Results 31 to 40 of about 43,843 (312)

Partial eigenvalue assignment problem of linear control systems using orthogonality relations [PDF]

open access: yesActa Montanistica Slovaca, 2006
The partial eigenvalue assignment is the problem of reassigning a part of the open-loop spectrum of a linear system by a feedback control, leaving the rest of the spectrum invariant.
Mohamed A. Ramadan, Ehab A. El - Sayed
doaj  

Eigenvector dreaming

open access: yesJournal of Statistical Mechanics: Theory and Experiment
Abstract Among the performance-enhancing procedures for Hopfield-type networks that implement associative memory, Hebbian unlearning (HU) (or dreaming) strikes for its simplicity and lucid biological interpretation. However, it does not easily lend to a clear analytical understanding.
Benedetti, Marco   +3 more
openaire   +4 more sources

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

A First Approach to Quantum Logical Shape Classification Framework

open access: yesMathematics
Quantum logic is a well-structured theory, which has recently received some attention because of its fundamental relation to quantum computing. However, the complex foundation of quantum logic borrowing concepts from different branches of mathematics as ...
Alexander Köhler   +2 more
doaj   +1 more source

Spectrum of free-form Sudoku graphs

open access: yesOpen Mathematics, 2018
A free-form Sudoku puzzle is a square arrangement of m ×m cells such that the cells are partitioned into m subsets (called blocks) of equal cardinality. The goal of the puzzle is to place integers 1, . .
Abudayah Mohammad   +2 more
doaj   +1 more source

Reversible Self-Dual Codes Over the Ring F2 + uF2

open access: yesIEEE Access
In this study, we introduce bisymmetric self-dual codes over the finite field ${\mathbb F}_{2}$ of order two. We developed a method to generate binary bisymmetric self-dual codes from a small-length bisymmetric self-dual code by increasing its length ...
Hyun Jin Kim, Whan-Hyuk Choi
doaj   +1 more source

Simple eigenvectors of unbounded operators of the type “normal plus compact” [PDF]

open access: yesOpuscula 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'
doaj   +1 more source

Correlation between diffusion tensor indices and fascicular morphometric parameters of peripheral nerve

open access: yesFrontiers in Physiology, 2023
Introduction: Diffusion tensor imaging (DTI) is a magnetic resonance imaging (MRI) technique that measures the anisotropy of water diffusion. Clinical magnetic resonance imaging scanners enable visualization of the structural integrity of larger axonal ...
Luka Pušnik   +5 more
doaj   +1 more source

Linearizability of eigenvector nonlinearities

open access: yesCoRR, 2021
We present a method to linearize, without approximation, a specific class of eigenvalue problems with eigenvector nonlinearities (NEPv), where the nonlinearities are expressed by scalar functions that are defined by a quotient of linear functions of the eigenvector.
Claes, Rob   +3 more
openaire   +2 more sources

Galerkin eigenvector approximations [PDF]

open access: yesMathematics of Computation, 2000
How close are Galerkin eigenvectors to the best approximation available out of the trial subspace? Under a variety of conditions the Galerkin method gives an approximate eigenvector that approaches asymptotically the projection of the exact eigenvector onto the trial subspace—and this occurs more rapidly than the underlying rate of
openaire   +2 more sources

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