The local theory for viscous Hamilton–Jacobi equations in Lebesgue spaces

M Ben-Artzi, P Souplet, FB Weissler - Journal de mathématiques pures et …, 2002 - Elsevier
We consider viscous Hamilton–Jacobi equations of the form [Formula: see text] where a∈ R,
a≠ 0 and p⩾ 1. We provide an extensive investigation of the local Cauchy problem for (VHJ) …

The Cauchy problem for ut= Δu+|∇ u| q

BH Gilding, M Guedda, R Kersner - Journal of Mathematical Analysis and …, 2003 - Elsevier
With qa positive real number, the nonlinear partial differential equation in the title of the
paper arises in the study of the growth of surfaces. In that context it is known as the …

The Cauchy problem for ut= Δu+|∇ u| q, large-time behaviour

BH Gilding - Journal de mathématiques pures et appliquées, 2005 - Elsevier
The nonlinear partial differential equation in the title is typified mathematically as a viscous
Hamilton–Jacobi equation. It arises in the study of the growth of surfaces, and in that context …

Asymptotic properties of solutions of the viscous Hamilton-Jacobi equation

P Biler, G Karch, M Guedda - Journal of Evolution Equations, 2004 - Springer
The purpose of the paper is to study properties of solutions of the Cauchy problem for the
equation u_t-Δ u+| ∇ u|^ q= 0 under the assumption (n+ 2)/(n+ 1)< q< 2. General selfsimilar …

Decay of mass for a semilinear parabolic equation

M ben—Artzi, H Koch - Communications in partial differential …, 1999 - Taylor & Francis
Decay of mass for a semilinear parabolic equation Page 1 COMMUN. IN PARTIAL
DIFFERENTIAL EQUATIONS, 24(5&6), 869-88 1 (1 999) DECAY OF MASS FOR A SEMILINEAR …

Geometry of unbounded domains, Poincaré inequalities and stability in semilinear parabolic equations

P Souplet - Communications in partial differential equations, 1999 - Taylor & Francis
We investigate thc close relations existing between certain geometric properties of domains
Ω of RN, the validity of Poincark inequalities in Ω, and the behavior of solutions of semilinear …

Positivity, decay, and extinction for a singular diffusion equation with gradient absorption

RG Iagar, P Laurençot - Journal of Functional Analysis, 2012 - Elsevier
We study qualitative properties of non-negative solutions to the Cauchy problem for the fast
diffusion equation with gradient absorption where N⩾ 1, p∈(1, 2), and q> 0. Based on …

Extinction and non‐extinction for viscous Hamilton–Jacobi equations in N

S Benachour, P Laurençot, D Schmitt… - Asymptotic …, 2002 - content.iospress.com
Extinction in finite time and non-compactness of the support are investigated for non-
negative classical solutions to the Cauchy problem ut−∆ u+|∇ u| p= 0 when p∈(0, 1). The …

Extinction and decay estimates for viscous Hamilton-Jacobi equations in ℝ^{ℕ}

S Benachour, P Laurençot, D Schmitt - Proceedings of the American …, 2002 - ams.org
We consider non-negative and integrable classical solutions to the Cauchy problem $ u_t-
\Delta u+\vert\nabla u\vert^ p= 0$ when $ p\in (0,+\infty) $. For $ p\in (0, N/(N+ 1)) $ we prove …

Gradient estimates for a degenerate parabolic equation with gradient absorption and applications

JP Bartier, P Laurençot - Journal of Functional Analysis, 2008 - Elsevier
Qualitative properties of non-negative solutions to a quasilinear degenerate parabolic
equation with an absorption term depending solely on the gradient are shown, providing …