Results 21 to 30 of about 95,301 (251)

Nonlinear Elliptic Eigenvalue Problems with Discontinuities

open access: yesJournal of Mathematical Analysis and Applications, 1999
Existence of nontrivial solutions to two nonlinear eigenvalue problems with discontinuous nonlinearities is proved in this paper. The first one is given by \(-\Delta_p\in \lambda[f_0(x,u), f_1(x,u)]\) in \(D\), \(u=0\) on \(\partial D\), where \(D\) is a smooth bounded domain in \(\mathbb{R}^N\), \(p\geq 2\), \(\lambda\) is a real parameter and \(f_0(x,
Hu, Shouchuan   +2 more
openaire   +1 more source

Stable determination of the nonlinear term in a quasilinear elliptic equation by boundary measurements

open access: yesComptes Rendus. Mathématique, 2023
We establish a Lipschitz stability inequality for the problem of determining the nonlinear term in a quasilinear elliptic equation by boundary measurements.
Choulli, Mourad
doaj   +1 more source

Free Vibration Analysis of Nonlinear Structural-Acoustic System with Non-Rigid Boundaries Using the Elliptic Integral Approach

open access: yesMathematics, 2020
This study addresses the free vibration analysis of nonlinear structural-acoustic system with non-rigid boundaries. In practice, the boundaries of a panel–cavity system are usually imperfectly rigid.
Yiu-yin Lee
doaj   +1 more source

Boundary regularity for viscosity solutions of fully nonlinear elliptic equations

open access: yes, 2013
We provide regularity results at the boundary for continuous viscosity solutions to nonconvex fully nonlinear uniformly elliptic equations and inequalities in Euclidian domains.
Silvestre, Luis, Sirakov, Boyan
core   +1 more source

Nonlinear Elliptic Problems Above Criticality

open access: yesMilan Journal of Mathematics, 2006
We consider the elliptic problem Δu  +  u p  =  0, u  >  0 in an exterior domain, $$\Omega = {\mathbb{R}}^{N} \backslash {\mathcal{D}}$$ under zero Dirichlet and vanishing conditions, where
openaire   +3 more sources

Nonlinear Elliptic Boundary Value Problems at Resonance with Nonlinear Wentzell Boundary Conditions

open access: yesAdvances in Mathematical Physics, 2017
Given a bounded domain Ω⊂RN with a Lipschitz boundary ∂Ω and p,q∈(1,+∞), we consider the quasilinear elliptic equation -Δpu+α1u=f in Ω complemented with the generalized Wentzell-Robin type boundary conditions of the form bx∇up-2∂nu-ρbxΔq,Γu+α2u=g on ∂Ω ...
Ciprian G. Gal, Mahamadi Warma
doaj   +1 more source

Nonlinear elliptic p(u)−Laplacian problem with Fourier boundary condition

open access: yesCubo, 2020
We study a nonlinear elliptic \(p(u)-\) Laplacian problem with Fourier boundary conditions and \(L^1-\) data. The existence and uniqueness results of entropy solutions are established.
Stanislas Ouaro, Noufou Sawadogo
doaj   +1 more source

Recent Results on Nonlinear Elliptic Free Boundary Problems

open access: yesVietnam Journal of Mathematics, 2022
AbstractIn this paper we give an overview of some recent and older results concerning free boundary problems governed by elliptic operators.
Ferrari F., Lederman C., Salsa S.
openaire   +3 more sources

SOME ELLIPTIC PROBLEMS WITH NONLINEAR BOUNDARY CONDITIONS [PDF]

open access: yesSpectral Theory and Nonlinear Analysis with Applications to Spatial Ecology, 2005
This paper concerns with some elliptic equations with non-linear boundary conditions. Sub-supersolution and bifurcation methods are used in order to obtain existence, uniqueness or multiplicity of positive solutions.
Morales Rodrigo, Cristian   +4 more
openaire   +3 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

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