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It is shown that the mass of an asymptotically flat manifold with a noncompact boundary can be computed in terms of limiting surface integrals involving the Einstein tensor of the interior metric and the Newton tensor attached to the second…

Differential Geometry · Mathematics 2019-03-27 Levi Lopes de Lima , Frederico Girão , Amilcar Montalbán

We show an improvement of Bray sharp mass-capacity inequality and Bray-Miao sharp upper bound of the capacity of the boundary in terms of its area, for three-dimensional, complete, one-ended asymptotically flat manifolds with compact,…

Differential Geometry · Mathematics 2022-08-16 Francesca Oronzio

We revisit the interplay between the mass, the center of mass and the large scale behavior of certain isoperimetric quotients in the setting of asymptotically flat $3$-manifolds (both without and with a non-compact boundary). In the…

Differential Geometry · Mathematics 2021-02-09 Sergio Almaraz , Levi Lopes de Lima

We derive new inequalities between the boundary capacity of an asymptotically flat 3-manifold with nonnegative scalar curvature and boundary quantities that relate to quasi-local mass; one relates to Brown--York mass and the other is new.…

Differential Geometry · Mathematics 2019-12-24 Christos Mantoulidis , Pengzi Miao , Luen-Fai Tam

We present a quasi-local version of the stability of the positive mass theorem. We work with the Brown--York quasi-local mass as it possesses positivity and rigidity properties, and therefore the stability of this rigidity statement can be…

Differential Geometry · Mathematics 2020-01-22 Aghil Alaee , Armando J. Cabrera Pacheco , Stephen McCormick

We prove a positive mass theorem for $n$-dimensional asymptotically flat manifolds with a non-compact boundary if either $3\leq n\leq 7$ or if $n\geq 3$ and the manifold is spin. This settles, for this class of manifolds, a question posed…

Differential Geometry · Mathematics 2014-07-03 Sergio Almaraz , Ezequiel Barbosa , Levi Lopes de Lima

We give some lower estimates of the ADM mass of an asymptotically flat (AF) Riemannian manifold without assuming that the scalar curvature of the manifold is nonnegative. Some sufficient conditions for an AF manifold to have nonnegative ADM…

Differential Geometry · Mathematics 2007-05-23 Yuguang Shi , Luen-fai Tam

We discuss some geometric problems related to the definitions of quasilocal mass proposed by Brown-York \cite{BYmass1} \cite{BYmass2} and Liu-Yau \cite{LY1} \cite{LY2}. Our discussion consists of three parts. In the first part, we propose a…

Differential Geometry · Mathematics 2015-05-13 Pengzi Miao , Yuguang Shi , Luen-Fai Tam

In this paper, we study the limiting behavior of the Brown-York mass and Hawking mass along nearly round surfaces at infinity of an asymptotically flat manifold. Nearly round surfaces can be defined in an intrinsic way. Our results show…

Differential Geometry · Mathematics 2013-03-25 Yuguang Shi , Guofang Wang , Jie Wu

Inspired by a formula of Stern that relates scalar curvature to harmonic functions, we evaluate the mass of an asymptotically flat $3$-manifold along faces and edges of a large coordinate cube. In terms of the mean curvature and dihedral…

Differential Geometry · Mathematics 2020-08-26 Pengzi Miao

We study connections among the ADM mass, positive harmonic functions tending to zero at infinity, and the capacity of the boundary of asymptotically flat $3$-manifolds with nonnegative scalar curvature. First we give new formulae that…

Differential Geometry · Mathematics 2023-06-12 Pengzi Miao

In this paper we introduce a mass for asymptotically flat manifolds by using the Gauss-Bonnet curvature. We first prove that the mass is well-defined and is a geometric invariant, if the Gauss-Bonnet curvature is integrable and the decay…

Differential Geometry · Mathematics 2013-04-30 Yuxin Ge , Guofang Wang , Jie Wu

In this paper, we show that for a sequence of orientable complete uniformly asymptotically flat $3$-manifolds $(M_i , g_i)$ with nonnegative scalar curvature and ADM mass $m(g_i)$ tending to zero, by subtracting some open subsets $Z_i$,…

Differential Geometry · Mathematics 2024-02-28 Conghan Dong

We show that the mass of an asymptotically hyperbolic manifold with a noncompact boundary can be evaluated via the Ricci tensor and the second fundamental form by using purely coordinates. The method is analog to Miao-Tam's approach to the…

Differential Geometry · Mathematics 2018-11-28 Xiaoxiang Chai

In this paper, we study the boundary behaviors of compact manifolds with nonnegative scalar curvature and with nonempty boundary. Using a general version of Positive Mass Theorem of Schoen-Yau and Witten, we prove the following theorem: For…

Differential Geometry · Mathematics 2007-05-23 Yuguang Shi , Luen-fai Tam

In this article, we study the geometry of compact quasi-Einstein manifolds with boundary. We establish sharp boundary estimates for compact quasi-Einstein manifolds with boundary that improve some previous results. Moreover, we obtain a…

Differential Geometry · Mathematics 2021-08-05 Rafael Diógenes , Tiago Gadelha , Ernani Ribeiro

We derive a positive mass theorem for asymptotically flat manifolds with boundary whose mean curvature satisfies a sharp estimate involving the conformal Green's function. The theorem also holds if the conformal Green's function is replaced…

Differential Geometry · Mathematics 2020-06-17 Sven Hirsch , Pengzi Miao

We define a mass-type invariant for asymptotically hyperbolic manifolds with a noncompact boundary which are modelled at infinity on the hyperbolic half-space and prove a sharp positive mass inequality in the spin case under suitable…

Differential Geometry · Mathematics 2019-01-04 Sergio Almaraz , Levi Lopes de Lima

We study Hawking mass and the Huisken's isoperimetric mass evaluated on surfaces with boundary. The convergence to an ADM mass defined on asymptotically flat manifold with a non-compact boundary are proved.

Differential Geometry · Mathematics 2018-11-16 Xiaoxiang Chai

In this article, we consider Einstein-type manifolds with boundary which generalizes important geometric equations, like static vacuum and static perfect fluid. We investigate some geometric inequalities for those manifolds. Then, we…

Differential Geometry · Mathematics 2025-01-24 Maria Andrade
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