Results 21 to 30 of about 613,974 (314)
Consistency in Positive Reciprocal Matrices: An Improvement in Measurement Methods
IEEE Access, 2018 Consistency estimation of decision-makers' judgments in decision-making processes is fundamental to generating agreements and making decisions. Analytic hierarchy process (AHP) is a widely used method to solve this type of problem, enabling evaluation of
Jose Ignacio Pelaez +2 more
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Construction of L-equienergetic graphs using some graph operations
AKCE International Journal of Graphs and Combinatorics, 2020 For a graph G with n vertices and m edges, the eigenvalues of its adjacency matrix A(G) are known as eigenvalues of G. The sum of absolute values of eigenvalues of G is called the energy of G.
S. K. Vaidya, Kalpesh M. Popat
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Spanning trees and even integer eigenvalues of graphs [PDF]
, 2014 For a graph $G$, let $L(G)$ and $Q(G)$ be the Laplacian and signless Laplacian matrices of $G$, respectively, and $\tau(G)$ be the number of spanning trees of $G$.
Ghorbani, Ebrahim
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A parameterized shift-splitting preconditioner for saddle point problems
Mathematical Biosciences and Engineering, 2019 Recently, Chen and Ma [A generalized shift-splitting preconditioner for saddle point problems, Applied Mathematics Letters, 43 (2015) 49-55] introduced a generalized shift-splitting preconditioner for saddle point problems with symmetric positive ...
Li-Tao Zhang , Chao-Qian Li, Yao-Tang Li
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Eigenvalues and pseudo-eigenvalues of Toeplitz matrices
Linear Algebra and its Applications, 1992 The \(\varepsilon\)-pseudo-eigenvalues of an \(N\times N\) matrix \(A\) are those complex numbers \(z\) for which \(\|(zI-A)^{-1}\|_ 2\geq 1/\varepsilon>0\). The authors' results, which are partly empirical, show that, for small \(\varepsilon\) and large \(N\), the \(\varepsilon\)- pseudospectrum of a Toeplitz matrix is roughly the same as the spectrum
Lloyd N. Trefethen, Lothar Reichel
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Journal of Fluid Science and Technology, 2017 This study examines experimentally the vortex-induced vibration (VIV) of a mechanical system with two eigenmodes. A previous experiment setup was refined to enable the experiment, and was placed in a circulating water channel to submerge a movable ...
Yoshiki NISHI, Komei SAITOH
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Diameters and Eigenvalues [PDF]
Journal of the American Mathematical Society, 1989 We derive a new upper bound for the diameter of akk-regular graphGGas a function of the eigenvalues of the adjacency matrix. Namely, suppose the adjacency matrix ofGGhas eigenvaluesλ1,λ2,…,λn{\lambda _1},{\lambda _2}, \ldots ,{\lambda _n}with|λ1|≥|λ2|≥⋯≥|λn|\left | {{\lambda _1}} \right | \geq \left | {{\lambda _2}} \right | \geq \cdots \geq \left | {{\
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Electronic Journal of Qualitative Theory of Differential Equations, 2012 This paper serves as an addendum to the paper titled Methods of extending lower order problems to higher order problems in the context of smallest eigenvalue comparisons appearing in EJQTDE no. 99, 2011.
Jeffrey Neugebauer
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Multiscaled Cross-Correlation Dynamics in Financial Time-Series [PDF]
, 2008 The cross correlation matrix between equities comprises multiple interactions between traders with varying strategies and time horizons. In this paper, we use the Maximum Overlap Discrete Wavelet Transform to calculate correlation matrices over different
Borghesi C. +8 more
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Eigenvalue Criterion-Based Feature Selectionin Principal Component Analysis of Speech
Advances in Electrical and Electronic Engineering, 2012 This article presents a specific approach for selecting a limited set of most relevant, information rich speech data from the whole amount of training data.
Peter Viszlay +2 more
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