Results 11 to 20 of about 27,057,635 (304)

The symmetric M-matrix and symmetric inverse M-matrix completion problems [PDF]

open access: yesLinear Algebra and its Applications, 2002
A partial matrix is a matrix in which some entries are specified and others are not. The completion problem for partial matrices consists in choosing values for the unspecified entries in such a way as the completed matrix belongs to a particular class of matrices. A partial \(n \times n\) matrix specifies a pattern (i.e.
Hogben, Leslie
core   +6 more sources

A faster algorithm for identification of an M-Matrix [PDF]

open access: yesANZIAM Journal, 2005
Summary: \(M\)-matrices are important in the consideration of rates of convergence of iterative methods for solving large systems of equations and are applicable in areas such as input-output systems in economic modelling, queuing theory, and engineering. The usual definition of an \(M\)-matrix has, among other requirements, that it must be nonsingular
Wood, R. J., O'Neill, M. J.
core   +5 more sources

Inverse M-matrix inequalities and generalized ultrametric matrices

open access: yesLinear Algebra and its Applications, 1995
The authors introduce a class of matrices called generalized ultrametric matrices. That class is defined in terms of triangles in the weighted graph of the matrix, and it contains the ultrametric matrices as well as some unsymmetric matrices. The authors show that a generalized ultrametric matrix is the inverse of a row diagonally dominant \(M\)-matrix
McDonald, J.J.   +3 more
openaire   +2 more sources

Matrix-M adjuvant triggers inflammasome activation and enables antigen cross-presentation through induction of lysosomal membrane permeabilization

open access: yesnpj Vaccines
Matrix-M® adjuvant, containing saponins, delivers a potent adjuvant effect and good safety profile. Given that Matrix-M is composed of Matrix-A and Matrix-C particles, comprising different saponin fractions, understanding their distinct roles can provide
Behdad Zarnegar   +17 more
doaj   +2 more sources

M-matrix characterizations.I—nonsingular M-matrices

open access: yesLinear Algebra and its Applications, 1977
AbstractThe purpose of this survey is to classify systematically a widely ranging list of characterizations of nonsingular M-matrices from the economics and mathematics literatures. These characterizations are grouped together in terms of their relations to the properties of (1) positivity of principal minors, (2) inverse-positivity and splittings, (3)
Plemmons, R.J.
openaire   +2 more sources

Some inequalities for the minimum eigenvalue of the Hadamard product of an M-matrix and an inverse M-matrix [PDF]

open access: yesJournal of Inequalities and Applications, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhao, Jianxing, Wang, Feng, Sang, Caili
openaire   +3 more sources

New inequalities for the Hadamard product of an M-matrix and an inverse M-matrix [PDF]

open access: yesJournal of Inequalities and Applications, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhao, Jianxing, Sang, Caili, Wang, Feng
openaire   +1 more source

Some inequalities for the Hadamard product of an M-matrix and an inverse M-matrix [PDF]

open access: yesJournal of Inequalities and Applications, 2013
Abstract Let A and B be nonsingular M-matrices. Some new lower bounds on the minimum eigenvalue q ( A ∘ B − 1 )
Zhou, Duanmei   +3 more
openaire   +2 more sources

Inverse M-matrix, a new characterization [PDF]

open access: yesLinear Algebra and its Applications, 2020
In this article we present a new characterization of inverse M-matrices, inverse row diagonally dominant M-matrices and inverse row and column diagonally dominant M-matrices, based on the positivity of certain inner products.
Claude Dellacherie   +2 more
openaire   +3 more sources

M-MATRIX-WP6.M1 - "DASHBOARDS OPERATIONAL WITHIN THE PILOT PARTICIPATING AGENCIES"

open access: yes, 2022
M-MATRIX-WP6.M1 - “Dashboards operational within the pilot participating agencies” Milestone report for M1 of MATRIX ...
MATRIX
core   +1 more source

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