Results 51 to 60 of about 26,525 (190)
On the Determinant of a Certain Wiener-Hopf + Hankel Operator
, 2003 We establish an asymptotic formula for determinants of truncated Wiener-Hopf+Hankel operators with symbol equal to the exponential of a constant times the characteristic function of an interval.
Basor, Estelle L. +2 more
core +2 more sources
Multichannel Hankel Matrix Completion Through Nonconvex Optimization
IEEE Journal of Selected Topics in Signal Processing, 2018 This paper studies the multichannel missing data recovery problem when the measurements are generated by a dynamical system. A new model, termed multichannel low-rank Hankel matrices, is proposed to characterize the intrinsic low-dimensional structures in multichannel time series.
Shuai Zhang +3 more
openaire +1 more source
A New Approach to k-Jacobsthal Lucas Sequences
Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021 In this study, 〖CS〗_(k,n) of S_(k,n) Catalan transformation of 𝑘−Jacobsthal-Lucas sequences is defined. S_(k,n) Catalan transformation of 𝑘−Jacobsthal-Lucas S_(k,n) sequences is obtained.In addition the transformation of CS_(k,n) is written as the ...
Hakan Akkuş +2 more
doaj +1 more source
Linearizing and Forecasting: A Reservoir Computing Route to Digital Twins of the Brain
Advanced Science, EarlyView.A new approach uses simple neural networks to create digital twins of brain activity, capturing how different patterns unfold over time. The method generates and recovers key dynamics even from noisy data. When applied to fMRI, it predicts brain signals and reveals distinctive activity patterns across regions and individuals, opening possibilities for ...
Gabriele Di Antonio +3 more
wiley +1 more source
The Lanczos algorithm and Hankel matrix factorization
Linear Algebra and its Applications, 1992 The connection between the Lanczos algorithm for matrix tridiagonalization and fast algorithms for Hankel matrix factorization is studied. For this reason the Lanczos method for nonsymmetric matrices is discussed. Most Toeplitz solvers are based on the shift invariance of a Toeplitz matrix, and the authors note that many recursion formulae (although ...
Boley, Daniel L. +2 more
openaire +2 more sources
Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective
Advanced Electronic Materials, EarlyView.Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe +4 more
wiley +1 more source
Optimal choice of Hankel-block-Hankel matrix shape in 2-D parameter estimation: the rank-one case
, 2016 Revised version.International audienceIn this paper we analyse the performance of 2-D ESPRIT method for estimating parameters of 2-D superimposed damped exponentials.
Comon, Pierre +2 more
core +2 more sources
A block Hankel generalized confluent Vandermonde matrix
Linear Algebra and its Applications, 2014 Vandermonde matrices are well known. They have a number of interesting properties and play a role in (Lagrange) interpolation problems, partial fraction expansions, and finding solutions to linear ordinary differential equations, to mention just a few applications.
Klein, A., Spreij, P.
openaire +4 more sources
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT Constructing a biorthogonal structure from scratch, that is, defining a biorthogonal pair is quite tough. Because here the orthogonality must be established between two different sets. There are four known univariate biorthogonal polynomial sets, suggested by Laguerre, Jacobi, Hermite and Szegő‐Hermite polynomials, in the literature.
Esra Güldoğan Lekesiz
wiley +1 more source
Some Propositions on Generalized Nevanlinna Functions of the Class Nk
Advances in Mathematical Physics, 2014 Some propositions on the generalized Nevanlinna functions are derived. We indicate mainly that (1) the negative inertia index of a Hermitian generalized Loewner matrix generated by a generalized Nevanlinna function in the class Nκ does not exceed κ. This
Yan-Ping Song +3 more
doaj +1 more source