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We introduce a generalized version of the Jang equation, designed for the general case of the Penrose Inequality in the setting of an asymptotically flat space-like hypersurface of a spacetime satisfying the dominat energy condition. The…

Differential Geometry · Mathematics 2014-01-17 Hubert L. Bray , Marcus A. Khuri

The aim of this paper is to collect some facts about the blowup of Jang's equation. First, we discuss how to construct solutions that blow up at an outermost MOTS. Second, we exclude the possibility that there are extra blowup surfaces in…

General Relativity and Quantum Cosmology · Physics 2014-11-18 Jan Metzger

We prove that the blowup term of a blowup solution of Jang's equation on an initial data set (M,g,k) near an arbitrary strictly stable MOTS $ \Sigma $ is exactly $ -\frac{1}{\sqrt{\lambda}}\log \tau $, where $ \tau $ is the distance from $…

Mathematical Physics · Physics 2019-06-24 Wenhua Yu

In this paper, we analyze the blowup behavior of regularized solutions to Jang equation inside apparent horizons. This extends the analyses outside apparent horizons done by Schoen-Yau. We will take two natural geometric treatments to…

Differential Geometry · Mathematics 2021-12-07 Kai-Wei Zhao

An important question in mathematical relativity theory is that of the nature of spacetime singularities. The equations of general relativity, the Einstein equations, are essentially hyperbolic in nature and the study of spacetime…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Alan D. Rendall

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 aim of this paper is to apply the modified potential well method and some new differential inequalities to study the asymptotic behavior of solutions to the initial homogeneous $\hbox{Neumann}$ problem of a nonlinear diffusion equation…

Analysis of PDEs · Mathematics 2020-09-11 Bin Guo , Jingjing Zhang , Menglan Liao

For arbitrary values of a parameter $\lambda\in R$, finite-time blow-up of solutions to the generalized, inviscid Proudman-Johnson equation is studied via a direct approach which involves the derivation of representation formulae for…

Analysis of PDEs · Mathematics 2013-08-07 Alejandro Sarria , Ralph Saxton

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

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

This paper is concerned with the blowup phenomenon of stochastic parabolic equations both on bounded domain and in the whole space. We introduce a new method to study the blowup phenomenon on bounded domain. Comparing with the existing…

Analysis of PDEs · Mathematics 2019-02-21 Guangying Lv , Jinlong Wei

We prove some related results concerning blow-up solutions for the Jang equation. First: it has been shown that, given an outermost marginally outer trapped surface (MOTS) \Sigma, there exists a solution to Jang's equation which blows up at…

General Relativity and Quantum Cosmology · Physics 2010-02-23 Catherine Williams

This paper is concerned with the blow-up property of solutions to an initial boundary value problem for a reaction diffusion equation with special diffusion processes. It is shown, under certain conditions on the initial data, that the…

Analysis of PDEs · Mathematics 2020-06-11 Yuzhu Han

In this short paper, we are concerned with the blowup phenomenon of stochastic parabolic equations. By using comparison principle and the results of deterministic parabolic equations, we obtain blowup results of solutions for stochastic…

Probability · Mathematics 2019-07-03 G. Lv , J. Wei

In the first part of this paper, we investigate the sharp threshold of blow-up and global existence for the focusing nonlinear Schr\"{o}dinger equation with combined nonlinearities of mass-critical and mass-subcritical power-type.…

Analysis of PDEs · Mathematics 2018-07-06 Qing Guo , Shihui Zhu

In a recent series of important works \cite{wei-zhang-1,wei-zhang-2,wei-zhang-3}, Wei-Zhang proved several vanishing theorems for non-simple blow-up solutions of singular Liouville equations. It is well known that a non-simple blow-up…

Analysis of PDEs · Mathematics 2023-05-15 Lina Wu

For a nonlinear diffusion equation on graphs whose nonlinearity violates the Lipschitz condition, we prove short-time solution existence and characterize global well-posedness by establishing sufficient criteria for blow-up phenomena and…

Analysis of PDEs · Mathematics 2025-04-16 Mengqiu Shao , Yunyan Yang , Liang Zhao

For a regular mean field equation defined on a compact Riemann surface, an important work of Bartolucci-Jevnikar-Lee-Yang \cite{bart-4} proved a uniqueness theorem for blow-up solutions under non-degeneracy assumptions. However, the proof…

Analysis of PDEs · Mathematics 2026-01-22 Lina Wu , Wenming Zou

We present a numerical study of solutions to the generalized Kadomtsev-Petviashvili equations with critical and supercritical nonlinearity for localized initial data with a single minimum and single maximum. In the cases with blow-up, we…

Analysis of PDEs · Mathematics 2013-10-22 C. Klein , R. Peter

In this paper, we study the blowup phenomena for the regular solutions of the isentropic relativistic Euler-Poisson equations with a vacuum state in spherical symmetry. Using a general family of testing functions, we obtain new blowup…

Analysis of PDEs · Mathematics 2016-03-24 Wai Hong Chan , Sen Wong , Manwai Yuen
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