Results 11 to 20 of about 1,573,587 (265)

Invers Moore-Penrose pada Matriks Turiyam Simbolik Real

open access: yesJambura Journal of Mathematics, 2023
The symbolic Turiyam matrix is a matrix whose entries contain symbolic Turiyam. Inverse matrices can generally be determined if the matrix is a non-singular square matrix. Currently the inverse of the symbolic Turiyam matrix of size m × n with m 6= n can
Ani Ani, Mashadi Mashadi, Sri Gemawati
doaj   +1 more source

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

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.
openaire   +5 more sources

Lipschitz Extensions to Finitely Many Points

open access: yesAnalysis and Geometry in Metric Spaces, 2018
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

miR-200b restrains EMT and aggressiveness and regulates matrix composition depending on ER status and signaling in mammary cancer

open access: yesMatrix Biology Plus, 2020
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

Some new bounds of the minimum eigenvalue for the Hadamard product of an M-matrix and an inverse M-matrix

open access: yesOpen Mathematics, 2016
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

Biomechanics of Borrelia burgdorferi Vascular Interactions

open access: yesCell Reports, 2016
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

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

open access: yesLinear Algebra and its Applications, 1988
Let A and B be M-matrices and let \(A\circ B=[a_{ik}b_{ik}]\) be their Hadamard product. The authors obtain the following estimates from below for the smallest eigenvalue \(q(A\circ B^{-1}):\) \[ (a)\quad q(A\circ B^{-1})\geq (q(A)/q(B))(\min_ iu_ iv_ i/\sum_{i}u_ iv_ i), \] where u and v are the left and the right Perron eigenvectors of B ...
Fiedler, M., Markham, Thomas L.
openaire   +2 more sources

Color critical hypergraphs and forbidden configurations [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2005
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

New bounds for the minimum eigenvalue of M-matrices

open access: yesOpen Mathematics, 2016
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

ON CAUCHY-TYPE BOUNDS FOR THE EIGENVALUES OF A SPECIAL CLASS OF MATRIX POLYNOMIALS

open access: yesUral Mathematical Journal, 2023
Let \(\mathbb{C}^{m\times m}\) be the set of all \(m\times m\) matrices whose  entries are in \(\mathbb{C},\) the set of complex numbers. Then \(P(z):=\sum\limits_{j=0}^nA_jz^j,\) \(A_j\in \mathbb{C}^{m\times m},\) \(0\leq j\leq n\) is called a matrix ...
Zahid Bashir Monga, Wali Mohammad Shah
doaj   +1 more source

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