Results 11 to 20 of about 448,247 (335)

Simplification of the Gram Matrix Eigenvalue Problem for Quadrature Amplitude Modulation Signals [PDF]

open access: yesEntropy, 2022
In quantum information science, it is very important to solve the eigenvalue problem of the Gram matrix for quantum signals. This allows various quantities to be calculated, such as the error probability, mutual information, channel capacity, and the ...
Ryusuke Miyazaki   +2 more
doaj   +4 more sources

A Test Matrix for an Inverse Eigenvalue Problem [PDF]

open access: yesJournal of Applied Mathematics, 2014
We present a real symmetric tridiagonal matrix of order n whose eigenvalues are {2k}k=0n-1 which also satisfies the additional condition that its leading principle submatrix has a uniformly interlaced spectrum, {2l+1}l=0n-2.
G. M. L. Gladwell   +2 more
doaj   +5 more sources

Laguerre’s method applied to the matrix eigenvalue problem [PDF]

open access: yesMathematics of Computation, 1964
1. Introduction. We present a new algorithm for the calculation of the eigenvalues of real square matrices of orders up to 100. The basic method is directly applicable to complex matrices as well and, in both cases, with each eigenvalue X of A a vector v is produced for which (A - XI)v is null except for a small last element.
B. Parlett
openaire   +3 more sources

Some Modified Matrix Eigenvalue Problems [PDF]

open access: yesSIAM Review, 1973
We consider the numerical calculation of several matrix eigenvalue problems which require some manipulation before the standard algorithms may be used. This includes finding the stationary values of a quadratic form subject to linear constraints and determining the eigenvalues of a matrix which is modified by a matrix of rank one.
G. Golub
openaire   +4 more sources

Equivalence of Sturm-Liouville Problem with Finitely Many δ-Interactions and Matrix Eigenvalue Problems [PDF]

open access: yesInternational Journal of Analysis and Applications, 2018
The purpuse of this article is to show the matrix representations of Sturm-Liouville operators with finitely many δ-interactions. We show that a Sturm-Liouville problem with finitely many δ-interactions can be represented as a finite dimensional matrix ...
Abdullah Kablan, Mehmet Akif Çetin
doaj   +4 more sources

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

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   +2 more sources

The inverse eigenvalue problem for a Hermitian reflexive matrix and the optimization problem [PDF]

open access: yesJournal of Computational and Applied Mathematics, 2016
The inverse eigenvalue problem and the associated optimal approximation problem for Hermitian reflexive matrices with respect to a normal {k+1}-potent matrix are considered.
S. Gigola, L. Lebtahi, N. Thome
semanticscholar   +3 more sources

A Power Method for Computing the Dominant Eigenvalue of a Dual Quaternion Hermitian Matrix [PDF]

open access: yesJournal of Scientific Computing, 2023
In this paper, we first study the projections onto the set of unit dual quaternions, and the set of dual quaternion vectors with unit norms. Then we propose a power method for computing the dominant eigenvalue of a dual quaternion Hermitian matrix. For a
Chunfeng Cui, L. Qi
semanticscholar   +1 more source

Matrix Representations for a Class of Eigenparameter Dependent Sturm–Liouville Problems with Discontinuity

open access: yesAxioms, 2023
Matrix representations for a class of Sturm–Liouville problems with eigenparameters contained in the boundary and interface conditions were studied. Given any matrix eigenvalue problem of a certain type and an eigenparameter-dependent condition, a class ...
Shuang Li, Jinming Cai, Kun Li
doaj   +1 more source

Random matrix eigenvalue problems in structural dynamics: An iterative approach

open access: yes, 2022
Uncertainties need to be taken into account in the dynamic analysis of complex structures. This is because in some cases uncertainties can have a significant impact on the dynamic response and ignoring it can lead to unsafe design.
S. Adhikari, S. Chakraborty
semanticscholar   +1 more source

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