Results 101 to 110 of about 25,959 (202)

An equilibrium problem for the limiting eigenvalue distribution of rational Toeplitz matrices [PDF]

, 2009
We consider the asymptotic behavior of the eigenvalues of Toeplitz matrices with rational symbol as the size of the matrix goes to infinity. Our main result is that the weak limit of the normalized eigenvalue counting measure is a particular component of
Delvaux, Steven, Duits, Maurice
core   +1 more source

Ultra‐Short‐Term Wind Speed Prediction Based on Information Aggregation With Spatial Decoupling in Turbine Cluster Space

IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
Core approach: hybrid model combining wake dynamics, spectral clustering and adaptive neighbourhood selection. Methodology: spatial decoupling → representative turbine identification → feature aggregation via memory network. Outcome: enhanced prediction accuracy validated by real‐data comparisons, addressing spatial correlation challenges in wind farms.
Xiaofeng Zhu, Zhenxin Li, Chenghan Hou, Shoukun Zou   +3 more
wiley   +1 more source

Design and Optimization of Finite Alphabet Waveforms for Multiple‐Antenna Radar Covariance Matching

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This article propose a novel method for finite‐alphabet waveform generation based on constrained matrix decomposition. It also expands theoretical feasibility bounds for generating covariance matrices with binary waveforms, proves that matrices from autoregressive processes are always realizable and introduces an optimal adjustment procedure for ...
Karim Saifullin, Sajid Ahmed, Mohamed‐Slim Alouini   +2 more
wiley   +1 more source

Fast numerical algorithms for solving opposite-bordered tridiagonal Toeplitz linear systems and their applications

Results in Applied Mathematics
This paper presents two fast numerical algorithms for solving opposite-bordered tridiagonal Toeplitz linear systems. Both algorithms are designed to solve a system of n equations in linear time.
Hcini Fahd
doaj   +1 more source

On the eigenstructure of hermitian Toeplitz matrices with prescribed eigenpairs [PDF]

, 2009
In this paper we concern the spectral properties of hermitian Toeplitz matrices. Based on the fact that every centrohermitian matrix can be reduced to a real matrix by a simple similarity transformation, we first consider the eigenstructure of ...
Li Jing, Liu Zhongyun, Zhang Yulin
core  

Digital Signal Processing (DSP)-Oriented Reduced-Complexity Algorithms for Calculating Matrix–Vector Products with Small-Order Toeplitz Matrices

Signals
Toeplitz matrix–vector products are used in many digital signal processing applications. Direct methods for calculating such products require N2 multiplications and N(N−1) additions, where N denotes the order of the Toeplitz matrix.
Janusz P. Papliński, Aleksandr Cariow, Paweł Strzelec, Marta Makowska   +3 more
doaj   +1 more source

CHARACTERIZATIONS OF MATRIX-VALUED ASYMMETRIC TRUNCATED TOEPLITZ OPERATORS

Rocky Mountain Journal of Mathematics
We characterize matrix-valued asymmetric truncated Toeplitz operators (which are compressions of multiplication operators acting between two possibly different model spaces) by using compressed shifts, modified compressed shifts and shift invariance.
Khan, Rewayat, Ameur, Yagoub, Khan, Jamroz   +2 more
openaire   +3 more sources

On Toeplitz and Kronecker structured covariance matrix estimation

2010 IEEE Sensor Array and Multichannel Signal Processing Workshop, 2010
A number of signal processing applications require the estimation of covariance matrices. Sometimes, the particular scenario or system imparts a certain theoretical structure on the matrices that are to be estimated. Using this knowledge allows the design of algorithms exploiting such structure, resulting in more robust and accurate estimators ...
Wirfält, Petter, Jansson, Magnus
openaire   +3 more sources

Speeding up Curve25519 using Toeplitz Matrix-vector Multiplication

Proceedings of the Fifth Workshop on Cryptography and Security in Computing Systems, 2018
This paper proposes a new multiplication algorithm over F2255_19 where the de-facto standard Curve25519 [2] algorithm is based on. Our algorithm for the underlying finite field multiplication exploits the Toeplitz matrix-vector multiplication and achieves salient results.
Taskin, Halil Kemal, Cenk, Murat
openaire   +2 more sources

On unitarily invariant norms of matrix-valued linear positive operators

Journal of Inequalities and Applications, 2002
In this paper we prove several inequalities concerning invariant norms of matrices belonging to the range of some matrix-valued Linear Positive Operator (LPO).
Tilli Paolo, Capizzano Stefano Serra
doaj