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Related papers: Prescribing the curvature to Killing Graphs

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Let $(M,g)$ be a complete three dimensional Riemannian manifold with boundary $\partial M$. Given smooth functions $K(x)>0$ and $c(x)$ defined on $M$ and $\partial M$, respectively, it is natural to ask whether there exist metrics conformal…

Differential Geometry · Mathematics 2008-10-29 Lei Zhang

We study constant mean curvature graphs in the Riemannian 3-dimensional Heisenberg spaces ${\cal H}={\cal H}(\tau)$. Each such ${\cal H}$ is the total space of a Riemannian submersion onto the Euclidean plane $\mathbb{R}^2$ with geodesic…

Differential Geometry · Mathematics 2008-03-03 Luis J. Alias , Marcos Dajczer , Harold Rosenberg

This paper is devoted to the prescribed scalar curvature under minimal boundary mean curvature on the standard four dimensional half sphere. Using topological methods from the theory of critical points at infinity, we prove some existence…

Analysis of PDEs · Mathematics 2007-05-23 Hichem Chtioui , Khalil El Mehdi

Assuming that there exists a translating soliton $u_\infty$ with speed $C$ in a domain $\Omega$ and with prescribed contact angle on $\partial\Omega$, we prove that a graphical solution to the mean curvature flow with the same prescribed…

Differential Geometry · Mathematics 2023-02-07 Jean-Baptiste Casteras , Esko Heinonen , Ilkka Holopainen , Jorge H. de Lira

Woess \cite{Woess98} introduced a curvature notion on the set of edges of a planar graph, called $\Psi$-curvature in our paper, which is stable under the planar duality. We study geometric and combinatorial properties for the class of…

Combinatorics · Mathematics 2019-09-18 Yohji Akama , Bobo Hua , Yanhui Su , Lili Wang

We study two-dimensional Finsler metrics of constant flag curvature and show that such Finsler metrics that admit a Killing field can be written in a normal form that depends on two arbitrary functions of one variable. Furthermore, we find…

Differential Geometry · Mathematics 2017-04-05 R. L. Bryant , L. Huang , X. Mo

This article studies the mean curvature flow of Lagrangian submanifolds. In particular, we prove the following global existence and convergence theorem: if the potential function of a Lagrangian graph in T^{2n} is convex, then the flow…

Differential Geometry · Mathematics 2016-09-07 Knut Smoczyk , Mu-Tao Wang

We study hypersurfaces with fractional mean curvature in N-dimensional Euclidean space. These hypersurfaces are critical points of the fractional perimeter under a volume constraint. We use local inversion arguments to prove existence of…

Analysis of PDEs · Mathematics 2018-04-06 Ignace Aristide Minlend , Alassane Niang , El Hadji Abdoulaye Thiam

We consider the anisotropic mean curvature flow of entire Lipschitz graphs. We prove existence and uniqueness of expanding self-similar solutions which are asymptotic to a prescribed cone, and we characterize the long time behavior of…

Analysis of PDEs · Mathematics 2021-05-14 Annalisa Cesaroni , Heiko Kröner , Matteo Novaga

In this paper, we consider the mean curvature flow with driving force on fixed extreme points in the plane. We give a general local existence and uniqueness result of this problem with $C^2$ initial curve. For a special family of initial…

Dynamical Systems · Mathematics 2017-04-03 Longjie Zhang

For undirected graphs, the Ricci curvature introduced by Lin-Lu-Yau has been widely studied from various perspectives, especially geometric analysis. In the present paper, we discuss generalization problem of their Ricci curvature for…

Differential Geometry · Mathematics 2020-07-07 Ryunosuke Ozawa , Yohei Sakurai , Taiki Yamada

We study the set of curvature functions which a given compact manifold with boundary can possess. First, we prove that the sign demanded by the Gauss-Bonnet Theorem is a necessary and sufficient condition for a given function to be the…

Differential Geometry · Mathematics 2024-09-04 Tiarlos Cruz , Almir Silva Santos , Feliciano Vitório

Suppose that a closed $1$-rectifiable set $\Gamma_0\subset \mathbb R^2$ of finite $1$-dimensional Hausdorff measure and a vector field $u$ in a dimensionally critical Sobolev space are given. It is proved that, starting from $\Gamma_0$,…

Analysis of PDEs · Mathematics 2024-11-28 Yuning Liu , Yoshihiro Tonegawa

Prescribing $\sigma_k$ curvature equations are fully nonlinear generalizations of the prescribing Gaussian or scalar curvature equations. Given a positive function $K$ to be prescribed on the 4-dimensional round sphere. We obtain asymptotic…

Differential Geometry · Mathematics 2009-11-24 S. -Y. Alice Chang , Zheng-Chao Han , Paul Yang

In covariant metric theories of coupled gravity-matter systems the necessary and sufficient conditions ensuring the existence of a Killing vector field are investigated. It is shown that the symmetries of initial data sets are preserved by…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Istvan Racz

Graph generative model evaluation necessitates understanding differences between graphs on the distributional level. This entails being able to harness salient attributes of graphs in an efficient manner. Curvature constitutes one such…

Machine Learning · Computer Science 2023-10-27 Joshua Southern , Jeremy Wayland , Michael Bronstein , Bastian Rieck

We prove distance bounds for graphs possessing positive Bakry-\'Emery curvature apart from an exceptional set, where the curvature is allowed to be non-positive. If the set of non-positively curved vertices is finite, then the graph admits…

Differential Geometry · Mathematics 2019-03-26 Shiping Liu , Florentin Münch , Norbert Peyerimhoff , Christian Rose

We discuss the property of the number density of a fluid of particles living in a curved surface without boundaries to be constant in the thermodynamic limit. In particular we find a sufficient condition for the density to be constant along…

Statistical Mechanics · Physics 2012-11-20 Riccardo Fantoni

In this article, we construct complete embedded constant mean curvature surfaces in $\mb{R}^3$ with freely prescribed genus and any number of ends greater than or equal to four. Heuristically, the surfaces are obtained by resolving finitely…

Differential Geometry · Mathematics 2023-09-18 Stephen. J. Kleene

We prove that on a closed surface, for any $c>0$, our min-max theory for prescribing mean curvature produces a solution given by a curve of constant geodesic curvature $c$ which is almost embedded, except for finitely many points, at which…

Differential Geometry · Mathematics 2019-01-29 Xin Zhou , Jonathan J. Zhu