Global solutions of inhomogeneous Hamilton-Jacobi equations

P Souplet, QS Zhang - Journal d'analyse mathématique, 2006 - Springer
We consider the viscous Hamilton-Jacobi (VHJ) equation ut-Δ u=|∇ u| p+ h (x). For the
Dirichlet problem with p> 2, it is known that gradient blow-up may occur in finite time (on the …

Single-point gradient blow-up on the boundary for diffusive Hamilton-Jacobi equations in planar domains

L Yuxiang, P Souplet - Communications in Mathematical Physics, 2010 - Springer
Abstract Consider the diffusive Hamilton-Jacobi equation ut= Δ u+|∇ u| p, p> 2, on a
bounded domain Ω with zero-Dirichlet boundary conditions, which arises in the KPZ model …

[PDF][PDF] Stabilization towards a singular steady state with gradient blow-up for a diffusion-convection problem

P Souplet, JL Vázquez - Discrete and Continuous Dynamical Systems, 2006 - Citeseer
This paper is devoted to analyse a case of singularity formation in infinite time for a
semilinear heat equation involving linear diffusion and superlinear convection. A feature to …

Analysis of the loss of boundary conditions for the diffusive Hamilton–Jacobi equation

A Porretta, P Souplet - Annales de l'IHP Analyse non linéaire, 2017 - numdam.org
We consider the diffusive Hamilton–Jacobi equation, with superquadratic Hamiltonian,
homogeneous Dirichlet conditions and regular initial data. It is known from [4](Barles–DaLio …

Existence results for a Cauchy–Dirichlet parabolic problem with a repulsive gradient term

M Magliocca - Nonlinear Analysis, 2018 - Elsevier
We study the existence of solutions of a nonlinear parabolic problem of Cauchy–
Dirichlettype having a lower order term which depends on the gradient. The model we have …

Decay estimates for a viscous Hamilton–Jacobi equation with homogeneous Dirichlet boundary conditions

S Benachour, S Dăbuleanu-Hapca… - Asymptotic …, 2007 - content.iospress.com
Global classical solutions to the viscous Hamilton–Jacobi equation ut− Δu= a|∇ u| p in
(0,∞)× Ω with homogeneous Dirichlet boundary conditions are shown to converge to zero in …

Quenching phenomenon of singular parabolic problems with L1 initial data

AN Dao, JI Díaz Díaz, P Sauvy - 2016 - docta.ucm.es
We extend some previous existence results for quenching type parabolic problems involving
a negative power of the unknown in the equation to the case of merely integrable initial data …

Global existence and asymptotic behavior for diffusive Hamilton–Jacobi equations with Neumann boundary conditions

J Domínguez-de-Tena, P Souplet - Journal of Elliptic and Parabolic …, 2024 - Springer
We investigate the diffusive Hamilton–Jacobi equation ut− u=|∇ u| p with p> 1, in a smooth
bounded domain of Rn with homogeneous Neumann boundary conditions and W1,∞ initial …

L∞ estimates and uniqueness results for nonlinear parabolic equations with gradient absorption terms

MF Bidaut-Véron, NA Dao - Nonlinear Analysis: Theory, Methods & …, 2013 - Elsevier
We study the nonnegative solutions of the viscous Hamilton–Jacobi problem {ut− ν Δ u+|∇
u| q= 0, u (0)= u 0, in Q Ω, T= Ω×(0, T), where q> 1, ν≧ 0, T∈(0,∞], and Ω= RN or Ω is a …

Convergence to steady states for a one-dimensional viscous Hamilton–Jacobi equation with Dirichlet boundary conditions

P Laurençot - Pacific Journal of Mathematics, 2007 - msp.org
We investigate the convergence to steady states of the solutions to the one-dimensional
viscous Hamilton–Jacobi equation∂ tu−∂ x 2 u=|∂ xu| p, where (t, x)∈(0,∞)×(− 1, 1) and …