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Related papers: A Jang Equation Approach to the Penrose Inequality

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In [5], Bray and Khuri proposed coupling the generalized Jang equation to several different auxiliary equations. The solutions to these coupled systems would then imply the Penrose inequality. One of these involves coupling the generalized…

General Relativity and Quantum Cosmology · Physics 2025-01-31 Jaroslaw S. Jaracz

The Jang equation in the spherically symmetric case reduces to a first order equation. This permits an easy analysis of the role apparent horizons play in the (non)existence of solutions. We demonstrate that the proposed derivation of the…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Edward Malec , Niall Ó Murchadha

A recent result of Jaracz has established nonexistence of global solutions to the coupled generalized Jang equation and zero divergence system which satisfy the asymptotic conditions needed to prove the Penrose conjecture by identifying a…

General Relativity and Quantum Cosmology · Physics 2026-04-21 Hollis Williams

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 formulate and prove the stability statement associated with the spacetime Penrose inequality for $n$-dimensional spherically symmetric, asymptotically flat initial data satisfying the dominant energy condition. We assume that the ADM…

General Relativity and Quantum Cosmology · Physics 2022-12-29 Emily Schaal

The purpose of this letter is to point out an argument which may ultimately lead to a rigorous proof of the Penrose inequality in the general case. The argument is a variation of Geroch's original proposal for a proof of the positive energy…

General Relativity and Quantum Cosmology · Physics 2009-11-07 J Frauendiener

For asymptotically flat initial data of Einstein's equations satisfying an energy condition, we show that the Penrose inequality holds between the ADM mass and the area of an outermost apparent horizon, if the data are restricted suitably.…

General Relativity and Quantum Cosmology · Physics 2009-11-07 Edward Malec , Marc Mars , Walter Simon

We establish mass lower bounds of Penrose-type in the setting of $3$-dimensional initial data sets for the Einstein equations satisfying the dominant energy condition, which are either asymptotically flat or asymptotically hyperboloidal.…

Differential Geometry · Mathematics 2025-04-16 Brian Allen , Edward Bryden , Demetre Kazaras , Marcus Khuri

We establish a lower bound on the total mass of the time slices of (n + 1)-dimensional asymptotically flat standard static spacetimes under the timelike convergence condition. The inequality can be viewed equivalently as a Minkowski-type…

General Relativity and Quantum Cosmology · Physics 2026-02-11 Brian Harvie

We establish a Penrose-like inequality for general (not necessarily time-symmetric) initial data sets of the Einstein-Maxwell equations, which satisfy the dominant energy condition. More precisely, it is shown that the ADM energy is bounded…

General Relativity and Quantum Cosmology · Physics 2015-06-16 Marcus A. Khuri

We establish a Penrose-Like Inequality for general (not necessarily time symmetric) initial data sets of the Einstein equations which satisfy the dominant energy condition. More precisely, it is shown that the ADM energy is bounded below by…

Differential Geometry · Mathematics 2013-10-14 Marcus A. Khuri

The conformal flow of metrics [2] has been used to successfully establish a special case of the Penrose inequality, which yields a lower bound for the total mass of a spacetime in terms of horizon area. Here we show how to adapt the…

General Relativity and Quantum Cosmology · Physics 2018-06-28 Qing Han , Marcus Khuri

We summarize results on the Penrose inequality bounding the ADM-mass or the Bondi mass in terms of the area of an outermost apparent horizon for asymptotically flat initial data of Einstein's equations. We first recall the proof, due to…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Edward Malec , Marc Mars , Walter Simon

Motivated by the fluid/gravity correspondence, we consider the Penrose inequality in the framework of fluid dynamics. In general relativity, the Penrose inequality relates the mass and the entropy associated with a gravitational background.…

High Energy Physics - Theory · Physics 2011-03-18 Yaron Oz , Michael Rabinovich

The classical Penrose inequality, a relation between the ADM mass and the area of any cross section of the black hole event horizon, was introduced as a test of the weak cosmic censorship conjecture: if it fails, the trapped surface is not…

General Relativity and Quantum Cosmology · Physics 2025-11-27 Eduardo Hafemann , Eleni-Alexandra Kontou

In general relativity, the Penrose inequality relates the mass and the entropy associated with a gravitational background. If the inequality is violated by an initial Cauchy data, it suggests a creation of a naked singularity, thus…

High Energy Physics - Theory · Physics 2015-05-28 Igor Itkin , Yaron Oz

We show that in the conformally flat case the Penrose inequality is satisfied for the Schwarzschild initial data with a small addition of the axially symmetric traceless exterior curvature. In this class the inequality is saturated only for…

General Relativity and Quantum Cosmology · Physics 2019-12-09 Jarosław Kopiński , Jacek Tafel

Penrose's original heuristic for his eponymous spacetime inequality -- a conjectured lower bound on the ADM mass in terms of the area of a horizon cross-section -- relies on the black hole final state conjecture. In this paper we isolate a…

General Relativity and Quantum Cosmology · Physics 2026-05-19 Ahmed Ellithy

We prove the equality case of the Penrose inequality in all dimensions for asymptotically flat hypersurfaces. It was recently proven by G. Lam that the Penrose inequality holds for asymptotically flat graphical hypersurfaces in Euclidean…

Differential Geometry · Mathematics 2013-05-03 Lan-Hsuan Huang , Damin Wu

We prove the spacetime Penrose inequality for asymptotically flat $2(n+1)$-dimensional initial data sets for the Einstein equations, which are invariant under a cohomogeneity one action of $\mathrm{SU}(n+1)$. Analogous results are obtained…

Differential Geometry · Mathematics 2024-04-23 Marcus Khuri , Hari Kunduri
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