In this article we study the problem (P)\quad \left\{ \begin{array}{rcl} -\Delta u+|\grad u|^q=\lambda g(x)u+f(x)\inn\Omega, u>0\inn\O, u=0\onn\partial\Omega, with 1\le q\le 2 and f, g are positive measurable functions. We give assumptions on g with respect to q for which for all \lambda>0 and all f\in L^1, f\ge 0, problem (P) has a positive solution. In particular we focus our attention on g(x)=\dfrac 1{|x|^2} to prove that the assumptions on g are optimal.

Abdellaoui, B., Peral, I., PRIMO RAMOS, A. (2008). Breaking of resonance and regularizing effect of a first order quasi-linear term in some elliptic equations. ANNALES DE L INSTITUT HENRI POINCARÉ. ANALYSE NON LINÉAIRE, 25(5), 969-985 [10.1016/j.anihpc.2007.06.003].

Breaking of resonance and regularizing effect of a first order quasi-linear term in some elliptic equations

PRIMO RAMOS, ANA
2008

Abstract

In this article we study the problem (P)\quad \left\{ \begin{array}{rcl} -\Delta u+|\grad u|^q=\lambda g(x)u+f(x)\inn\Omega, u>0\inn\O, u=0\onn\partial\Omega, with 1\le q\le 2 and f, g are positive measurable functions. We give assumptions on g with respect to q for which for all \lambda>0 and all f\in L^1, f\ge 0, problem (P) has a positive solution. In particular we focus our attention on g(x)=\dfrac 1{|x|^2} to prove that the assumptions on g are optimal.
Articolo in rivista - Articolo scientifico
Quasilinear elliptic equations; Existence and nonexistence; Regularization; Resonance
English
2008
25
5
969
985
none
Abdellaoui, B., Peral, I., PRIMO RAMOS, A. (2008). Breaking of resonance and regularizing effect of a first order quasi-linear term in some elliptic equations. ANNALES DE L INSTITUT HENRI POINCARÉ. ANALYSE NON LINÉAIRE, 25(5), 969-985 [10.1016/j.anihpc.2007.06.003].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/9471
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