Results 91 to 100 of about 511,067 (272)

[Elliptic Differential Equations] [PDF]

open access: yes
Reflection laws of systems of elliptic equations, on-line programming to numerically solve nonlinear integral equations, and reduction of electrostriction ...

core   +1 more source

New Solutions of Elastic Waves in an Elastic Rod under Finite Deformation

open access: yesJournal of Applied Mathematics, 2014
The nonlinear wave equation of an elastic rod under finite deformation is solved by the extended mapping method. Abundant new exact traveling wave solutions for this equation are obtained, which contain trigonometric function solutions, solitary wave ...
Peng Guo, Xiang Wu, Liangbi Wang
doaj   +1 more source

A unique solution to a nonlinear elliptic equation

open access: yesJournal of Mathematical Analysis and Applications, 2010
AbstractThe purpose of this paper is to prove the existence of a unique, classical solution u:Ω→R to the nonlinear elliptic partial differential equation −∇⋅(a(u(x))∇u(x))=f(x) under periodic boundary conditions, where u(x0)=u0 at x0∈Ω, with Ω=TN, the N-dimensional torus, and N=2,3.
openaire   +2 more sources

To the uniqueness problem for nonlinear elliptic equations

open access: yesNonlinear Analysis: Theory, Methods & Applications, 2003
We prove existence, boundedness and uniqueness of solutions to nonlinear elliptic boundary of second order under nonstandard assumptions with respect to the coefficients.
Gajewski, Herbert, Skrypnik, Igor V.
openaire   +4 more sources

nonlinear elliptic equations with singular reaction

open access: yesOsaka Journal of Mathematics, 2016
We study a nonlinear elliptic equation with a singular term and a continuous perturbation. We look for positive solutions. We prove three multiplicity theorems producing at least two positive solutions. The first multiplicity theorem concerns equations driven by a nonhomogeneous in general differential operator.
Papageorgiou, Nikolaos S   +1 more
openaire   +4 more sources

Nonlinear elliptic equations with a jumping reaction

open access: yesJournal of Mathematical Analysis and Applications, 2016
Abstract We study a nonlinear nonhomogeneous Dirichlet problem driven by the sum of a p-Laplacian and a Laplacian ( 2 p + ∞ ) and a jumping nonlinearity. Under very general conditions on the reaction and without using the Fucik spectrum, we show that the problem has at least three nontrivial solutions and we provide sign information for ...
Gasiński, Leszek   +1 more
openaire   +3 more sources

Bounds and compactness for solutions of second-order elliptic equations

open access: yesElectronic Journal of Differential Equations, 2012
In this article, we establish some connections between Sobolev spaces and nonlinear singular elliptic problems, to obtain bounds and compactness results for solutions of second-order elliptic equations.
Carlos C. Aranda
doaj  

Singular nonlinear elliptic equations in Rn

open access: yesAbstract and Applied Analysis, 1998
This paper deals with existence, uniqueness and regularity of positive generalized solutions of singular nonlinear equations of the form −Δu+a(x)u=h(x)u−γ in Rn where a,h are given, not necessarily continuous functions, and γ is a positive number.
C. O. Alves, J. V. Goncalves, L. A. Maia
doaj   +1 more source

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