Results 231 to 240 of about 9,160 (266)

Factorizations of confluent Cauchy–Vandermonde matrices

Applied Mathematics and Computation, 2006
The authors give the definition of confluent Cauchy-Vandermonde matrices and interpolation interpretation, and introduce Neville elimination. Then they analyze the factorization of the inverse of a special type of confluent Cauchy-Vandermonde matrix as a product of block bidiagonal matrices by using Neville elimination.
Wang, X., Lu, L. Z.
openaire   +3 more sources

Factorization of Hessenberg matrices

Linear Algebra and its Applications, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Factoring Matrices into the Product of Circulant and Diagonal Matrices

Journal of Fourier Analysis and Applications, 2015
This paper deals with decomposing a square complex matrix into circulant and diagonal factors. A complex \(n \times n\) circulant matrix \(C\) takes the form \[ C=\left( \begin{matrix} c_0 & c_{n-1} & c_{n-2} & \cdots & c_2 & c_1 \\ c_1 & c_0 & c_{n-1} & \cdots & c_3 & c_2 \\ c_2 & c_1 & c_0 & \cdots & c_4 & c_3 \\ \vdots & \vdots & \vdots & &\vdots & \
Huhtanen Marko, Perämäki Allan
openaire   +2 more sources

Incomplete Factorizations of Matrices and Connections with H-Matrices

SIAM Journal on Numerical Analysis, 1980
There has been much recent interest in the use of incomplete factorizations of matrices, in conjunction with applications of the generalized conjugate gradient method, for approximating solutions of large sparse systems of linear equations. Underlying many of these recent developments is the theory of H-matrices, introduced by A. M. Ostrowski.
Varga, R. S., Saff, E. B., Mehrmann, V.
openaire   +2 more sources

Factorization of Quasiseparable Matrices

2008
This paper investigates some of the ideas and algorithms developed for exploiting the structure of quasiseparable matrices. The case of purely scalar generators is considered initially. The process by which a quasiseparable matrix is represented as the product of matrices comprised of its generators is explained.
openaire   +1 more source

Transformation of -spectral factorization of improper matrices to proper matrices

Systems & Control Letters, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Factoring matrices into the product of two matrices

BIT Numerical Mathematics, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

On the factorization of scattering matrices, chain matrices and transfer matrices

Annali di Matematica Pura ed Applicata, 1975
Sia J una matrice (finita) Hermitiana di elementi reali, tale che J 2=1. Una matrice S(p) (p=x+iy) e detta J-contrattiva reale, se per essa valgono, nel semipianoRe p>0, le relazioni(0.1), (0.2) e (0.5). Denotiamo col simbolo CRJ la famiglia di queste matrici.
openaire   +2 more sources

A simple method of factorization of S-matrices into jost matrices

1994
As is well known, the Jost function plays an important role in scattering theory, and particulary in the inverse scattering problem. One of the methods of obtaining Jost function F(k) is to solve Riemann-Hilbert problem for the half-plane: $$ {F_ + }\left( k \right) = {S^{ - 1}}\left( k \right)F - \left( k \right),\quad \operatorname{Im} k = 0 ...
O. I. Kisaev, A. F. Krutov, D. I. Muravyev, V. E. Troitsky   +3 more
openaire   +1 more source

Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly