Results 31 to 40 of about 807 (97)

Positivity of the infimum eigenvalue for equations of p(x)-Laplace type in RN

open access: yesBoundary Value Problems, 2013
We study the following elliptic equations with variable exponents −div(ϕ(x,|∇u|)∇u)=λf(x,u)in RN. Under suitable conditions on ϕ and f, we show the existence of positivity of the infimum of all eigenvalues for the problem above, and then give an ...
I. Kim, Yun-Ho Kim
semanticscholar   +2 more sources

Existence of an unbounded branch of the set of solutions for equations of p(x)-Laplace type

open access: yesBoundary Value Problems, 2014
We are concerned with the following nonlinear problem −div(ϕ(x,|∇u|)∇u)=μ|u|p(x)−2u+f(λ,x,u,∇u)in Ω subject to Dirichlet boundary conditions, provided that μ is not an eigenvalue of the p(x)-Laplacian.
Yun-Ho Kim
semanticscholar   +2 more sources

Three weak solutions for a Neumann elliptic equations involving the p→(x)\vec p\left( x \right)-Laplacian operator

open access: yesNonautonomous Dynamical Systems, 2020
The aim of this paper is to establish the existence of at least three weak solutions for the following elliptic Neumann problem {-Δp→(x)u+α(x)|u|p0(x)-2u=λf(x,u)inΩ,∑i=1N|∂u∂xi|pi(x)-2∂u∂xiγi=0on∂Ω,\left\{ {\matrix{ { - {\Delta _{\vec p\left( x \right)}}
Ahmed Ahmed   +1 more
doaj   +1 more source

Least energy sign-changing solutions for a nonlocal anisotropic Kirchhoff type equation

open access: yesMoroccan Journal of Pure and Applied Analysis, 2022
In this paper, we investigate the existence of sign-changing solutions for the following class of fractional Kirchhoff type equations with potential (1+b[u]α2)((-Δx)αu-Δyu)+V(x,y)u=f(x,y,u),(x,y)∈ℝN=ℝn×ℝm,\left( {1 + b\left[ u \right]_\alpha ^2} \right ...
Rahmani Mohammed   +3 more
doaj   +1 more source

ON THE WEAK SOLUTIONS OF THE URYSOHN-STIELTJES FUNCTIONAL INTEGRAL EQUATIONS

open access: yes, 2018
The analysis of Urysohn-Stieltjes integral operators has been studied in [1]. Here we study the existence of weakly solution of functional integral equations of Urysohn-Stieltjes type and Hammerstien-Stieltjes type in the reflexive Banach space E.
A. El-Sayed, M. M. Al-Fadel
semanticscholar   +1 more source

Weak and stationary solutions to a Cahn–Hilliard–Brinkman model with singular potentials and source terms

open access: yesAdvances in Nonlinear Analysis, 2020
We study a phase field model proposed recently in the context of tumour growth. The model couples a Cahn–Hilliard–Brinkman (CHB) system with an elliptic reaction-diffusion equation for a nutrient.
Ebenbeck Matthias, Lam Kei Fong
doaj   +1 more source

MULTIPLE SOLUTIONS FOR A CLASS OF (P1(X), P2(X))-LAPLACIAN PROBLEMS WITH NEUMANN BOUNDARY CONDITIONS

open access: yes, 2019
In this paper, we study the existence of solutions for a class of nonlinear Neumann problems with variable exponents of the form  −div ( (|∇u|p1(x)−2 + |∇u|p2(x)−2)∇u ) + |u|pmax(x)−2u = λf(x, u) + μg(x, u) in Ω, ∂u ∂ν = 0 on ∂Ω, where Ω ⊂ RN , N ≥ 3
N. T. Chung
semanticscholar   +1 more source

On the regularity of solutions of the boundary value problem without initial condition for Schrödinger systems in domain with conical points

open access: yesBoundary Value Problems, 2014
In this paper, we deal with the boundary value problems without initial condition for Schrödinger systems in cylinders. We establish several results on the regularity of the solutions.MSC: 35Q41, 35B65, 35D30.
Nguyen Thi Lien, N. M. Hung
semanticscholar   +2 more sources

Weak solutions for generalized p-Laplacian systems via Young measures

open access: yesMoroccan Journal of Pure and Applied Analysis, 2018
We prove the existence of weak solutions to a generalized p-Laplacian systems in degenerate form. The techniques of Young measure for elliptic systems are used to prove the existence result.
Azroul Elhoussine, Balaadich Farah
doaj   +1 more source

MULTIPLE SOLUTIONS FOR A P (X)-LAPLACIAN-LIKE PROBLEM WITH NEUMANN CONDITION ORIGINATED FROM A CAPILLARY PHENOMENA

open access: yes, 2018
This paper presents several sufficient conditions for the existence of at least three weak solutions for the following Neumann problem, originated from a capillary phenomena,  −div (( 1 + |∇u| p(x) √ 1+|∇u|2p(x) ) |∇u|p(x)−2∇u ) + a(x)|u|p(x)−2u ...
S. Heidarkhani   +3 more
semanticscholar   +1 more source

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