Results 71 to 80 of about 155 (114)

An upper bound for the Z-spectral radius of adjacency tensors. [PDF]

open access: yesJ Inequal Appl, 2018
Wu ZY, He J, Liu YM, Tian JK.
europepmc   +1 more source

An Evaluation of Software for Computing Eigenvalues of Sparse Nonsymmetric Matrices

open access: yes
The past few years have seen a significant increase in research into numerical methods for computing selected eigenvalues of large sparse nonsymmetric matrices. This research has begun to lead to the development of high-quality mathematical software. The
Lehoucq Scott   +2 more
core  

Structured Backward Error And Condition Of Generalized Eigenvalue Problems

open access: yes, 1996
. Backward errors and condition numbers are defined and evaluated for eigenvalues and eigenvectors of generalized eigenvalue problems. Both normwise and componentwise measures are used.
Nicholas   +2 more
core  

Bounds for the Z-spectral radius of nonnegative tensors. [PDF]

open access: yesSpringerplus, 2016
He J, Liu YM, Ke H, Tian JK, Li X.
europepmc   +1 more source

Infinite Eigenvalues and the QZ Algorithm

open access: yes, 1999
The implicitly shifted (bulge chasing ) QZ algorithm is the most popular method for solving the generalized eigenvalue problem Av = Bv. This paper explains why the QZ algorithm functions well even in the presence of infinite eigenvalues. The key to rapid
David S. Watkins, Preprint Sfb
core  

New inclusion sets for singular values. [PDF]

open access: yesJ Inequal Appl, 2017
He J, Liu YM, Tian JK, Ren ZR.
europepmc   +1 more source

An Overview Of Relative sin Theta Theorems For Invariant Subspaces Of Complex Matrices

open access: yes, 2007
. Relative perturbation bounds for invariant subspaces of complex matrices are reviewed, with emphasis on bounding the sines of the largest principal angle between two subspaces, i.e. sin \Theta theorems.
Ilse C. F. Ipsen
core  

RADI: a low-rank ADI-type algorithm for large scale algebraic Riccati equations. [PDF]

open access: yesNumer Math (Heidelb), 2018
Benner P   +3 more
europepmc   +1 more source

If A Matrix Has Only A Single Eigenvalue How Sensitive Is This Eigenvalue?

open access: yes, 1997
. For matrices with a single eigenvalue we analyse the sensitivity of the eigenvalue to perturbations in the matrix. We derive a closed form result that is similar in spirit to an analytical result by Lidskii; improve a bound by Henrici; and express the ...
Grace E. Cho, Ilse C.F. Ipsen
core  

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