Results 101 to 110 of about 3,062 (211)

On tau functions associated with linear systems [PDF]

open access: yes, 2012
\noindent {\bf Abstract} This paper considers the Fredholm determinant $\det (I-\Gamma_x)$ of a Hankel integral operator on $L^2(0, \infty )$ with kernel $\phi (s+t+2x)$, where $\phi$ is a matrix scattering function.
Samantha L. Newsham   +3 more
core  

Invertibility properties of matrix wiener‐hopf plus Hankel integral operators

open access: yesMathematical Modelling and Analysis, 2008
We consider matrix Wiener‐Hopf plus Hankel operators acting between Lebesgue spaces on the real line with Fourier symbols presenting some even properties (which in particular include unitary matrix‐valued functions), and also with Fourier symbols which ...
Giorgi Bogveradze, Luís P. Castro
doaj   +1 more source

Analysis of Cardiosignals Cohesion based on Hankel Matrix

open access: yesElektronika ir Elektrotechnika, 2008
A big part of heart disease diagnostics criteria is collected by registration and analysis of cardio signals that show electric heart activity disturbance (ECG) and hemodynamic and mechanic activity changes as impedance cardiograms (ICG) and seismocardiograms (SCG).
Keršulytė, Gintarė   +4 more
openaire   +2 more sources

Consistency of the structured total least squares estimator in a multivariate errors-in-variables model

open access: yes, 2005
The structured total least squares estimator, defined via a constrained optimization problem, is a generalization of the total least squares estimator when the data matrix and the applied correction satisfy given structural constraints.
Van Huffel, S.   +2 more
core  

Rank Test Based On Matrix Perturbation Theory [PDF]

open access: yes
In this paper, we propose methods of the determination of the rank of matrix. We consider a rank test for an unobserved matrix for which an estimate exists having normal asymptotic distribution of order N1/2 where N is the sample size. The test statistic
Zaka Ratsimalahelo
core   +2 more sources

Modal parameter identification from output data only

open access: yesMATEC Web of Conferences, 2015
To identify the modal parameters of a vibrating system from output data only we use a state space model and usually two approaches are considered: the block Hankel matrix and its shifted version and the block observability matrix and its shifted version.
Lardiès Joseph
doaj   +1 more source

The investigation of physiological data using the theory of complex systems

open access: yesLietuvos Matematikos Rinkinys, 2015
This paper presents a complex dynamic system assessment method based on Hankel matrix rank and inter-relationships between elements of the system evalution method.
Liepa Bikulčienė   +3 more
doaj   +1 more source

Interesting Explicit Expressions of Determinants and Inverse Matrices for Foeplitz and Loeplitz Matrices

open access: yesMathematics, 2019
Foeplitz and Loeplitz matrices are Toeplitz matrices with entries being Fibonacci and Lucas numbers, respectively. In this paper, explicit expressions of determinants and inverse matrices of Foeplitz and Loeplitz matrices are studied.
Zhaolin Jiang   +4 more
doaj   +1 more source

Structured low-rank approximation and its applications

open access: yes, 2008
Fitting data by a bounded complexity linear model is equivalent to low-rank approximation of a matrix constructed from the data. The data matrix being Hankel structured is equivalent to the existence of a linear time-invariant system that fits the data ...
Markovsky, Ivan
core  

On the Frobenius Norm of Commutator of Cauchy-Hankel Matrix and Exchange Matrix

open access: yesTurkish Journal of Mathematics and Computer Science
This paper gives upper and lower bounds for the Frobenius norm of the commutator of the exchange matrix and the Cauchy-Hankel matrix of the form $H_n=\left(\dfrac{2}{1+2(i+j)}\right)_{i,j=1}^n$.
Ahmet Öksüz, Süleyman Solak
openaire   +2 more sources

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