Results 71 to 80 of about 811 (206)

The first eigenvalue of -Laplacian systems with nonlinear boundary conditions

open access: yesBoundary Value Problems, 2005
We study the properties of the positive principal eigenvalue and the corresponding eigenspaces of two quasilinear elliptic systems under nonlinear boundary conditions.
Magiropoulos M   +2 more
doaj  

Brezis–Nirenberg type results for the anisotropic p$p$‐Laplacian

open access: yesJournal of the London Mathematical Society, Volume 112, Issue 4, October 2025.
Abstract In this paper, we consider a quasilinear elliptic and critical problem with Dirichlet boundary conditions in presence of the anisotropic p$p$‐Laplacian. The critical exponent is the usual p★$p^{\star }$ such that the embedding W01,p(Ω)⊂Lp★(Ω)$W^{1,p}_{0}(\Omega) \subset L^{p^{\star }}(\Omega)$ is not compact.
Stefano Biagi   +3 more
wiley   +1 more source

On the existence of weak solutions for p,q-laplacian systems with weights

open access: yesElectronic Journal of Differential Equations, 2008
This paper studies degenerate quasilinear elliptic systems involving p,q-superlinear and critical nonlinearities with singularities. Existence results are obtained by using properties of the best Hardy-Sobolev constant together with an approach ...
Rodrigo S. Rodrigues   +1 more
doaj  

Multiplicity of Solutions to a Potential Operator Equation and Its Applications

open access: yesAbstract and Applied Analysis, 2014
We consider the multiplicity of solutions for operator equation involving homogeneous potential operators. With the help of Nehari manifold and fibering maps, we prove that such equation has at least two nontrivial solutions.
Jincheng Huang
doaj   +1 more source

Existence results for a class of (p,q) Laplacian systems

open access: yesNonlinear Analysis, 2010
. We establish the existence of a nontrivial solution for inhomogeneous quasilinear elliptic systems: −∆pu = λ a(x) u |u|γ−2 + α (α + β)–1 b(x) u |u|α−2 |v|β + f    in Ω, −∆qv = µ d(x) v |v|γ−2 + β (α + β)–1 b(x) |u|α v |v|β−2 + g    in Ω, (u,v) ∈ W01,p ...
G. A. Afrouzi, M. Mirzapour
doaj   +1 more source

Existence of Ground States for Quasilinear Nonhomogeneous Elliptic Systems

open access: yesJournal of Mathematical Analysis and Applications, 2000
The authors prove the existence of positive radial solutions (decaying to zero as \(|x|\to\infty\)) of the quasilinear system \(-\text{div} (A_i(|\nabla u_i|)\nabla u_i)=\sum_j a_{ij}(|x|)f_{ij}(u_j)\), \(x\in\mathbb R^N\), \(N>1\), \(i=1,2,\dots,n\). The functions \(A_i,a_{ij},f_{ij}\) are continuous, \(A_i>0\), \(a_{ij}\geq 0\), \(f_{ij}(0)=0\), \(f_{
Garcia Huidobro, M, Manasevich, R
openaire   +4 more sources

Diagnosing the Rapid Loss of Outer Radiation Belt Electrons Due To Strong Chorus‐Driven Wave‐Particle Interactions Along an Electron Injection Path

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 8, August 2025.
Abstract Multi‐spacecraft data demonstrate that intense chorus waves are excited during electron injection events that drive rapid radiation belt electron loss across a limited energy range from ∼ ${\sim} $100 to 300 keV on sub‐drift timescales through strong pitch angle diffusion.
S. Chakraborty   +7 more
wiley   +1 more source

Bounded and large radially symmetric solutions for some (p,q)-Laplacian stationary systems

open access: yesElectronic Journal of Differential Equations, 2012
This article concerns radially symmetric positive solutions of second-order quasilinear elliptic systems. In terms of the growth of the variable potential functions, we establish conditions such that the solutions are either bounded or blow up at ...
Adel Ben Dkhil, Noureddine Zeddini
doaj  

Regularity Result for Quasilinear Elliptic Systems with Super Quadratic Natural Growth Condition

open access: yesAbstract and Applied Analysis, 2013
We consider boundary regularity for weak solutions of second-order quasilinear elliptic systems under natural growth condition with super quadratic growth and obtain a general criterion for a weak solution to be regular in the neighborhood of a given ...
Shuhong Chen, Zhong Tan
doaj   +1 more source

Existence of a local strong solution to the beam–polymeric fluid interaction system

open access: yesMathematische Nachrichten, Volume 298, Issue 7, Page 2327-2379, July 2025.
Abstract We construct a unique local strong solution to the finitely extensible nonlinear elastic (FENE) dumbbell model of Warner‐type for an incompressible polymer fluid (described by the Navier–Stokes–Fokker–Planck equations) interacting with a flexible elastic shell.
Dominic Breit, Prince Romeo Mensah
wiley   +1 more source

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