Results 11 to 20 of about 19,138 (302)

Computation of entanglement entropy in inhomogeneous free fermions chains by algebraic Bethe ansatz

SciPost Physics Proceedings, 2023
The computation of the entanglement entropy for inhomogeneous free fermions chains based on $q$-Racah polynomials is considered. The eigenvalues of the truncated correlation matrix are obtained from the diagonalization of the associated Heun operator via
Pierre-Antoine Bernard, Gauvain Carcone, Nicolas Crampé, Luc Vinet
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On some operator equations in the space of analytic functions and related questions; pp. 81–87 [PDF]

Proceedings of the Estonian Academy of Sciences, 2013
We investigate extended eigenvalues, extended eigenvectors, and cyclicity problems for some convolution operators. By using the Duhamel product technique, we also estimate the norm of the inner derivation operator ΔA.
Mehmet Gürdal, Filiz Şöhret
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A note on the eigensystem of the covariance matrix of dichotomous Guttman items

Frontiers in Psychology, 2015
We consider the sample covariance matrix for dichotomous Guttman items under a set of uniformity conditions, and obtain closed-form expressions for the eigenvalues and eigenvectors of the matrix.
Clintin P Davis-Stober, Jean-Paul eDoignon, Reinhard eSuck   +2 more
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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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WEIGHTED LAPLACIANS OF GRIDS AND THEIR APPLICATION FOR INSPECTION OF SPECTRAL GRAPH CLUSTERING METHODS

TASK Quarterly, 2021
This paper investigates the relationship between various types of spectral clustering methods and their kinship to relaxed versions of graph cut methods.
MIECZYSŁAW KŁOPOTEK, SŁAWOMIR WIERZCHOŃ, ROBERT KŁOPOTEK   +2 more
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Design of Damping and Control Matrices by Modification of Eigenvalues and Eigenvectors

Shock and Vibration, 1994
Direct methods are presented, in state space, for design of control matrices for structures with and without initial viscous damping. given the desired changes in the eigenvalues and eigenvectors.
Vernon H. Neubert
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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, Yogesh N. Joglekar, Gautam Vemuri   +2 more
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A teaching proposal for the study of Eigenvectors and Eigenvalues

Journal of Technology and Science Education, 2017
In this work, we present a teaching proposal which emphasizes on visualization and physical applications in the study of eigenvectors and eigenvalues.
María José Beltrán Meneu, Marina Murillo Arcila, Enrique Jordá Mora   +2 more
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Topology optimization of eigenvalues for elastic structures by topological derivatives and time domain response

Mechanical Engineering Journal
This 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, Yi CUI, Toru TAKAHASHI, Toshiro MATSUMOTO   +3 more
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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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