Results 31 to 40 of about 159,057 (193)

Exponentially Convergent Galerkin Method for Numerical Modeling of Lasing in Microcavities with Piercing Holes

open access: yesAxioms, 2021
The paper investigates an algorithm for the numerical solution of a parametric eigenvalue problem for the Helmholtz equation on the plane specially tailored for the accurate mathematical modeling of lasing modes of microring lasers.
Alexander O. Spiridonov   +4 more
doaj   +1 more source

Numerical Analysis of Nonlinear Eigenvalue Problems [PDF]

open access: yesJournal of Scientific Computing, 2010
We provide a priori error estimates for variational approximations of the ground state eigenvalue and eigenvector of nonlinear elliptic eigenvalue problems of the form $-{div} (A\nabla u) + Vu + f(u^2) u = u$, $\|u\|_{L^2}=1$. We focus in particular on the Fourier spectral approximation (for periodic problems) and on the $ _1$ and $ _2$ finite ...
Cancès, Eric   +2 more
openaire   +2 more sources

A spectral projection method for transmission eigenvalues

open access: yes, 2016
In this paper, we consider a nonlinear integral eigenvalue problem, which is a reformulation of the transmission eigenvalue problem arising in the inverse scattering theory.
Sun, Jiguang, Xu, Liwei, Zeng, Fang
core   +1 more source

Relation of deformed nonlinear algebras with linear ones

open access: yes, 2013
The relation between nonlinear algebras and linear ones is established. For one-dimensional nonlinear deformed Heisenberg algebra with two operators we find the function of deformation for which this nonlinear algebra can be transformed to a linear one ...
Nowicki, A., Tkachuk, V. M.
core   +1 more source

A global bifurcation result of a Neumann problem with indefinite weight

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2004
This paper is concerned with the bifurcation result of nonlinear Neumann problem \begin{equation} \left\{\begin{array}{lll} -\Delta_p u=& \lambda m(x)|u|^{p-2}u + f(\lambda,x,u)& \mbox{in} \ \Omega\\ \frac{\partial u}{\partial \nu}\hspace{0.55cm}= & 0 &
Abdelouahed El Khalil, M. Ouanan
doaj   +1 more source

A Semismooth Newton Method for Tensor Eigenvalue Complementarity Problem

open access: yes, 2015
In this paper, we consider the tensor eigenvalue complementarity problem which is closely related to the optimality conditions for polynomial optimization, as well as a class of differential inclusions with nonconvex processes.
Chen, Zhongming, Qi, Liqun
core   +1 more source

Positive eigenvector of nonlinear eigenvalue problem with a singular M-matrix and Newton-SOR iterative solution

open access: yesJournal of Inequalities and Applications, 2016
Some sufficient conditions are proposed in this paper such that the nonlinear eigenvalue problem with an irreducible singular M-matrix has a unique positive eigenvector.
Cheng-yi Zhang   +2 more
doaj   +1 more source

Four conjectures in Nonlinear Analysis

open access: yes, 2017
In this chapter, I formulate four challenging conjectures in Nonlinear Analysis. More precisely: a conjecture on the Monge-Amp\`ere equation; a conjecture on an eigenvalue problem; a conjecture on a non-local problem; a conjecture on disconnectedness ...
A. Bahri   +25 more
core   +1 more source

Positive Solutions for Nonlinear q-Fractional Difference Eigenvalue Problem with Nonlocal Conditions

open access: yesAbstract and Applied Analysis, 2015
The problem of positive solutions for nonlinear q-fractional difference eigenvalue problem with nonlocal boundary conditions is investigated. Based on the fixed point index theory in cones, sufficient existence of positive solutions conditions is derived
Wafa Shammakh, Maryam Al-Yami
doaj   +1 more source

What Do You Mean by “Nonlinear Eigenvalue Problems”?

open access: yesAxioms, 2018
A nonlinear eigenvalue problem is generally described by an equation of the form F(λ,x)=0, where F(λ,0)=0 for all λ, and contains by definition two unknowns: the eigenvalue parameter λ and the “nontrivial” vector(s)
Raffaele Chiappinelli
doaj   +1 more source

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