Results 61 to 70 of about 5,151 (167)

Stabilisation of linear waves with inhomogeneous Neumann boundary conditions

open access: yesInternational Journal of Control
We study linear damped and viscoelastic wave equations evolving on a bounded domain. For both models, we assume that waves are subject to an inhomogeneous Neumann boundary condition on a portion of the domain's boundary. The analysis of these models presents additional interesting features and challenges compared to their homogeneous counterparts.
Türker Özsari, Idem Susuzlu
openaire   +3 more sources

The N-membranes Problem with Neumann Type Boundary Condition

open access: yes, 2006
We consider the problem of finding the equilibrium position of N membranes constrained not to pass through each other, under prescribed volumic forces and boundary tensions. This model corresponds to solve variationally a N-system for linear second order elliptic equations with sequential constraints.
Azevedo, Assis   +2 more
openaire   +2 more sources

Eigenvalues of the Laplacian with Neumann boundary conditions [PDF]

open access: yesThe Journal of the Australian Mathematical Society. Series B. Applied Mathematics, 1985
AbstractVarious grometrical properties of a domain may be elicited from the asymptotic expansion of a spectral function of the Laplacian operator for that region with apporpriate boundary conditions. Explicit calculations, using analytical formulae for the eigenvalues, are performed for the cases fo Neumann and mixed boundary conditions, extending ...
openaire   +2 more sources

Ambrosetti-Prodi problem with degenerate potential and Neumann boundary condition

open access: yesElectronic Journal of Differential Equations, 2018
We study the degenerate elliptic equation $$ -\hbox{div}(|x|^\alpha\nabla u) =f(u)+t\phi(x)+h(x) $$ in a bounded open set $\Omega$ with homogeneous Neumann boundary condition, where $\alpha\in(0,2)$ and f has a linear growth.
Dusan D. Repovs
doaj  

Neumann boundary conditions [PDF]

open access: yes, 2019
Francisco-Javier Sayas   +2 more
openaire   +2 more sources

Existence of solutions to supercritical Neumann problems via a new variational principle

open access: yesElectronic Journal of Differential Equations, 2017
We use a new variational principle to obtain a positive solution of $$ -\Delta u + u= a(|x|)|u|^{p-2}u \quad \text{in } B_1, $$ with Neumann boundary conditions where $B_1$ is the unit ball in $\mathbb{R}^N$, a is nonnegative, radial and increasing ...
Craig Cowan, Abbas Moameni, Leila Salimi
doaj  

The Nehari manifold approach for $p(x)$-Laplacian problem with Neumann boundary condition

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2013
In this paper, we consider the system \begin{eqnarray*} \left\{\begin{array}{ll} -\Delta_{p(x)} u + |u|^{p(x)-2}u = \lambda a(x)|u|^{r_1(x)-2}u + \frac{\alpha(x)}{\alpha(x) + \beta(x)} c(x)|u|^{\alpha(x)-2}u|v|^{\beta(x)} &~\textrm{in}~\Omega\\ -
A. Taghavi   +2 more
doaj   +1 more source

Nonlinear Second Order Scalar Differential Inclusion Involving a Singular Φ−Laplacian Operator, With Nonlinear General Boundary Conditions

open access: yesInternational Journal of Differential Equations
In this paper, we study the following second order scalar differential inclusion: bzxΦz′x′∈Azx+Gx,zx,z′x a.e on Λ=0,α under nonlinear general boundary conditions incorporating a large number of boundary problems including Dirichlet, Neumann, Neumann ...
Droh Arsène Béhi   +2 more
doaj   +1 more source

Quasilinear Equations with Neumann Boundary Conditions

open access: yesMediterranean Journal of Mathematics
Keywords: Subcritical nonlinearities, gradient elliptic systems, Neumann boundary conditions, quasilinear elliptic equations, nonsmooth critical point ...
Canino, Annamaria, Mauro, Simone
openaire   +2 more sources

Infinitely many solutions via variational-hemivariational inequalities under Neumann boundary conditions

open access: yesElectronic Journal of Differential Equations, 2016
In this article, we study the variational-hemivariational inequalities with Neumann boundary condition. Using a nonsmooth critical point theorem, we prove the existence of infinitely many solutions for boundary-value problems.
Fariba Fattahi, Mohsen Alimohammady
doaj  

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