Results 11 to 20 of about 197,953 (292)

Eigenvector Sky Subtraction [PDF]

open access: yesThe Astrophysical Journal, 2000
We develop a new method for estimating and removing the spectrum of the sky from deep spectroscopic observations; our method does not rely on simultaneous measurement of the sky spectrum with the object spectrum.
Kurtz, Michael J., Mink, Douglas J.
core   +4 more sources

Eigenvector continuation with subspace learning

open access: yesPhysical Review Letters, 2018
A common challenge faced in quantum physics is finding the extremal eigenvalues and eigenvectors of a Hamiltonian matrix in a vector space so large that linear algebra operations on general vectors are not possible.
Frame, Dillon   +5 more
core   +4 more sources

Linearizable Eigenvector Nonlinearities

open access: yesSIAM Journal on Matrix Analysis and Applications, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rob Claes   +3 more
openaire   +3 more sources

Eigenvector localization in the heavy-tailed random conductance model [PDF]

open access: yes, 2018
We generalize our former localization result about the principal Dirichlet eigenvector of the i.i.d. heavy-tailed random conductance Laplacian to the first $k$ eigenvectors. We overcome the complication that the higher eigenvectors have fluctuating signs
Flegel, Franziska
core   +3 more sources

State of art: utilizing social network analysis in diverse fields

open access: yesPublicaciones e Investigación, 2017
This paper shows an overview of the different concepts and techniques that are been used in social network analysis; also it shows new uses of SNA and different challenges that it is facing.In a first moment, it illustrates the way of representing the ...
Ibo Luis Cerra Escobar   +1 more
doaj   +1 more source

Convergence of Eigenvector Continuation [PDF]

open access: yesPhysical Review Letters, 2021
Eigenvector continuation is a computational method that finds the extremal eigenvalues and eigenvectors of a Hamiltonian matrix with one or more control parameters. It does this by projection onto a subspace of eigenvectors corresponding to selected training values of the control parameters.
Avik Sarkar, Dean Lee
openaire   +3 more sources

Vortex-induced vibration of two elastically connected bodies: experimental verification of lock-in to multiple eigenmodes

open access: yesJournal 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
doaj   +1 more source

A One-Pass Approach for Slope and Slant Estimation of Tri-Script Handwritten Words

open access: yesJournal of Intelligent Systems, 2018
Handwritten words can never complement printed words because the former are mostly written in either skewed or slanted form or in both. This very nature of handwriting adds a huge overhead when converting word images into machine-editable format through ...
Bera Suman Kumar   +6 more
doaj   +1 more source

Disorder Solutions for Generalized Ising Model with Multispin Interaction

open access: yesСовременные информационные технологии и IT-образование, 2019
This study demonstrates a development of convenient formulae for obtaining the value of the free energy in the thermodynamic limit on a set of exact disorder solutions depending on four parameters for a 2D generalized Ising model in an external magnetic ...
Pavel V. Khrapov
doaj   +1 more source

Transient Stability Analysis of a Transmission Network Using Eigenvalue Principles with Automated VAR Compensation: A Case Study of the Nigerian Eastern Grid

open access: yesEnergies, 2021
Power systems may encounter disturbances during operation as a result of switching of various components, etc. Such perturbations include transformer tap-changing action, load variations, and line outages due to various types of faults of which an earth ...
Ewaoche John Okampo   +2 more
doaj   +1 more source

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