Results 31 to 40 of about 197,057 (337)
Simple eigenvectors of unbounded operators of the type “normal plus compact” [PDF]
Opuscula Mathematica, 2015 The paper deals with operators of the form \(A=S+B\), where \(B\) is a compact operator in a Hilbert space \(H\) and \(S\) is an unbounded normal one in \(H\), having a compact resolvent.
Michael Gil'
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On the asymptotics of a Robin eigenvalue problem [PDF]
, 2013 The considered Robin problem can formally be seen as a small perturbation of a Dirichlet problem. However, due to the sign of the impedance value, its associated eigenvalues converge point-wise to $-\infty$ as the perturbation goes to zero. We prove that
Cakoni, Fioralba +2 more
core +6 more sources
Exceptional Points in a Non-Markovian Anti-Parity-Time Symmetric System
Photonics, 2023 By studying the eigenvalues and eigenvectors of a non-Markovian anti parity-time (APT) symmetric system, we investigate the possibility of exceptional points (EPs) that may arise within it.
Andrew Wilkey +2 more
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Star Algebra Spectroscopy [PDF]
, 2001 The spectrum of the infinite dimensional Neumann matrices M^{11}, M^{12} and M^{21} in the oscillator construction of the three-string vertex determines key properties of the star product and of wedge and sliver states.
Ashoke Sen +21 more
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A graph discretization of the Laplace-Beltrami operator [PDF]
, 2014 We show that eigenvalues and eigenfunctions of the Laplace-Beltrami operator on a Riemannian manifold are approximated by eigenvalues and eigenvectors of a (suitably weighted) graph Laplace operator of a proximity graph on an epsilon-net.Comment: 29 ...
Burago, Dmitri +2 more
core +3 more sources
On Eigenvalues and Eigenvectors of Perturbed Pairwise Comparison Matrices
Journal of Mathematical and Fundamental Sciences, 2013 This work studied eigenvalues and eigenvectors of a class of perturbed pairwise comparison matrices (PCMs). This type of matrices arises from Analytical Hierarchical Process with inconsistency comparison. By employing some nice structures of the PCMs, we
Pudji Astuti, Agah D. Garnadi
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Mechanical Engineering JournalThis paper derives the topological derivative of structural eigenvalues based on the partial differential equations of time-harmonic elastodynamics and their weak form, with the goal of achieving topology optimization of structural eigenvalues.
Hao REN +3 more
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Approximation of eigenvalues of some unbounded self-adjoint discrete Jacobi matrices by eigenvalues of finite submatrices [PDF]
Opuscula Mathematica, 2007 We investigate the problem of approximation of eigenvalues of some self-adjoint operator in the Hilbert space \(l^2(\mathbb{N})\) by eigenvalues of suitably chosen principal finite submatrices of an infinite Jacobi matrix that defines the operator ...
Maria Malejki
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Mixed-Field Source Localization Based on the Non-Hermitian Matrix
Information, 2020 In this paper, an efficient high-order multiple signal classification (MUSIC)-like method is proposed for mixed-field source localization. Firstly, a non-Hermitian matrix is designed based on a high-order cumulant.
Minggang Mo, Zhaowei Sun
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SPCA Assisted Correlation Clustering of Hyperspectral Imagery [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014 In this study, correlation clustering is introduced to hyperspectral imagery for unsupervised classification. The main advantage of correlation clustering lies in its ability to simultaneously perform feature reduction and clustering. This algorithm also
A. Mehta, O. Dikshit
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