Results 11 to 20 of about 249,692 (322)

A finite set of equilibria for the indeterminacy of linear rational expectations models [PDF]

open access: yes, 2014
This paper demonstrates the existence of a finite set of equilibria in the case of the indeterminacy of linear rational expectations models. The number of equilibria corresponds to the number of ways to select n eigenvectors among a larger set of ...
Chatelain, Jean-Bernard, Ralf, Kirsten
core   +5 more sources

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

Explicit Hermite-type eigenvectors of the discrete Fourier transform [PDF]

open access: yes, 2015
The search for a canonical set of eigenvectors of the discrete Fourier transform has been ongoing for more than three decades. The goal is to find an orthogonal basis of eigenvectors which would approximate Hermite functions -- the eigenfunctions of the ...
Kuznetsov, Alexey
core   +1 more source

Controllability of Brain Neural Networks in Learning Disorders—A Geometric Approach

open access: yesMathematics, 2022
The human brain can be interpreted mathematically as a linear dynamical system that shifts through various cognitive regions promoting more or less complicated behaviors. The dynamics of brain neural network play a considerable role in cognitive function
Maria Isabel García-Planas   +1 more
doaj   +1 more source

Eigenvector Sky Subtraction [PDF]

open access: yesThe Astrophysical Journal, 2000
Accepted for publication in The Astrophysical Journal (Letters) 2000 March 7.
Kurtz, Michael J., Mink, Douglas J.
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

Algebraic Bethe ansatz for the quantum group invariant open XXZ chain at roots of unity

open access: yesNuclear Physics B, 2016
For generic values of q, all the eigenvectors of the transfer matrix of the Uqsl(2)-invariant open spin-1/2 XXZ chain with finite length N can be constructed using the algebraic Bethe ansatz (ABA) formalism of Sklyanin. However, when q is a root of unity
Azat M. Gainutdinov   +1 more
doaj   +1 more source

AN EIGEN-APPROACH FOR JOINT ESTIMATION OF DIRECTION-OF-ARRIVAL AND FREQUENCY OF AN UNKNOWN NUMBER OF SIGNALS

open access: yesJordanian Journal of Computers and Information Technology, 2020
An accurate method for estimating the direction-of-arrival (DOA) jointly with the frequencies of an unknown number of source signals is proposed using the Eigen-approach. Using the minimum eigenvalues of the autocorrelation matrices produces both the DOA
Thabet Mismar
doaj   +1 more source

Eigenvectors of random matrices: A survey [PDF]

open access: yes, 2016
Eigenvectors of large matrices (and graphs) play an essential role in combinatorics and theoretical computer science. The goal of this survey is to provide an up-to-date account on properties of eigenvectors when the matrix (or graph) is random.Comment ...
O'Rourke, Sean, Vu, Van, Wang, Ke
core   +3 more sources

Elements of dynamic parameters modification and sensitivity [PDF]

open access: yesFME Transactions, 2013
Structural modifications can cause changes in the matrices of some elements. Depending on the type of structure, or a desired change, a group of elements can be modified.
Trišović Nataša   +3 more
doaj  

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