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相关论文: Two quasi-local masses evaluated on surfaces with …

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We mainly investigate some properties of quasiconformal mappings between smooth 2-dimensional surfaces with boundary in the Euclidean space, satisfying certain partial differential equations (inequalities) concerning Laplacian, and in…

复变函数 · 数学 2012-02-21 David Kalaj , Miodrag Mateljevic

We give a brief review of the definition of the Wang-Yau quasilocal mass and discuss the evaluation of which on surfaces of unit size at null infinity of an axi-symmetric spacetime in Bondi-van der Burg-Metzner coordinates.

广义相对论与量子宇宙学 · 物理学 2019-06-26 Po-Ning Chen , Mu-Tao Wang , Ye-Kai Wang , Shing-Tung Yau

The goal of this article is to study compact quasi-Einstein manifolds with boundary. We provide boundary estimates for compact quasi-Einstein manifolds simi\-lar to previous results obtained for static and $V$-static spaces. In addition, we…

微分几何 · 数学 2020-05-12 Rafael Diógenes , Tiago Gadelha

We study the limit of quasilocal mass defined in [4] and [5] for a family of spacelike 2-surfaces in spacetime. In particular, we show the limit coincides with the ADM mass at spatial infinity. The limit for coordinate spheres of a boosted…

微分几何 · 数学 2015-05-13 Mu-Tao Wang , Shing-Tung Yau

A new inequality for a nonlinear surface layer integral is proved for minimizers of causal variational principles. This inequality is applied to obtain a new proof of the positive mass theorem with volume constraint. Next, a positive mass…

数学物理 · 物理学 2025-03-03 Felix Finster , Niky Kamran

It is proved the following theorem, if $w$ is a quasiconformal harmonic mappings between two Riemann surfaces with smooth boundary and aproximate analytic metric, then $w$ is a quasi-isometry with respect to Euclidean metric.

复变函数 · 数学 2011-08-03 David Kalaj

The goal of this paper is to establish the existence of a foliation of the asymptotic region of an asymptotically flat manifold with nonzero mass by surfaces which are critical points of the Willmore functional subject to an area…

微分几何 · 数学 2009-03-09 Tobias Lamm , Jan Metzger , Felix Schulze

Area-constrained critical surfaces for the Hawking quasi-local energy ("Hawking surfaces") provide a natural setting for that energy: they enjoy positivity and rigidity properties. We construct large-scale foliations at infinity by Hawking…

微分几何 · 数学 2025-12-01 Alejandro Peñuela Diaz

We extend the idea and techniques in \cite{Miao} to study variational effect of the boundary geometry on the ADM mass of an asymptotically flat manifold. We show that, for a Lipschitz asymptotically flat metric extension of a bounded…

数学物理 · 物理学 2007-05-23 Pengzi Miao

We show that the quotient associated to a quasi-Hamiltonian space has a symplectic structure even when 1 is not a regular value of the momentum map: it is a disjoint union of symplectic manifolds of possibly different dimensions, which…

辛几何 · 数学 2017-08-23 Florent Schaffhauser

We prove the rigidity of positive mass theorem for asymptotically hyperbolic manifolds. Namely, if the mass equality holds, then the manifold is isometric to hyperbolic space. The result was previously proven for spin manifolds or under…

微分几何 · 数学 2019-11-27 Lan-Hsuan Huang , Hyun Chul Jang , Daniel Martin

We use the notion of intrinsic flat distance to address the almost rigidity of the positive mass theorem for asymptotically hyperbolic manifolds. In particular, we prove that a sequence of spherically symmetric asymptotically hyperbolic…

微分几何 · 数学 2018-05-14 A Sakovich , C Sormani

We provide conditions under which a Riemann surface $X$ is the asymptotic boundary of a convex co-compact hyperbolic manifold, homeomorphic to a handlebody, of negative renormalized volume. We prove that this is the case when there are on…

微分几何 · 数学 2025-08-18 Tommaso Cremaschi , Viola Giovannini , Jean-Marc Schlenker

In this work we obtain the limit of the Hawking energy of a large class of foliations along general null hypersurfaces $\Omega$ satisfying a weak notion of asymptotic flatness. The foliations are not required to be either geodesic or…

广义相对论与量子宇宙学 · 物理学 2015-09-23 Marc Mars , Alberto Soria

We study a class of non-smooth asymptotically flat manifolds on which metrics fails to be $C^1$ across a hypersurface $\Sigma$. We first give an approximation scheme to mollify the metric, then we prove that the Positive Mass Theorem still…

数学物理 · 物理学 2016-09-07 Pengzi Miao

In this paper we use the theory of mean-stable surfaces (stable minimal surfaces included) to explore the static Einstein-Maxwell space-time. We first prove that the zero set of the lapse function must be contained in the horizon boundary.…

微分几何 · 数学 2022-12-21 Benedito Leandro , Fernando Coutinho

We obtain some estimates on the area of the boundary and on the volume of a certain free boundary hypersurface $\Sigma$ with nonpositive Yamabe invariant in a Riemannian $n$-manifold with bounds for the scalar curvature and the mean…

微分几何 · 数学 2014-06-18 A. Barros , C. Tiarlos Cruz

For manifolds with a distinguished asymptotically flat end, we prove a density theorem which produces harmonic asymptotics on the distinguished end, while allowing for points of incompleteness (or negative scalar curvature) away from this…

微分几何 · 数学 2022-11-14 Dan A. Lee , Martin Lesourd , Ryan Unger

We review notions of mass of asymptotically locally Anti-de Sitter three-dimensional spacetimes, and apply them to some known solutions. For two-dimensional general relativistic initial data sets the mass is not invariant under asymptotic…

广义相对论与量子宇宙学 · 物理学 2024-07-23 Piotr T. Chruściel , Raphaela Wutte

For an admissible class of smooth compact initial data sets with boundary, we prove a comparison theorem between the Wang/Liu-Yau quasi-local mass of the boundary and the Hawking mass of strictly minimizing hulls in the Jang graphs of the…

微分几何 · 数学 2021-09-27 Aghil Alaee , Martin Lesourd , Shing-Tung Yau