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There exist rotationally symmetric translating solutions to mean curvature flow that can be written as a graph over Euclidean space. This result is well-known. Its proof uses the symmetry and techniques from partial differential equations.…

Differential Geometry · Mathematics 2025-05-23 Hakar Raji , Oliver C. Schnürer

We show that mean curvature flow translators may exhibit non-removable singularities at infinity, due to jump discontinuities in their asymptotic profiles, and that oscillation can persist so as to yield a continuum of subsequential limit…

Differential Geometry · Mathematics 2026-03-24 Eddygledson Souza Gama , Francisco Martín , Niels Martin Møller

We complete the classification of semigraphical translators for mean curvature flow in $\mathbb{R}^3$ that was initiated by Hoffman-Mart\'in-White. Specifically, we show that there is no solution to the translator equation on the upper…

Differential Geometry · Mathematics 2026-03-18 Francisco Martín , Mariel Sáez , Raphael Tsiamis , Brian White

We study surfaces with parallel normalized mean curvature vector field in Euclidean or Minkowski 4-space. On any such surface we introduce special isothermal parameters (canonical parameters) and describe these surfaces in terms of three…

Differential Geometry · Mathematics 2018-10-03 Georgi Ganchev , Velichka Milousheva

We consider the Laplace normal vector field of relatively normalized ruled surfaces with non-vanishing Gaussian curvature in the three-dimensional Euclidean space $\mathbb{R}^{3}$. We determine all ruled surfaces and all relative…

Differential Geometry · Mathematics 2016-03-16 Stylianos Stamatakis

Channel linear Weingarten surfaces in space forms are investigated in a Lie sphere geometric setting, which allows for a uniform treatment of different ambient geometries. We show that any channel linear Weingarten surface in a space form…

Differential Geometry · Mathematics 2024-07-31 Udo Hertrich-Jeromin , Mason Pember , Denis Polly

We study the geodesic flow on the normal line congruence of a minimal surface in ${\Bbb{R}}^3$ induced by the neutral K\"ahler metric on the space of oriented lines. The metric is lorentz with isolated degenerate points and the flow is…

Differential Geometry · Mathematics 2021-11-15 Brendan Guilfoyle , Wilhelm Klingenberg

We present a characterization for the rotational soliton for the curve shortening flow (CSF) on the revolution surfaces of $\mathbb{R}^3$. Furthermore, we describe the behavior of such curves by showing that the two ends of each open curve…

Differential Geometry · Mathematics 2023-10-05 Hiuri dos Reis , Benedito Leandro , Rafael Novais

The isotropic 3-space \mathbb{I}^{3} is a real affine 3-space endowed with the metric dx^{2}+dy^{2}. In this paper we describe Weingarten and linear Weingarten affine translation surfaces in \mathbb{I}^{3}. Further we classify the affine…

Differential Geometry · Mathematics 2017-04-07 Muhittin Evren Aydin , Mahmut Ergut

We study the one parameter family of genus 2 Riemann surfaces defined by the orbit of the L-shaped translation surface tiled by three squares under the Teichm\"uller geodesic flow. These surfaces are real algebraic curves with three real…

Geometric Topology · Mathematics 2012-07-19 Olivier Rodriguez

In this paper we adapt some techniques developed for K3 surfaces, to study the geometry of a family of projective varieties in $\Pl_K^2 \times \Pl_K^2 \times \Pl_K^2$ defined as the intersection of a form of degree $(2,2,2)$ and a form of…

Number Theory · Mathematics 2013-03-21 Jorge Pineiro

We show that any strictly mean convex translator of dimension $n\geq 3$ which admits a cylindrical estimate and a corresponding gradient estimate is rotationally symmetric. As a consequence, we deduce that any translating solution of the…

Differential Geometry · Mathematics 2016-06-01 Theodora Bourni , Mat Langford

We study asymptotic behavior of nonparametric hypersurfaces moving by $\alpha$ powers of Gauss curvature $\alpha > 1/n$. Our work generalizes the results of V. Oliker [Oli91] for $\alpha= 1$.

Analysis of PDEs · Mathematics 2016-06-07 Xiaolong Li , Kui Wang

In this paper we make an analysis of self-similar solutions for the mean curvature flow (MCF) by surfaces of revolution and ruled surfaces in $\mathbb{R}^{3}$. We prove that self-similar solutions of the MCF by non-cylindrival surfaces and…

Differential Geometry · Mathematics 2023-04-12 Benedito Leandro , Rafael Novais , Hiuri F. S. dos Reis

In this paper, we study a class of fully nonlinear contracting curvature flows of closed, uniformly convex hypersurfaces in the Euclidean space $\mathbb R^{n+1}$ with the normal speed $\Phi$ given by $r^\alpha F^\beta$ or $u^\alpha…

Differential Geometry · Mathematics 2021-04-14 Yusha Lv , Hejun Wang

We present an intrinsic Klotz-Osserman type theorem for surfaces in terms of Codazzi operators. Additionally, utilizing Simons' formula, we investigate surfaces with parallel mean curvature with non-positive Gaussian curvature in product…

Differential Geometry · Mathematics 2023-09-15 Felippe Guimarães

We prove existence results for entire graphical translators of the mean curvature flow (the so-called bowl solitons) on Cartan-Hadamard manifolds. We show that the asymptotic behaviour of entire solitons depends heavily on the curvature of…

Differential Geometry · Mathematics 2023-04-03 Jean-Baptiste Casteras , Esko Heinonen , Ilkka Holopainen , Jorge H. de Lira

Here, we focus on focal surfaces of a tubular surface in Euclidean 3-space E^3: Firstly, we give the tubular surfaces with respect to Frenet and Darboux frames. Then, we define focal surfaces of these tubular surfaces. We get some results…

Differential Geometry · Mathematics 2019-10-14 Sezgin Büyükkütük , İlim Kişi , Günay Öztürk

In this paper, we consider the contracting curvature flow of smooth closed surfaces in $3$-dimensional hyperbolic space and in $3$-dimensional sphere. In the hyperbolic case, we show that if the initial surface $M_0$ has positive scalar…

Differential Geometry · Mathematics 2020-09-29 Yingxiang Hu , Haizhong Li , Yong Wei , Tailong Zhou

Although the Transformer translation model (Vaswani et al., 2017) has achieved state-of-the-art performance in a variety of translation tasks, how to use document-level context to deal with discourse phenomena problematic for Transformer…

Computation and Language · Computer Science 2018-10-09 Jiacheng Zhang , Huanbo Luan , Maosong Sun , FeiFei Zhai , Jingfang Xu , Min Zhang , Yang Liu