Results 41 to 50 of about 503 (69)

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

Sign-changing solutions for some nonlinear problems with strong resonance

open access: yesBoundary Value Problems, 2011
By means of critical point and index theories, we obtain the existence and multiplicity of sign-changing solutions for some elliptic problems with strong resonance at infinity, under weaker conditions.
Qian Aixia
doaj  

Blow up solutions for two-dimensional semilinear elliptic problem of Liouville type with nonlinear gradient terms

open access: yesDemonstratio Mathematica
This work investigates the existence of singular limit solutions for nonlinear elliptic systems. Our main approach focuses on using the nonlinear domain decomposition method to establish a new Liouville-type result.
Baraket Sami   +3 more
doaj   +1 more source

On certain nonlinear elliptic systems with indefinite terms

open access: yesElectronic Journal of Differential Equations, 2002
We consider an elliptic quasi linear systems with indefinite term on a bounded domain. Under suitable conditions, existence and positivity results for solutions are given. Submitted April 2, 2002. Published October 2, 2002.
Ahmed Bensedik, Mohammed Bouchekif
doaj  

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  

On the Keldys-Fichera boundary-value problem for degenerate quasilinear elliptic equations

open access: yesElectronic Journal of Differential Equations, 2002
We prove existence and uniqueness theorems for the Keldys-Fichera boundary-value problem using pseudo-monotone operators. The equation studied here is quasilinear, elliptic, and its set of degenerate points may be of non-zero measure.
Zu-Chi Chen, Benjin Xuan
doaj  

Radiative effects for some bidimensional thermoelectric problems

open access: yesAdvances in Nonlinear Analysis, 2016
There are two main objectives in this paper. One is to find sufficient conditions to ensure the existence of weak solutions for some bidimensional thermoelectric problems.
Consiglieri Luisa
doaj   +1 more source

Concavity properties for free boundary elliptic problems

open access: yes, 2010
We prove some concavity properties connected to nonlinear Bernoulli type free boundary problems. In particular, we prove a Brunn-Minkowski inequality and an Urysohn's type inequality for the Bernoulli Constant and we study the behaviour of the free ...
Bianchini, C., Salani, P.
core   +1 more source

Multiple Positive Solutions to a Kirchhoff Type Problem Involving a Critical Nonlinearity in ℝ3

open access: yesAdvanced Nonlinear Studies, 2017
In this paper, we investigate a class of Kirchhoff type problems in ℝ3{\mathbb{R}^{3}} involving a critical nonlinearity, namely,
Zhong Xiao-Jing, Tang Chun-Lei
doaj   +1 more source

Characterization of balls through optimal concavity for potential functions [PDF]

open access: yes, 2012
Let $p\in(1,n)$. If $\Omega$ is a convex domain in $\rn$ whose $p$-capacitary potential function $u$ is $(1-p)/(n-p)$-concave (i.e.
Salani, Paolo
core  

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