Results 41 to 50 of about 34,257 (101)

Cloud‐mediated self‐triggered synchronisation of a general linear multi‐agent system over a directed graph

open access: yesIET Cyber-Physical Systems: Theory &Applications, Volume 9, Issue 4, Page 497-508, December 2024.
The authors propose a self‐triggered synchronisation control method of a general linear time‐invariant multi‐agent system through a cloud repository. Under asynchronous communication through a cloud, each agent has to handle uncertainties on the behaviours of its neighbouring agents as well as itself.
Takumi Namba, Kiyotsugu Takaba
wiley   +1 more source

Accurate bidiagonal decomposition of totally positive h-Bernstein-Vandermonde matrices and applications

open access: yesLinear Algebra and its Applications, 2019
Ministerio de Economía y ...
Marco García, Ana   +2 more
openaire   +2 more sources

Total positivity and high relative accuracy for several classes of Hankel matrices

open access: yesNumerical Linear Algebra with Applications, Volume 31, Issue 4, August 2024.
Summary Gramian matrices with respect to inner products defined for Hilbert spaces supported on bounded and unbounded intervals are represented through a bidiagonal factorization. It is proved that the considered matrices are strictly totally positive Hankel matrices and their catalecticant determinants are also calculated.
E. Mainar, J.M. Peña, B. Rubio
wiley   +1 more source

Bidiagonal factorizations and quasi-oscillatory rectangular matrices [PDF]

open access: yes, 2008
A real matrix A, of size m×n, is called totally nonnegative (totally positive) if all its minors are nonnegative (positive). A variant of the Neville elimination process is studied in relation to the existence of a totally nonnegative elementary ...
Gassó, Maria T., Torregrosa, Juan R.
core   +1 more source

Total positivity and least squares problems in the Lagrange basis

open access: yesNumerical Linear Algebra with Applications, Volume 31, Issue 4, August 2024.
Summary The problem of polynomial least squares fitting in the standard Lagrange basis is addressed in this work. Although the matrices involved in the corresponding overdetermined linear systems are not totally positive, rectangular totally positive Lagrange‐Vandermonde matrices are used to take advantage of total positivity in the construction of ...
Ana Marco   +2 more
wiley   +1 more source

Bidiagonal factorization of the recurrence matrix for the Hahn multiple orthogonal polynomials [PDF]

open access: yes, 2023
This paper explores a factorization using bidiagonal matrices of the recurrence matrix of Hahn multiple orthogonal polynomials. The factorization is expressed in terms of ratios involving the generalized hypergeometric function ${}_3F_2$ and is proven ...
Mañas, Manuel   +3 more
core   +1 more source

Bidiagonal decomposition of rectangular totally positive Said–Ball–Vandermonde matrices: Error analysis, perturbation theory and applications

open access: yesLinear Algebra and its Applications, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Marco, Ana, Martínez, José-Javier
openaire   +2 more sources

A Robust Image Watermarking Scheme Using Z-Transform, Discrete Wavelet Transform and Bidiagonal Singular Value Decomposition

open access: yesComputers, Materials & Continua, 2019
Watermarking is a widely used solution to the problems of authentication and copyright protection of digital media especially for images, videos, and audio data. Chaos is one of the emerging techniques adopted in image watermarking schemes due to its intrinsic cryptographic properties.
N. Jayashree, R. S. Bhuvaneswaran
openaire   +1 more source

Integer Powers of Anti-Bidiagonal Hankel Matrices [PDF]

open access: yes, 2018
In this paper we derive a general expression for integer powers of real upper and lower anti-bidiagonal matrices with constant anti-diagonals using Chebyshev polynomials.
Silva, João Lita da   +1 more
core   +1 more source

A differential equation approach to the singular value decomposition of bidiagonal matrices

open access: yesLinear Algebra and its Applications, 1986
One of the most important decompositions in matrix computations is the singular value decomposition (SVD). This paper develops a continuous approximation to the SVD of bidiagonal matrices. It turns out that such an approach is totally feasible and can be fully expressed as an autonomous ordinary differential system.
openaire   +1 more source

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