Results 21 to 30 of about 19,797,232 (311)
The effective potential of an M-matrix [PDF]
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 +3 more sources
Lipschitz Extensions to Finitely Many Points
We consider Lipschitz maps with values in quasi-metric spaces and extend such maps to finitely many points. We prove that in this context every 1-Lipschitz map admits an extension such that its Lipschitz constant is bounded from above by the number of ...
Basso Giuliano
doaj +1 more source
The symmetric M-matrix and symmetric inverse M-matrix completion problems
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.
openaire +5 more sources
Some convergent sequences of the lower bounds of the minimum eigenvalue for the Hadamard product of a nonsingular M-matrix B and the inverse of a nonsingular M-matrix A are given by using Brauer’s theorem.
Zhao Jianxing, Sang Caili
doaj +1 more source
Secreted microRNAs (miRNAs) reside in a complex regulatory network with extracellular matrix (ECM) macromolecules, which affect cell-cell communication, therefore miRNA expression highlights its significance in several aspects of human diseases ...
Zoi Piperigkou +4 more
doaj +1 more source
ALGORITHMS FOR THE RICCATI EQUATION WITH A NONSINGULAR M-MATRIX
We consider different algorithms with linear rate of convergence for computing the minimal nonnegative solution of M-matrix algebraic Riccati equation. The performance of the considered algorithms are illustrated on numerical examples.
Ivanov, Ivelin, Baeva, Neli
openaire +1 more source
Biomechanics of Borrelia burgdorferi Vascular Interactions
Systemic dissemination of microbes is critical for progression of many infectious diseases and is associated with most mortality due to bacterial infection.
Rhodaba Ebady +10 more
doaj +1 more source
Color critical hypergraphs and forbidden configurations [PDF]
The present paper connects sharpenings of Sauer's bound on forbidden configurations with color critical hypergraphs. We define a matrix to be \emphsimple if it is a $(0,1)-matrix$ with no repeated columns.
Richard Anstee +3 more
doaj +1 more source
A faster algorithm for identification of an M-Matrix
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.
openaire +3 more sources
New bounds for the minimum eigenvalue of M-matrices
Some new bounds for the minimum eigenvalue of M-matrices are obtained. These inequalities improve existing results, and the estimating formulas are easier to calculate since they only depend on the entries of matrices.
Wang Feng, Sun Deshu
doaj +1 more source

