Results 11 to 20 of about 1,572,263 (313)
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.
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Nonnegative alternating circulants leading to M-matrix group inverses [PDF]
Linear Algebra and its Applications, 1996 Let \(\mathcal C\) denote the set of all irreducible nonnegative alternating circulant matrices, i.e. all matrices \(A= \sum^{n- 1}_{i= 0} \alpha_i P^i\), when \(P\) is an \(n\)th order cyclic permutation matrix, where \(\alpha_i> 0\) and \(\alpha_i= \alpha_j\) for \(i= j\pmod 2\).
Chen, Yonghong +2 more
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Some inequalities for the Hadamard product of an M-matrix and an inverse M-matrix [PDF]
Journal 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
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Some inequalities for the minimum eigenvalue of the Hadamard product of an M-matrix and an inverse M-matrix [PDF]
Journal of Inequalities and Applications, 2015 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhao, Jianxing, Wang, Feng, Sang, Caili
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Electronic Journal of Qualitative Theory of Differential Equations, 2020 By employing the notion of M-matrices and Banach's contraction mapping theorem, we provide complete characterisation of the existence and uniqueness of an equilibrium of a Cohen–Grossberg–Hopfield-type neural network endowed with multiple distributed ...
Israel Ncube
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On the coset duals of extended higher spin theories [PDF]
, 2013 We study the holographic duality between the M x M matrix extension of Vasiliev higher spin theories on AdS3 and the large N limit of SU(N+M)/SU(N) x U(1) type cosets.
A Achucarro +59 more
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The symmetric M-matrix and symmetric inverse M-matrix completion problems
Linear 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.
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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
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On the Iterative Methods for the Solution of Three Types of Nonlinear Matrix Equations
Mathematics, 2023 In this paper, we investigate the iterative methods for the solution of different types of nonlinear matrix equations. More specifically, we consider iterative methods for the minimal nonnegative solution of a set of Riccati equations, a nonnegative ...
Ivan G. Ivanov, Hongli Yang
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On the Reductions and Classical Solutions of the Schlesinger equations [PDF]
, 2006 The Schlesinger equations $S_{(n,m)}$ describe monodromy preserving deformations of order $m$ Fuchsian systems with $n+1$ poles. They can be considered as a family of commuting time-dependent Hamiltonian systems on the direct product of $n$ copies of $m ...
Dubrovin, B., Mazzocco, M.
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