…

微分几何 · 数学 2019-03-13 Stephen J. Kleene , Niels Martin Moller

We provide a complete classification of groups that can be realized as isometry groups of a translation surface $M$ with non-finitely generated fundamental group and no planar ends. Furthermore, we demonstrate that if $S$ has no…

The flow in a fixed direction on a translation surface S determines a decomposition of S into closed invariant sets, each of which is either periodic or minimal. We study this decomposition for translation surfaces in the hyperelliptic…

动力系统 · 数学 2013-02-15 Kathryn Lindsey

In this paper we classify all singular irreducible symplectic surfaces, i.e., compact, connected complex surfaces with canonical singularities that have a holomorphic symplectic form $\sigma$ on the smooth locus, and for which every finite…

代数几何 · 数学 2026-03-23 Alice Garbagnati , Matteo Penegini , Arvid Perego

We describe a construction of complete embedded self-translating surfaces under mean curvature flow by desingularizing the intersection of a finite family of grim reapers in general position.

微分几何 · 数学 2012-03-29 Xuan Hien Nguyen

We classify the surfaces translating under the flows by sub-affine-critical powers of the Gauss curvature. This, in particular, lists all translating solitons possibly model Type II singularities for convex closed solutions in all positive…

微分几何 · 数学 2024-07-22 Beomjun Choi , Kyeongsu Choi , Soojung Kim

In this paper, we study evolved surfaces over convex planar domains which are evolving by the minimal surface flow $$u_{t}= div\left(\frac{Du}{\sqrt{1+|Du|^2}}\right)-H(x,Du).$$ Here, we specify the angle of contact of the evolved surface…

微分几何 · 数学 2023-04-14 Li Ma , Yuxin Pan

We address the question of determining which mapping class groups of infinite-type surfaces admit nonelementary continuous actions on hyperbolic spaces. More precisely, let $\Sigma$ be a connected, orientable surface of infinite type with…

几何拓扑 · 数学 2020-05-19 Camille Horbez , Yulan Qing , Kasra Rafi

Given a unit vector $\textbf{v}\in\mathbb{R}^3$ and $\lambda\in\mathbb{R}$, a translating $\lambda$-soliton is a surface in $\mathbb{R}^3$ whose mean curvature $H$ satisfies $H=\langle N,\textbf{v}\rangle+\lambda,\ |\textbf{v}|=1$, where…

微分几何 · 数学 2023-01-18 Antonio Bueno , Rafael López , Irene Ortiz