Results 61 to 70 of about 5,695,240 (285)

Multiplicity of symmetric solutions for a nonlinear eigenvalue problem in $R^n$

open access: yesElectronic Journal of Differential Equations, 2005
In this paper, we study the nonlinear eigenvalue field equation $$ -Delta u+V(|x|)u+varepsilon(-Delta_p u+W'(u))=mu u $$ where $u$ is a function from $mathbb{R}^n$ to $mathbb{R}^{n+1}$ with $ngeq 3$, $varepsilon$ is a positive parameter and $p$ greater
Daniela Visetti
doaj  

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

Interval Nonlinear Eigenvalue Problems [PDF]

open access: yes, 2013
Nonlinear eigenvalue Problems are currently receiving much attention because of its extensive applications in areas such as the dynamic analysis of mechanical systems, acoustics and fluid mechanics etc.
Sadangi, Satyabrata
core  

Chebyshev interpolation for nonlinear eigenvalue problems [PDF]

open access: yes
This work is concerned with numerical methods for matrix eigenvalue problems that are nonlinear in the eigenvalue parameter. In particular, we focus on eigenvalue problems for which the evaluation of the matrix-valued function is computationally ...
Kressner, Daniel, Effenberger, Cedric
core   +2 more sources

Performance improvement of discrete‐time linear‐quadratic regulators applied to uncertain linear systems using the Tikhonov regularization method

open access: yesAsian Journal of Control, EarlyView.
Abstract The linear‐quadratic regulator (LQR) problem of optimal control of an uncertain discrete‐time linear system (DTLS) is revisited in this paper from the perspective of Tikhonov regularization. We show that an optimally chosen regularization parameter reduces, compared to the classical LQR, the values of a scalar error function, as well as the ...
Fernando Pazos, Amit Bhaya
wiley   +1 more source

Preconditioned iterative methods for a class of nonlinear eigenvalue problems [PDF]

open access: yes, 2006
This paper proposes new iterative methods for the efficient computation of the smallest eigenvalue of symmetric nonlinear matrix eigenvalue problems of large order with a monotone dependence on the spectral parameter.
Solov'ëv S.   +2 more
core   +1 more source

Controllability and Observability Conditions for Impulsive DAEs on Time Scales

open access: yesAsian Journal of Control, EarlyView.
ABSTRACT This paper establishes criteria for controllability and observability in a class of linear time‐invariant impulsive differential‐algebraic equations (DAEs) defined on a time scale. Controllability is defined as the ability to transfer the system state from any initial condition to any desired state within a finite time interval using an ...
Awais Younus   +3 more
wiley   +1 more source

An invariant subspace problem for multilinear operators on Banach spaces and algebras

open access: yesJournal of Inequalities and Applications, 2016
This paper is concerned with the study of invariant subspace problems for nonlinear operators on Banach spaces/algebras. Our study reveals that one faces unprecedented challenges such as lack of vector space structure and unbounded spectral sets when ...
John Emenyu
doaj   +1 more source

Solving Nonlinear Second Order Delay Eigenvalue Problems by Least Square Method

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2020
     The aim of this paper is to study the nonlinear delay second order eigenvalue problems which consists of delay ordinary differential equations, in fact one of the expansion methods that is called the least square method which will be developed to ...
Israa M. Salman, Eman A. Abdul-Razzaq
doaj   +1 more source

Governing Artificial Intelligence and Digital Economy for Sustainability: Does Institutional Quality Help or Hinder SDGs Progress Across OECD Countries?

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study investigates how artificial intelligence (AI) can support sustainable development strategies in OECD countries, particularly in achieving the United Nations Sustainable Development Goals (SDGs). The study contributes to the literature by investigating the role of AI as a transformative enabler of sustainable business strategies ...
Muskan Sahu   +2 more
wiley   +1 more source

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