Results 31 to 40 of about 871,744 (361)
Eigenvalue Ratio Detection Based on Exact Moments of Smallest and Largest Eigenvalues [PDF]
, 2011 Detection based on eigenvalues of received signal covariance matrix is currently one of the most effective solution for spectrum sensing problem in cognitive radios.
Alouini, Mohamed-Slim +4 more
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Electronic Journal of Qualitative Theory of Differential Equations, 2021 In this paper, we obtain strong oscillation and non-oscillation conditions for a class of higher order differential equations in dependence on an integral behavior of its coefficients in a neighborhood of infinity.
Aigerim Kalybay +2 more
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Eigenvalues for double phase variational integrals [PDF]
, 2015 We study an eigenvalue problem in the framework of double phase variational integrals, and we introduce a sequence of nonlinear eigenvalues by a minimax procedure.
F. Colasuonno, M. Squassina
semanticscholar +1 more source
Perturbation of eigenvalues of matrix pencils and optimal assignment problem [PDF]
, 2004 We consider a matrix pencil whose coefficients depend on a positive parameter $\epsilon$, and have asymptotic equivalents of the form $a\epsilon^A$ when $\epsilon$ goes to zero, where the leading coefficient $a$ is complex, and the leading exponent $A ...
Baccelli +13 more
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Mathematical Modelling and Analysis, 2020 The article investigates the Sturm–Liouville problem with one classical and another nonlocal two-point boundary condition. We analyze zeroes, poles and critical points of the characteristic function and how the properties of this function depend on ...
Kristina Bingelė +2 more
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Synchronizability of Multi-Layer Dual-Center Coupled Star Networks
Frontiers in Physics, 2021 In the research on complex networks, synchronizability is a significant measurement of network nature. Several research studies center around the synchronizability of single-layer complex networks and few studies on the synchronizability of multi-layer ...
Jian Zhu +4 more
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Singular values and eigenvalues of tensors: a variational approach [PDF]
IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, 2005 We propose a theory of eigenvalues, eigenvectors, singular values, and singular vectors for tensors based on a constrained variational approach much like the Rayleigh quotient for symmetric matrix eigenvalues.
Lek-Heng Lim
semanticscholar +1 more source
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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Non-Hermitian oscillators with $T_{d}$ symmetry [PDF]
, 2014 We analyse some PT-symmetric oscillators with $T_{d}$ symmetry that depend on a potential parameter $g$. We calculate the eigenvalues and eigenfunctions for each irreducible representation and for a range of values of $g$.
Amore, Paolo +2 more
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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 | {{\
openaire +3 more sources