Results 21 to 30 of about 1,396,823 (294)
Some new bounds for the minimum eigenvalue of the Hadamard product of an M-matrix and an inverse M-matrix [PDF]
Journal of Inequalities and Applications, 2013 Let A and B be nonsingular M-matrices. Several new bounds on the minimum eigenvalue for the Hadamard product of B and the inverse matrix of A are given. These bounds can improve considerably some previous results.
Yaotang Li +3 more
openaire +2 more sources
Open 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
Invers Moore-Penrose pada Matriks Turiyam Simbolik Real
Jambura 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
Color critical hypergraphs and forbidden configurations [PDF]
Discrete 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
A new eigenvalue bound for the Hadamard product of an M-matrix and an inverse M-matrix
The Electronic Journal of Linear Algebra, 2012 If A and B are nn nonsingular M-matrices, a new lower bound for the minimum eigenvalue (AB 1 ) for the Hadamard product of A and B 1 is derived. This bound improves the result of (R. Huang. Some inequalities for the Hadamard product and the Fan product of matrices. Linear Algebra Appl., 428:1551-1559, 2008.).
Yaotang Li, Fu-Bin Chen, De-Feng Wang
openaire +2 more sources
New bounds for the minimum eigenvalue of M-matrices
Open 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
Biomechanics of Borrelia burgdorferi Vascular Interactions
Cell 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
ON CAUCHY-TYPE BOUNDS FOR THE EIGENVALUES OF A SPECIAL CLASS OF MATRIX POLYNOMIALS
Ural 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
Geometric aspects of the symmetric inverse M-matrix problem [PDF]
Linear Algebra and its Applications, 2016 We investigate the symmetric inverse M-matrix problem from a geometric perspective. The central question in this geometric context is, which conditions on the k-dimensional facets of an n-simplex S guarantee that S has no obtuse dihedral angles. First we study the properties of an n-simplex S whose k-facets are all nonobtuse, and generalize some ...
Brandts, J., Cihangir, A.
openaire +5 more sources
Square matrices with the inverse diagonal property
Kuwait Journal of ScienceWe identify the class of real square invertible matrices A for which the signs of the diagonal entries of A−1 match those of A, and begin their study. We say such matrices have the inverse diagonal property (IDP).
Susana Furtado +3 more
doaj +1 more source