Results 11 to 20 of about 2,985,813 (306)
Interval matrices: Realization of ranks by rational matrices [PDF]
Linear Algebra and its Applications, 2021 Let $α$ be a $p \times q$ interval matrix with $p \geq q$ and with the endpoints of all its entries in the set of the rational numbers. We prove that, if $α$ contains a rank-$r$ real matrix with $r \in \{2, q-2,q-1,q\}$, then it contains a rank-$r$ rational matrix.
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EA/AE-Eigenvectors of Interval Max-Min Matrices
Mathematics, 2020 Systems working in discrete time (discrete event systems, in short: DES)—based on binary operations: the maximum and the minimum—are studied in so-called max–min (fuzzy) algebra.
Martin Gavalec +2 more
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Verified bounds for the determinant of real or complex point or interval matrices
Journal of Computational and Applied Mathematics, 2020 We discuss several methods to compute a verified inclusion of the determinant of a real or complex, point or interval matrix. For point matrices, large condition number 1 0 15 , and large dimension ( n = 1000 ) still highly accurate inclusions are ...
S. Rump
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A generalization of Rohn's theorem on full-rank interval matrices [PDF]
Linear and multilinear algebra, 2018 A general closed interval matrix is a matrix whose entries are closed connected nonempty subsets of , while an interval matrix is defined to be a matrix whose entries are closed bounded nonempty intervals in . We say that a matrix A with constant entries
Elena Rubei
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Neutrino mixing, interval matrices and singular values [PDF]
Physical Review D, 2017 We study the properties of singular values of mixing matrices embedded within an experimentally determined interval matrix. We argue that any physically admissible mixing matrix needs to have the property of being a contraction. This condition constrains
K. Bielas +3 more
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IEEE Access, 2020 In this paper, we focus on the global stability analysis with respect to dynamical delayed neural networks (NNs) that contain parameter uncertainties.
Nallappan Gunasekaran +4 more
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Symbolic Algorithm for Inverting General k-Tridiagonal Interval Matrices
International Journal of Analysis and Applications, 2023 The k-tridiagonal matrices have received much attention in recent years. Many different algorithms have been proposed to improve the efficiency of k-tridiagonal matrix estimation.
Sivakumar Thirupathi +1 more
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THE EXISTENCE OF SOLUTION OF GENERALIZED EIGENPROBLEM IN INTERVAL MAX-PLUS ALGEBRA
Barekeng, 2023 An eigenproblem of a matrix is where and . Vector and are eigenvector and eigenvalue, respectively. General form of eigenvalue problem is with , .
Siswanto Siswanto
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A different view on controllability and observability of continuous time linear systems with interval coefficients [PDF]
Iranian Journal of Numerical Analysis and Optimization, 2020 We discuss the controllability and observability of time-invariant (continuous time) linear systems with interval coefficients using the notion of being full rank of interval matrices.
H.S. Amiri, A.H. Borzabadi, A. Heydari
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Incidence matrices and interval graphs [PDF]
Pacific Journal of Mathematics, 1965 Abstract : According to present genetic theory, the fine structure of genes consists of linearly ordered elements. A mutant gene is obtained by alteration of some connected portion of this structure. By examining data obtained from suitable experiments, it can be determined whether or not the blemished portions of two mutant genes intersect or not, and
Fulkerson, D. R., Gross, O. A.
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