Results 41 to 50 of about 243 (108)

Existence of positive singular solutions for a class of quasilinear elliptic equations

open access: yes, 2000
We establish existence of singular positive radial solutions to-div(A(\del u\)del u) = f(u)either to a Dirichlet problem in a punctured ball centered at the origin, or in R-N\{0}. (C) 2000 Elsevier Science B.V. All rights reserved.
Garcia Huidobro, M   +5 more
core   +1 more source

Infinitely many solutions for p-harmonic equation with singular term

open access: yes, 2013
In this paper, we study the following p-harmonic problem involving the Hardy term: Δ(|Δu|p−2Δu)−λ|u|p−2u|x|2p=f(x,u),in Ω,u=∂u∂n=0on ∂Ω, where Ω is an open bounded domain containing the origin in RN ...
Hua-Zhao Xie, Jian-Ping Wang
semanticscholar   +1 more source

Existence of solutions of elliptic boundary value problems with mixed type nonlinearities

open access: yes, 2012
We study the existence of a nontrivial solution of the following elliptic boundary value problem with mixed type nonlinearities: {−△u=f(x,u)in Ω,u=0on ∂Ω, where f(x,u)=−Ku+Wu. We consider the problem in a different case: lim|u|→∞f(x,u)/u=∞, lim|u|→0f(x,
An-Min Mao, Yan Zhu, S. Luan
semanticscholar   +1 more source

Existence of infinitely many solutions for generalized Schrödinger-Poisson system

open access: yesBoundary Value Problems, 2014
We study the nonlinear generalized Schrödinger-Poisson system: −Δu+V(x)u+K(x)ϕg(u)=f(x,u), in R3, −Δϕ=2K(x)G(u), in R3, where V(x) and K(x) are non-negative functions. The function f(x,u) is superlinear. Under appropriate assumptions on V(x), K(x), and g(
Li-Ping Xu, Hai-Bo Chen
semanticscholar   +1 more source

Existence Theorems for Non-Cooperative Elliptic Systems [PDF]

open access: yes, 2012
2010 Mathematics Subject Classification: 35J65, 35K60, 35B05, 35R05.Existence of classical C2()TC() solutions of non-cooperative weakly coupled systems of elliptic second-order PDE is proved via the method of sub- and super ...
Boyadzhiev, G.
core  

Multiplicity of positive solutions to semilinear elliptic boundary value problems

open access: yesAbstract and Applied Analysis, Volume 4, Issue 3, Page 195-208, 1999., 1999
We study semilinear elliptic boundary value problems of one parameter dependence where the number of positive solutions is discussed. Our main purpose is to characterize the critical value given by the infimum of such parameters for which positive solutions exist.
Kenichiro Umezu
wiley   +1 more source

Semilinear elliptic equations having asymptotic limits at zero and infinity

open access: yesAbstract and Applied Analysis, Volume 4, Issue 4, Page 231-242, 1999., 1999
We obtain nontrivial solutions for semilinear elliptic boundary value problems having resonance both at zero and at infinity, when the nonlinear term has asymptotic limits.
Kanishka Perera, Martin Schechter
wiley   +1 more source

Singular limit solutions for a 2-dimensional semilinear elliptic system of Liouville type

open access: yesAdvances in Nonlinear Analysis, 2016
We consider the existence of singular limit solutions for a nonlinear elliptic system of Liouville type with Dirichlet boundary conditions. We use the nonlinear domain decomposition method.
Trabelsi Maryem, Trabelsi Nihed
doaj   +1 more source

Some hemivariational inequalities in the Euclidean space

open access: yesAdvances in Nonlinear Analysis, 2019
The purpose of this paper is to study the existence of weak solutions for some classes of hemivariational problems in the Euclidean space ℝd (d ≥ 3). These hemivariational inequalities have a variational structure and, thanks to this, we are able to find
Bisci Giovanni Molica, Repovš Dušan
doaj   +1 more source

On semilinear biharmonic equations with concave-convex nonlinearities involving weight functions

open access: yes, 2014
In this paper, we consider semilinear biharmonic equations with concave-convex nonlinearities involving weight functions, where the concave nonlinear term is λf(x)|u|q−1u and the convex nonlinear term is h(x)|u|p−1u with λ∈R+.
Lu Yang, Xuan Wang
semanticscholar   +1 more source

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