Results 11 to 20 of about 1,396,823 (294)

On Markham's M-matrix properties

open access: bronzeLinear Algebra and its Applications, 1987
AbstractIf A is an n×n irreducible singular M-matrix where n > 1, it is shown that there is no positive integer m such that Am is triangular. Related results are proven for those matrices PAPt where A is a reducible singular M-matrix and P is a particular permutation matrix and for certain N0-matrices.
Ronald L. Smith
openalex   +3 more sources

The symmetric M-matrix and symmetric inverse M-matrix completion problems

open access: greenLinear Algebra and its Applications, 2002
AbstractThe symmetric M-matrix and symmetric M0-matrix completion problems are solved and results of Johnson and Smith [Linear Algebra Appl. 290 (1999) 193] are extended to solve the symmetric inverse M-matrix completion problem: (1)A pattern (i.e., a list of positions in an n×n matrix) has symmetric M-completion (i.e., every partial symmetric M-matrix
Leslie Hogben
openalex   +5 more sources

On the preconditioned GAOR method for a linear complementarity problem with an M-matrix. [PDF]

open access: yesJ Inequal Appl, 2018
Recently, based on the Hadjidimos preconditioner, a preconditioned GAOR method was proposed for solving the linear complementarity problem (Liu and Li in East Asian J. Appl. Math. 2:94-107, 2012). In this paper, we propose a new preconditioned GAOR method for solving the linear complementarity problem with an M-matrix.
Miao SX, Zhang D.
europepmc   +6 more sources

A faster algorithm for identification of an M-Matrix

open access: bronzeANZIAM Journal, 2005
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 non-singular and its inverse
Robert Wood, M. J. O'Neill
openalex   +4 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
Let A and B be nonsingular M-matrices. Some new convergent sequences of the lower bounds of the minimum eigenvalue $\tau(B\circ A^{-1})$ for the Hadamard product of B and
Feng Wang, Caili Sang, Jianxing Zhao
openaire   +2 more sources

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 )
Xiangyun Zhang   +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   +4 more sources

The effective potential of an M-matrix [PDF]

open access: yesJournal of Mathematical Physics, 2021
In the presence of a confining potential V, the eigenfunctions of a continuous Schrödinger operator −Δ + V decay exponentially with the rate governed by the part of V, which is above the corresponding eigenvalue; this can be quantified by a method of Agmon.
Marcel Filoche   +2 more
openaire   +5 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
Several convergent sequences of the lower bounds of the minimum eigenvalue for the Hadamard product of an M-matrix and an inverse M-matrix are given. Numerical examples show that these sequences could reach the true value of the minimum eigenvalue in some cases. These bounds in this paper improve some existing results.
Feng Wang, Caili Sang, Jianxing Zhao
openaire   +2 more sources

An inequality for the hadamard product of an M-matrix and an inverse M-matrix

open access: yesLinear Algebra and its Applications, 1988
AbstractAn estimate from below the smallest eigenvalue q(A∘C) of the Hadamard product A∘C of an M-matrix A and an inverse M-matrix C is proved. In particular, if A is an M-matrix of order n, we obtain the inequality q(A∘A−1)⩾1⧸n.
Thomas L. Markham   +2 more
openaire   +2 more sources

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