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Let $f$ be an isolated singularity at the origin of $\mathbb{C}^n$. One of many invariants that can be associated with $f$ is its {\L}ojasiewicz exponent $\mathcal{L}_0 (f)$, which measures, to some extent, the topology of $f$. We give, for…

Algebraic Geometry · Mathematics 2020-10-14 S. Brzostowski , T. Krasiński , G. Oleksik

Let $C_{\theta}$ be a circular cone in Euclidean space $\mathbb{R}^{3}$,which apex is the origin and apex angle of the cone is $\theta\in \left(\pi/3, \pi\right)$. Let $M_\theta$ be the class of compact convex domains in Euclidean space…

Dynamical Systems · Mathematics 2024-10-29 Yi Yang

In this paper, we study the curve shortening flow (CSF) on Riemann surfaces. We generalize Huisken's comparison function to Riemann surfaces and surfaces with conic singularities. We reprove the Gage-Hamilton-Grayson theorem on surfaces. We…

Differential Geometry · Mathematics 2022-05-09 Biao Ma

We develop a bubble-compactness theory for embedded CMC hypersurfaces with bounded index and area inside closed Riemannian manifolds in low dimensions. In particular we show that convergence always occurs with multiplicity one, which…

Differential Geometry · Mathematics 2021-02-10 Theodora Bourni , Ben Sharp , Giuseppe Tinaglia

In this paper, we prove that, up to similarity, there are only two minimal hypersurfaces in $\mathbb{R}^{n+2}$ that are asymptotic to a Simons cone, i.e. the minimal cone over the minimal hypersurface $\sqrt{\frac pn}\mathbb{S}^p\times…

Differential Geometry · Mathematics 2015-04-08 Laurent Mazet

For constant mean curvature surfaces of class $C^2$ immersed inside Sasakian sub-Riemannian 3-manifolds we obtain a formula for the second derivative of the area which involves horizontal analytical terms, the Webster scalar curvature of…

Differential Geometry · Mathematics 2010-07-27 César Rosales

We investigate 3-dimensional globally hyperbolic AdS manifolds containing "particles", i.e., cone singularities of angles less than $2\pi$ along a time-like graph $\Gamma$. To each such space we associate a graph and a finite family of…

Differential Geometry · Mathematics 2013-02-25 Thierry Barbot , Francesco Bonsante , Jean-Marc Schlenker

We search for Ricci flat, K\"{a}hler geometries which are asymptotic to the cone whose base is the space T^{11} by working out covariantly constant spinor equations. The metrics we find are singular in the interior and introducing parallel…

High Energy Physics - Theory · Physics 2009-11-07 Ali Kaya

We study fine structural properties related to the interior regularity of $m$-dimensional area minimizing currents mod$(q)$ in arbitrary codimension. We show: (i) the set of points where at least one tangent cone is translation invariant…

Analysis of PDEs · Mathematics 2024-06-28 Camillo De Lellis , Paul Minter , Anna Skorobogatova

Given a closed orientable Euclidean cone 3-manifold C with cone angles less than or equal to pi, and which is not almost product, we describe the space of constant curvature cone structures on C with cone angles less than pi. We establish a…

Geometric Topology · Mathematics 2014-11-11 Joan Porti , Hartmut Weiss

We derive a singular version of the Sphere Covering Inequality which was recently introduced in [42], suitable for treating singular Liouville-type problems with superharmonic weights. As an application we deduce new uniqueness results for…

Analysis of PDEs · Mathematics 2018-10-11 Daniele Bartolucci , Changfeng Gui , Aleks Jevnikar , Amir Moradifam

In this paper we study the Sasakian geometry on S^3-bundles over a Riemann surface of genus g>0 with emphasis on extremal Sasaki metrics. We prove the existence of a countably infinite number of inequivalent contact structures on the total…

Differential Geometry · Mathematics 2015-01-14 Charles P. Boyer , Christina W. Tønnesen-Friedman

We show that to every maximal surface with conelike singularities in Lorentz-Minkowski space $\mathbb{L}^3$ that can be locally represented as the graph of a smooth function, there exists a corresponding timelike minimal surface in…

Differential Geometry · Mathematics 2019-09-18 Aryaman Patel

The $L_{p}$ Gaussian Minkowski problem for $C$-pseudo-cones is studied in this paper, and the existence and uniqueness results are established. This extends our previous work on the Minkowski problem for $C$-pseudo-cones with respect to the…

Metric Geometry · Mathematics 2025-03-04 Junjie Shan , Wenchuan Hu

Let $C$ be an $m$-dimensional cone immersed in $\mathbb{R}^{n+m}$. In this paper, we show that if $F:M^m \rightarrow \mathbb{R}^{n+m}$ is a properly immersed mean curvature flow self-shrinker which is smoothly asymptotic to $C$, then it is…

Differential Geometry · Mathematics 2023-06-21 Ilyas Khan

The Gaussian surface area measure and the Gaussian cone measure for $C$-pseudo-cones are introduced and their corresponding Gaussian Minkowski problem and Gaussian log-Minkowski problem are proposed, respectively. The existence and…

Metric Geometry · Mathematics 2025-04-10 Junjie Shan , Wenchuan Hu , Wenxue Xu

Here we consider an integral equation describing a fixed number of scalar particles which interact not through boson exchange but directly along light cones, similarly as in bound state equations such as the Bethe-Salpeter equation. The…

Mathematical Physics · Physics 2020-03-20 Matthias Lienert , Markus Nöth

We discuss the validity of Minkowski integral identities for hypersurfaces inside a cone, intersecting the boundary of the cone orthogonally. In doing so we correct a formula provided in [3]. Then we study rigidity results for constant mean…

Analysis of PDEs · Mathematics 2025-04-18 Filomena Pacella , Giulio Tralli

We show that every continuous valuation on a locally convex, locally convex-compact, sober topological cone $\mathfrak{C}$ has a barycenter. This barycenter is unique, and the barycenter map $\beta$ is continuous, hence is the structure map…

General Topology · Mathematics 2024-10-16 Jean Goubault-Larrecq , Xiaodong Jia

We prove that any vector field on a three-dimensional compact manifold can be approximated in the C1-topology by one which is singular hyperbolic or by one which exhibits a homoclinic tangency associated to a regular hyperbolic periodic…

Dynamical Systems · Mathematics 2018-09-14 Sylvain Crovisier , Dawei Yang