Existence of solution for a class of quasilinear elliptic problem without Δ2-condition

2019 ◽  
Vol 17 (04) ◽  
pp. 665-688
Author(s):  
Claudianor O. Alves ◽  
Edcarlos D. Silva ◽  
Marcos T. O. Pimenta

The existence and multiplicity of solutions for a class of quasilinear elliptic problems are established for the type [Formula: see text] where [Formula: see text], [Formula: see text], is a smooth bounded domain. The nonlinear term [Formula: see text] is a continuous function which is superlinear at the origin and infinity. The function [Formula: see text] is an [Formula: see text]-function where the well-known [Formula: see text]-condition is not assumed. Then the Orlicz–Sobolev space [Formula: see text] may be non-reflexive. As a main model, we have the function [Formula: see text]. Here, we consider some situations where it is possible to work with global minimization, local minimization and mountain pass theorem. However, some estimates employed here are not standard for this type of problem taking into account the modular given by the [Formula: see text]-function [Formula: see text].

2017 ◽  
Vol 19 (06) ◽  
pp. 1650050 ◽  
Author(s):  
M. L. M. Carvalho ◽  
Edcarlos D. da Silva ◽  
C. Goulart

In this paper, the existence and multiplicity of solutions for a quasilinear elliptic problem driven by the [Formula: see text]-Laplacian operator is established. These solutions are also built as ground state solutions using the Nehari method. The main difficulty arises from the fact that the [Formula: see text]-Laplacian operator is not homogeneous and the nonlinear term is indefinite.


2006 ◽  
Vol 6 (4) ◽  
Author(s):  
Boumediene Abdellaoui ◽  
Eduardo Colorado ◽  
Manel Sanchón

AbstractThis article is concerned with the regularity of the entropy solution ofwhere Ω is a smooth bounded domain Ω of ℝ


2021 ◽  
Vol 11 (1) ◽  
pp. 482-502
Author(s):  
Zeyi Liu ◽  
Lulu Tao ◽  
Deli Zhang ◽  
Sihua Liang ◽  
Yueqiang Song

Abstract In this paper, we are concerned with the following a new critical nonlocal Schrödinger-Poisson system on the Heisenberg group: − a − b ∫ Ω | ∇ H u | 2 d ξ Δ H u + μ ϕ u = λ | u | q − 2 u + | u | 2 u , in Ω , − Δ H ϕ = u 2 , in Ω , u = ϕ = 0 , on ∂ Ω , $$\begin{equation*}\begin{cases} -\left(a-b\int_{\Omega}|\nabla_{H}u|^{2}d\xi\right)\Delta_{H}u+\mu\phi u=\lambda|u|^{q-2}u+|u|^{2}u,\quad &\mbox{in} \, \Omega,\\ -\Delta_{H}\phi=u^2,\quad &\mbox{in}\, \Omega,\\ u=\phi=0,\quad &\mbox{on}\, \partial\Omega, \end{cases} \end{equation*}$$ where Δ H is the Kohn-Laplacian on the first Heisenberg group H 1 $ \mathbb{H}^1 $ , and Ω ⊂ H 1 $ \Omega\subset \mathbb{H}^1 $ is a smooth bounded domain, a, b > 0, 1 < q < 2 or 2 < q < 4, λ > 0 and μ ∈ R $ \mu\in \mathbb{R} $ are some real parameters. Existence and multiplicity of solutions are obtained by an application of the mountain pass theorem, the Ekeland variational principle, the Krasnoselskii genus theorem and the Clark critical point theorem, respectively. However, there are several difficulties arising in the framework of Heisenberg groups, also due to the presence of the non-local coefficient (a − b∫Ω∣∇ H u∣2 dx) as well as critical nonlinearities. Moreover, our results are new even on the Euclidean case.


2013 ◽  
Vol 2013 ◽  
pp. 1-7
Author(s):  
Jincheng Huang

Existence and multiplicity results are established for quasilinear elliptic problems with nonlinear boundary conditions in an exterior domain. The proofs combine variational methods with a fibering map, due to the competition between the different growths of the nonlinearity and nonlinear boundary term.


2014 ◽  
Vol 526 ◽  
pp. 177-181
Author(s):  
Yuan Li ◽  
Ai Hui Sheng

The Dirichlet problem with logarithmic nonlinear term doesn't satisfy (A.R) condition. By using the variant mountain pass theorem and perturbation theorem of variational methods, the existence of nontrivial solutions are established for . We also introduce some deformation of equation with a logarithmic nonlinear term, the sign-changing solution, the Nehari manifold theory, bifurcation theory, improve the theory of variational methods.


2010 ◽  
Vol 53 (1) ◽  
pp. 175-193 ◽  
Author(s):  
Dongsheng Kang

AbstractWe deal with a singular quasilinear elliptic problem, which involves critical Hardy-Sobolev exponents and multiple Hardy terms. Using variational methods and analytic techniques, the existence of ground state solutions to the problem is obtained.


Author(s):  
Juntao Sun ◽  
Tsung-fang Wu

We study the indefinite Kirchhoff-type problem where Ω is a smooth bounded domain in and . We require that f is sublinear at the origin and superlinear at infinity. Using the mountain pass theorem and Ekeland variational principle, we obtain the multiplicity of non-trivial non-negative solutions. We improve and extend some recent results in the literature.


2009 ◽  
Vol 11 (05) ◽  
pp. 783-798 ◽  
Author(s):  
P. C. CARRIÃO ◽  
D. G. DE FIGUEIREDO ◽  
O. H. MIYAGAKI

In this work, we prove results on existence and multiplicity of non-radial solutions for a class of singular quasilinear elliptic problems of the form [Formula: see text] where B = {x ∈ ℝN: |x| < 1} (N ≥ 3) is a unit open ball centered at the origin, -∞ < a < (N - p)/p, β > 0 and [Formula: see text].


2020 ◽  
Vol 9 (1) ◽  
pp. 1351-1382 ◽  
Author(s):  
Salvador López-Martínez

Abstract In this paper we deal with the elliptic problem $$\begin{array}{} \begin{cases} \displaystyle-{\it\Delta} u=\lambda u+\mu(x)\frac{|\nabla u|^q}{u^\alpha}+f(x)\quad &\text{ in }{\it\Omega}, \\ u \gt 0 \quad &\text{ in }{\it\Omega}, \\ u=0\quad &\text{ on }\partial{\it\Omega}, \end{cases} \end{array} $$ where Ω ⊂ ℝN is a bounded smooth domain, 0 ≨ μ ∈ L∞(Ω), 0 ≨ f ∈ Lp0(Ω) for some p0 > $\begin{array}{} \frac{N}{2} \end{array}$, 1 < q < 2, α ∈ [0 1] and λ ∈ ℝ. We establish existence and multiplicity results for λ > 0 and α < q – 1, including the non-singular case α = 0. In contrast, we also derive existence and uniqueness results for λ > 0 and q – 1 < α ≤ 1. We thus complement the results in [1, 2], which are concerned with α = q – 1, and show that the value α = q – 1 plays the role of a break point for the multiplicity/uniqueness of solution.


2017 ◽  
Vol 58 (3) ◽  
pp. 031503 ◽  
Author(s):  
Marcelo F. Furtado ◽  
Edcarlos D. Silva ◽  
Maxwell L. Silva

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