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We prove that if the initial hypersurface of the mean curvature flow in spheres satisfies a sharp pinching condition, then the solution of the flow converges to a round point or a totally geodesic sphere. Our result improves the famous…

Differential Geometry · Mathematics 2015-06-16 Li Lei , Hongwei Xu

Blending schemes based on circles provide smooth `fair' interpolations between series of points. Here we demonstrate a simple, robust set of algorithms for performing circle blends for a range of cases. An arbitrary level of G-continuity…

Computational Geometry · Computer Science 2007-05-23 Chris Doran

We study the convergence and curvature blow up of La Nave and Tian's continuity method on a generalised Hirzebruch surface. We show that the Gromov-Hausdorff convergence is similar to that of the Kahler-Ricci flow and obtain curvature…

Differential Geometry · Mathematics 2022-10-11 Hosea Wondo

A comparison theorem for the isoperimetric profile on the universal cover of surfaces evolving by normalised Ricci flow is proven. For any initial metric, a model comparison is constructed that initially lies below the profile of the…

Differential Geometry · Mathematics 2014-04-24 Paul Bryan

We argue that the complete Klebanov-Witten flow solution must be described by a Calabi-Yau metric on the conifold, interpolating between the orbifold at infinity and the cone over T^(1,1) in the interior. We show that the complete flow…

High Energy Physics - Theory · Physics 2009-11-10 Nick Halmagyi , Krzysztof Pilch , Christian Romelsberger , Nicholas P. Warner

This paper investigates a generalized hyperbolic circle packing (including circles, horocycles or hypercycles) with respect to the total geodesic curvatures on the surface with boundary. We mainly focus on the existence and rigidity of…

Geometric Topology · Mathematics 2023-11-20 Guangming Hu , Yi Qi , Yu Sun , Puchun Zhou

We first define Pseudo-Calabi flow, as {equation*} {{aligned}{{\partial \varphi}\over {\partial t}}&= -f(\varphi), \triangle_varphi f(\varphi) &= S(\varphi) - \ul S.{aligned}. \end{equation*} Then we prove the well-posedness of this flow…

Differential Geometry · Mathematics 2013-03-12 Xiuxiong Chen , Kai Zheng

Inspired by recent work of S. K. Donaldson on constant scalar curvature metrics on toric complex surfaces, we study obstructions to the extension of the Calabi flow on a polarized toric variety. Under some technical assumptions, we prove…

Differential Geometry · Mathematics 2011-01-05 Hongnian Huang

Thurston's triangulation conjecture asserts that every hyperbolic 3-manifold admits a geometric decomposition into ideal hyperbolic tetrahedra, a result proven only for certain special 3-manifolds. This paper presents combinatorial Ricci…

Geometric Topology · Mathematics 2025-02-11 Feng Ke , Ge Huabin

In this paper we investigate the convergence for the mean curvature flow of closed submanifolds with arbitrary codimension in space forms. Particularly, we prove that the mean curvature flow deforms a closed submanifold satisfying a…

Differential Geometry · Mathematics 2011-05-31 Kefeng Liu , Hongwei Xu , Fei Ye , Entao Zhao

A circle pattern is a configuration of circles in the plane whose combinatorics is given by a planar graph G such that to each vertex of G corresponds a circle. If two vertices are connected by an edge in G, the corresponding circles…

Metric Geometry · Mathematics 2009-06-09 Ulrike Bücking

We give an overview of the existence and regularity results for curvature flows and how these flows can be used to solve some problems in geometry and physics.

Differential Geometry · Mathematics 2010-07-22 Claus Gerhardt

The goal of this paper is to study Yamabe flow on a complete Riemannian manifold of bounded geometry with possibly infinite volume. In the case of infinite volume, standard volume normalization of the Yamabe flow fails and the flow may not…

Differential Geometry · Mathematics 2022-10-17 Bruno Caldeira , Luiz Hartmann , Boris Vertman

In this paper, we prove a sharp convergence theorem for the mean curvature flow of arbitrary codimension in spheres which improves Baker's convergence theorem. In particular, we obtain a new differentiable sphere theorem for submanifolds in…

Differential Geometry · Mathematics 2021-03-16 Dong Pu

In this article, we will use the harmonic mean curvature flow to prove a new class of Alexandrov-Fenchel type inequalities for strictly convex hypersurfaces in hyperbolic space in terms of total curvature, which is the integral of Gaussian…

Differential Geometry · Mathematics 2019-03-15 Ben Andrews , Yingxiang Hu , Haizhong Li

This is an expository article describing the conformalized mean curvature flow, originally introduced by Kazhdan, Solomon, and Ben-Chen. We are interested in applying mean curvature flow to surface parametrizations. We discuss our own…

Computational Geometry · Computer Science 2020-06-16 Ka Wai Wong

We study an analogue of the Calabi flow in the non-K\"ahler setting for compact Hermitian manifolds with vanishing first Bott-Chern class. We prove a priori estimates for the evolving metric along the flow given a uniform bound on the Chern…

Differential Geometry · Mathematics 2022-02-03 Xi Sisi Shen

In this paper, we prove some convergence theorems for the mean curvature flow of closed submanifolds in the unit sphere $\mathbb{S}^{n+d}$ under integral curvature conditions. As a consequence, we obtain several differentiable sphere…

Differential Geometry · Mathematics 2012-04-03 Kefeng Liu , Hongwei Xu , Entao Zhao

There is a common description of different intrinsic geometric flows in two dimensions using Toda field equations associated to continual Lie algebras that incorporate the deformation variable t into their system. The Ricci flow admits zero…

High Energy Physics - Theory · Physics 2009-11-11 I. Bakas

In this paper we introduce a new geometric flow with rotational invariance and prove that, under this kind of flow, an arbitrary smooth closed contractible hypersurface in the Euclidean space Rn+1 (n, 1) converges to Sn in the C1-topology…

Analysis of PDEs · Mathematics 2011-09-06 De-Xing Kong , Qiang Ru
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