Results 41 to 50 of about 472 (105)

Klein–Gordon–Maxwell Systems with Nonconstant Coupling Coefficient

open access: yesAdvanced Nonlinear Studies, 2018
We study a Klein–Gordon–Maxwell system in a bounded spatial domain under Neumann boundary conditions on the electric potential. We allow a nonconstant coupling coefficient. For sufficiently small data, we find infinitely many static solutions.
Lazzo Monica, Pisani Lorenzo
doaj   +1 more source

Concentration behavior of semiclassical solutions for Hamiltonian elliptic system

open access: yesAdvances in Nonlinear Analysis, 2020
In this paper, we study the following nonlinear Hamiltonian elliptic system with gradient ...
Zhang Jian   +3 more
doaj   +1 more source

The Brezis–Nirenberg problem for nonlocal systems

open access: yesAdvances in Nonlinear Analysis, 2016
By means of variational methods we investigate existence, nonexistence as well as regularity of weak solutions for a system of nonlocal equations involving the fractional laplacian operator and with nonlinearity reaching the critical growth and ...
Faria Luiz F. O.   +4 more
doaj   +1 more source

On the existence and multiplicity of solutions to fractional Lane-Emden elliptic systems involving measures

open access: yesAdvances in Nonlinear Analysis, 2020
We study positive solutions to the fractional Lane-Emden ...
Bhakta Mousomi, Nguyen Phuoc-Tai
doaj   +1 more source

Existence and multiplicity of solutions for a class of superlinear elliptic systems

open access: yesAdvances in Nonlinear Analysis, 2018
In this paper, we establish the existence and multiplicity of solutions for a class of superlinear elliptic systems without Ambrosetti and Rabinowitz growth condition. Our results are based on minimax methods in critical point theory.
Li Chun, Agarwal Ravi P., Wu Dong-Lun
doaj   +1 more source

LARGE SOLUTIONS OF QUASILINEAR ELLIPTIC EQUATION OF MIXED TYPE

open access: yes, 2014
We consider the equation△mu = p(x)uα+q(x)uβ onR (N ≥ 2), where p, q are nonnegative continuous functions and 0 < α ≤ β. Under several hypotheses on p(x) and q(x), we obtain existence and nonexistence of blow-up solutions both for the superlinear and ...
Y. Zhang, Zuodong Yang
semanticscholar   +1 more source

A system of equations involving the fractional p-Laplacian and doubly critical nonlinearities

open access: yesAdvanced Nonlinear Studies, 2023
This article deals with existence of solutions to the following fractional pp-Laplacian system of equations: (−Δp)su=∣u∣ps*−2u+γαps*∣u∣α−2u∣v∣βinΩ,(−Δp)sv=∣v∣ps*−2v+γβps*∣v∣β−2v∣u∣αinΩ,\left\{\begin{array}{l}{\left(-{\Delta }_{p})}^{s}u={| u| }^{{p}_{s}^{
Bhakta Mousomi   +2 more
doaj   +1 more source

AN APPROXIMATION THEOREM FOR SOLUTIONS OF DEGENERATE ELLIPTIC EQUATIONS

open access: yesProceedings of the Edinburgh Mathematical Society, 2002
The main result establishes that a weak solution of degenerate elliptic equations can be approximated by a sequence of solutions of non-degenerate elliptic equations. To this end we prove an approximation theorem for $A_p$-weights.
A. C. Cavalheiro
semanticscholar   +1 more source

On the existence and multiplicity of topologically twisting incompressible $H$-harmonic maps and a structural H-condition

open access: yes, 2020
In this paper we address questions on the existence and multiplicity of solutions to the nonlinear elliptic system in divergence form ⎧⎨ ⎩ div (H∇u) = Hs|∇u|u+[cof∇u]∇P in Ω, det∇u = 1 in Ω, u = φ on ∂Ω.
George Morrison, A. Taheri
semanticscholar   +1 more source

Least energy sign-changing solutions for Schrödinger-Poisson systems with potential well

open access: yesAdvanced Nonlinear Studies, 2022
In this article, we investigate the existence of least energy sign-changing solutions for the following Schrödinger-Poisson system −Δu+V(x)u+K(x)ϕu=f(u),x∈R3,−Δϕ=K(x)u2,x∈R3,\left\{\begin{array}{ll}-\Delta u+V\left(x)u+K\left(x)\phi u=f\left(u),\hspace{1.
Chen Xiao-Ping, Tang Chun-Lei
doaj   +1 more source

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