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The null Penrose inequality, i.e. the Penrose inequality in terms of the Bondi energy, is studied by introducing a funtional on surfaces and studying its properties along a null hypersurface $\Omega$ extending to past null infinity. We…

General Relativity and Quantum Cosmology · Physics 2016-05-25 Marc Mars , Alberto Soria

The Riemannian Penrose inequality is a fundamental result in mathematical relativity. It has been a long-standing conjecture of G. Huisken that an analogous result should hold in the context of extrinsic geometry. In this paper, we resolve…

Differential Geometry · Mathematics 2024-11-05 Michael Eichmair , Thomas Koerber

We consider complete asymptotically flat Riemannian manifolds that are the graphs of smooth functions over $\mathbb R^n$. By recognizing the scalar curvature of such manifolds as a divergence, we express the ADM mass as an integral of the…

Differential Geometry · Mathematics 2010-10-21 Mau-Kwong George Lam

We prove the spacetime positive mass theorem in dimensions less than eight. This theorem states that for any asymptotically flat initial data set satisfying the dominant energy condition, the ADM energy-momentum vector $(E,P)$ of the…

Differential Geometry · Mathematics 2015-12-24 Michael Eichmair , Lan-Hsuan Huang , Dan A. Lee , Richard Schoen

In this paper we revisit Brill's proof of positive mass for three-dimensional, time-symmetric, axisymmetric initial data and generalise his argument in various directions. In 3+1 dimensions, we include an apparent horizon in the initial…

General Relativity and Quantum Cosmology · Physics 2009-10-07 G. W. Gibbons , G. Holzegel

We prove that Penrose limits of metrics with arbitrary singularities of power-law type show a universal leading u^{-2}-behaviour near the singularity provided that the dominant energy condition is satisfied and not saturated. For generic…

High Energy Physics - Theory · Physics 2009-11-10 Matthias Blau , Monica Borunda , Martin O'Loughlin , George Papadopoulos

We prove the existence of asymptotically hyperbolic solutions to the vacuum Einstein constraint equations with a marginally outer trapped boundary of positive mean curvature, using the constant mean curvature conformal method. As an…

General Relativity and Quantum Cosmology · Physics 2023-02-16 Marcus Khuri , Jarosław Kopiński

An earlier construction by the authors of sequences of globally regular, asymptotically flat initial data for the Einstein vacuum equations containing trapped surfaces for large values of the parameter is extended, from the time symmetric…

General Relativity and Quantum Cosmology · Physics 2010-04-06 R. Beig , N. Ó Murchadha

We study a Penrose-Fife phase transition model coupled with homogeneous Neumann boundary conditions. Improving previous results, we show that the initial value problem for this model admits a unique solution under weak conditions on the…

Analysis of PDEs · Mathematics 2011-08-09 Giulio Schimperna , Antonio Segatti , Sergey Zelik

Consider a compact, orientable, three dimensional Riemannian manifold with boundary with nonnegative scalar curvature. Suppose its boundary is the disjoint union of two pieces: the horizon boundary and the outer boundary, where the horizon…

Differential Geometry · Mathematics 2009-09-05 Pengzi Miao

The rigidity statement of the positive mass theorem asserts that an asymptotically flat initial data set for the Einstein equations with zero ADM mass, and satisfying the dominant energy condition, must arise from an embedding into…

Differential Geometry · Mathematics 2021-01-19 Edward Bryden , Marcus Khuri , Christina Sormani

We establish the spacetime Penrose inequality in spherical symmetry in spacetime dimensions $n+1\geq3$ with charge and cosmological constant from the initial data perspective. We also show that this result extends to the Gauss-Bonnet theory…

General Relativity and Quantum Cosmology · Physics 2025-05-20 Hari K. Kunduri , Juan Margalef-Bentabol , Sarah Muth

This article is the sequel to our previous paper [LS] dealing with the near-equality case of the Positive Mass Theorem. We study the near-equality case of the Penrose Inequality for the class of complete asymptotically flat rotationally…

Differential Geometry · Mathematics 2015-05-30 Dan A. Lee , Christina Sormani

We establish analogues of the Hawking and Penrose singularity theorems based on (a) averaged energy conditions with exponential damping; (b) conditions on local stress-energy averages inspired by the Quantum Energy Inequalities satisfied by…

General Relativity and Quantum Cosmology · Physics 2013-02-01 Christopher J. Fewster , Gregory J. Galloway

A spacetime satisfies the non-timelike boundary version of the Penrose property if the timelike future of any point on $\mathcal{I}^-$ contains the whole of $\mathcal{I}^+$. This property was first discussed for asymptotically flat…

General Relativity and Quantum Cosmology · Physics 2023-11-21 Peter Cameron

By considering suitable axially symmetric slices on the Kruskal spacetime, we construct counterexamples to a recent version of the Penrose inequality in terms of so-called generalized apparent horizons.

General Relativity and Quantum Cosmology · Physics 2015-05-14 Alberto Carrasco , Marc Mars

In this paper, we show how to reduce the Penrose conjecture to the known Riemannian Penrose inequality case whenever certain geometrically motivated systems of equations can be solved. Whether or not these special systems of equations have…

Differential Geometry · Mathematics 2021-01-19 Hubert L. Bray , Marcus A. Khuri

We prove that the Riemannian Penrose Inequality holds for Asymptotically Flat $3$-manifolds with nonnegative scalar curvature and connected horizon boundary, provided the optimal decay assumptions are met, which result in the $\mathrm{ADM}$…

Differential Geometry · Mathematics 2024-11-21 Luca Benatti , Mattia Fogagnolo , Lorenzo Mazzieri

We propose a geometric inequality for two-dimensional spacelike surfaces in the Schwarzschild spacetime. This inequality implies the Penrose inequality for collapsing dust shells in general relativity, as proposed by Penrose and Gibbons. We…

Mathematical Physics · Physics 2015-06-15 Simon Brendle , Mu-Tao Wang

Based on the $\mu$-bubble method we are able to prove the following version of Riemannian Penrose inequality without horizon: if $g$ is a complete metric on $\mathbb R^3\setminus\{O\}$ with nonnegative scalar curvature, which is…

Differential Geometry · Mathematics 2023-04-05 Jintian Zhu