Results 21 to 30 of about 159,057 (193)

Finite element method for a nonlinear problem

open access: yesComputer Assisted Methods in Engineering and Science, 2023
We consider the nonlinear eigenvalue problem of a nonlinear partial differential equation under Dirichlet boundary condition in a two-dimensional space. The classical solutions are given for rectangular domains.
Gabriella Bognar
doaj  

Nonlinear nonhomogeneous Neumann eigenvalue problems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
Summary: We consider a nonlinear parametric Neumann problem driven by a nonhomogeneous differential operator with a reaction which is \((p-1)\)-superlinear near \(\pm\infty\) and exhibits concave terms near zero. We show that for all small values of the parameter, the problem has at least five solutions, four of constant sign and the fifth nodal.
Candito, Pasquale   +2 more
openaire   +4 more sources

A Full Multigrid Method for Nonlinear Eigenvalue Problems

open access: yes, 2015
This paper is to introduce a type of full multigrid method for the nonlinear eigenvalue problem. The main idea is to transform the solution of nonlinear eigenvalue problem into a series of solutions of the corresponding linear boundary value problems on ...
Jia, Shanghui   +3 more
core   +1 more source

Pattern selection as a nonlinear eigenvalue problem

open access: yes, 1996
A unique pattern selection in the absolutely unstable regime of driven, nonlinear, open-flow systems is reviewed. It has recently been found in numerical simulations of propagating vortex structures occuring in Taylor-Couette and Rayleigh-Benard systems ...
A. Bers   +41 more
core   +1 more source

On the existence of equilibrium states of an elastic beam on a nonlinear foundation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
This paper concerns the existence and uniqueness of equilibrium states of a beam-column with hinged ends which is acted upon by axial compression and lateral forces and is in contact with a semi-infinite medium acting as a foundation.
M. B. M. Elgindi, D. H. Y. Yen
doaj   +1 more source

An integral method for solving nonlinear eigenvalue problems

open access: yes, 2010
We propose a numerical method for computing all eigenvalues (and the corresponding eigenvectors) of a nonlinear holomorphic eigenvalue problem that lie within a given contour in the complex plane.
A. Jentzen   +32 more
core   +1 more source

On a New Characterization of Some Class Nonlinear Eigenvalue Problem

open access: yesAdvances in Mathematical Physics, 2019
A normal mode analysis of a vibrating mechanical or electrical system gives rise to an eigenvalue problem. Faber made a fairly complete study of the existence and asymptotic behavior of eigenvalues and eigenfunctions, Green’s function, and expansion ...
Lutfi Akin
doaj   +1 more source

Phase Space Derivation of a Variational Principle for One Dimensional Hamiltonian Systems

open access: yes, 1997
We consider the bifurcation problem u'' + \lambda u = N(u) with two point boundary conditions where N(u) is a general nonlinear term which may also depend on the eigenvalue \lambda.
Benguria   +7 more
core   +1 more source

Recursive integral method for transmission eigenvalues

open access: yes, 2015
Recently, a new eigenvalue problem, called the transmission eigenvalue problem, has attracted many researchers. The problem arose in inverse scattering theory for inhomogeneous media and has important applications in a variety of inverse problems for ...
Huang, Ruihao   +3 more
core   +1 more source

Eigenvalues for a class of singular problems involving p(x)-Biharmonic operator and q(x)-Hardy potential

open access: yesAdvances in Nonlinear Analysis, 2019
In this paper, we consider the nonlinear eigenvalue problem:
Khalil Abdelouahed El   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy