Geodesic
Existence of positive solutions for some polyharmonic nonlinear boundary-value problems
Electronic journal of differential equations, Tome 2003 (2003)
We present existence results for the polyharmonic nonlinear elliptic boundary-value problem

$\displaylines{ (-\Delta )^m u=f(\cdot,u) \quad \hbox{in }B \cr (\frac{\partial }{\partial \nu })^j u=0\quad \hbox{on }\partial B, \quad 0\leq j\leq m-1. }$

(in the sense of distributions), where $B$ is the unit ball in $\mathbb{R}^n$ and $n\geq 2$. The nonlinearity $f(x,t)$ satisfies appropriate conditions related to a Kato class of functions $K_{m,n}$. Our approach is based on estimates for the polyharmonic Green function with zero Dirichlet boundary conditions and on the Schauder fixed point theorem.
Classification : 34B27, 35J40
Keywords: Green function, positive solution, Schauder fixed point theorem, singular polyharmonic elliptic equation 
@article{EJDE_2003__2003__a70,
     author = {M\^aagli,  Habib and Toumi,  Faten and Zribi,  Malek},
     title = {Existence of positive solutions for some polyharmonic nonlinear boundary-value problems},
     journal = {Electronic journal of differential equations},
     year = {2003},
     volume = {2003},
     zbl = {1055.35039},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2003__2003__a70/}
}
TY  - JOUR
AU  - Mâagli,  Habib
AU  - Toumi,  Faten
AU  - Zribi,  Malek
TI  - Existence of positive solutions for some polyharmonic nonlinear boundary-value problems
JO  - Electronic journal of differential equations
PY  - 2003
VL  - 2003
UR  - http://geodesic.mathdoc.fr/item/EJDE_2003__2003__a70/
LA  - en
ID  - EJDE_2003__2003__a70
ER  - 
%0 Journal Article
%A Mâagli,  Habib
%A Toumi,  Faten
%A Zribi,  Malek
%T Existence of positive solutions for some polyharmonic nonlinear boundary-value problems
%J Electronic journal of differential equations
%D 2003
%V 2003
%U http://geodesic.mathdoc.fr/item/EJDE_2003__2003__a70/
%G en
%F EJDE_2003__2003__a70
Mâagli,  Habib; Toumi,  Faten; Zribi,  Malek. Existence of positive solutions for some polyharmonic nonlinear boundary-value problems. Electronic journal of differential equations, Tome 2003 (2003). http://geodesic.mathdoc.fr/item/EJDE_2003__2003__a70/