Results 11 to 20 of about 36,154 (311)

Rectangular eigenvalue problems

open access: yesAdvances in Computational Mathematics, 2022
Often the easiest way to discretize an ordinary or partial differential equation is by a rectangular numerical method, in which n basis functions are sampled at m ≫ n collocation points. We show how eigenvalue problems can be solved in this setting by QR
LN Trefethen (16502511)   +6 more
core   +7 more sources

Quadratic eigenvalue problems. [PDF]

open access: yesMathematische Nachrichten, 2007
In this report we will describe some nonlinear eigenvalue problems that arise in the areas of solid mechanics, acoustics, and coupled structural acoustics.
Day, David Minot, Walsh, Timothy Francis
core   +3 more sources

Eigenvalue and Generalized Eigenvalue Problems: Tutorial

open access: yesCoRR, 2023
This paper is a tutorial for eigenvalue and generalized eigenvalue problems. We first introduce eigenvalue problem, eigen-decomposition (spectral decomposition), and generalized eigenvalue problem.
Ghojogh, Benyamin   +2 more
core   +2 more sources

Product eigenvalue problems [PDF]

open access: yesSIAM Review, 2005
. Many eigenvalue problems are most naturally viewed as product eigenvalue problems. The eigenvalues of a matrix A are wanted, but A is not given explicitly. Instead it is presented as a product of several factors: A = AkAk−1 ···A1. Usually more accurate
David S. Watkins
core   +2 more sources

On the second eigenvalue of nonlinear eigenvalue problems

open access: yesElectronic Journal of Differential Equations, 2018
This article is devoted to the characterization of the second eigenvalue of nonlinear eigenvalue problems. We propose an abstract approach which allows to treat nonsmooth quasilinear problems and also to recover, in a unified way, previous results ...
Marco Degiovanni, Marco Marzocchi
doaj   +2 more sources

Eigenvalue inclusion sets for linear response eigenvalue problems

open access: yesDemonstratio Mathematica, 2022
In this article, some inclusion sets for eigenvalues of a matrix in the linear response eigenvalue problem (LREP) are established. It is proved that the inclusion sets are tighter than the Geršgorin-type sets.
He Jun, Liu Yanmin, Lv Wei
doaj   +1 more source

Nonlinear Eigenvalue Problems with Specified Eigenvalues [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 2014
This work considers eigenvalue problems that are nonlinear in the eigenvalue parameter. Given such a nonlinear eigenvalue problem T, we are concerned with finding the minimal backward error such that T has a set of prescribed eigenvalues with prescribed algebraic multiplicities.
Michael Karow   +2 more
openaire   +4 more sources

Generalized eigenvalue problems with specified eigenvalues [PDF]

open access: yesIMA Journal of Numerical Analysis, 2013
We consider the distance from a (square or rectangular) matrix pencil to the nearest matrix pencil in 2-norm that has a set of specified eigenvalues. We derive a singular value optimization characterization for this problem and illustrate its usefulness for two applications.
D. Kressner   +3 more
openaire   +5 more sources

Pareto Z-eigenvalue inclusion theorems for tensor eigenvalue complementarity problems

open access: yesJournal of Inequalities and Applications, 2022
This paper presents some sharp Pareto Z-eigenvalue inclusion intervals and discusses the relationships among different Pareto Z-eigenvalue inclusion intervals for tensor eigenvalue complementarity problems.
Ping Yang   +3 more
doaj   +1 more source

Stability of Heterogeneous Beams with Three Supports—Solutions Using Integral Equations

open access: yesApplied Mechanics, 2023
It is our main objective to find the critical load for three beams with cross sectional heterogeneity. Each beam has three supports, of which the intermediate one is a spring support.
László Kiss   +2 more
doaj   +1 more source

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