Results 21 to 30 of about 928,284 (277)

Almost absolute weighted summability with index k and matrix transformations

open access: yesJournal of Inequalities and Applications, 2021
In this paper we generalize the space ℓ ˆ k $\hat{\ell }_{k}$ of absolutely almost convergent series (J. Math. Anal. Appl. 161:50–56, 1991) via weighted mean transformations. We study some inclusion relations and their topological properties.
M. A. Sarıgöl, M. Mursaleen
doaj   +1 more source

Heuristic rating estimation - geometric approach [PDF]

open access: yes, 2014
Heuristic Rating Estimation (HRE) is a newly proposed method supporting decisions analysis based on the use of pairwise comparisons. It allows that the ranking values of some alternatives (herein referred to as concepts) are initially known, whilst the ...
Grobler-Dębska, Katarzyna   +2 more
core   +2 more sources

Time Delay Estimation for Sound Source Localization Using CNN-Based Multi-GCC Feature Fusion

open access: yesIEEE Access, 2023
Accurate time delay estimation is critical in sound source localization methods that rely on time difference of arrival. Background noise and reverberation often introduce errors in time delay estimation.
Haitao Liu   +5 more
doaj   +1 more source

High breakdown estimators to robustify phase II multivariate control charts. [PDF]

open access: yes, 2011
Control chart is a statistical process control tool that is used to monitor the changes in a process. Hotelling's T2 chart is one of the most popular control charts for monitoring independently and identically distributed random vectors.
Al-Talib, B.   +3 more
core   +1 more source

Study On Some Matrix Equations Involving The Weighted Geometric Mean and Their Application

open access: yesKalpa Publications in Engineering, 2022
In this paper we consider two matrix equations that involve the weighted geometric mean. We use the fixed point theorem in the cone of positive definite matrices to prove the existence of a unique positive definite solution. In addition, we study the multi-step stationary iterative method for those equations and prove the corresponding convergence.
Xuan Dai Le   +4 more
openaire   +2 more sources

Some means inequalities for positive operators in Hilbert spaces

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we obtain two refinements of the ordering relations among Heinz means with different parameters via the Taylor series of some hyperbolic functions and by the way, we derive new generalizations of Heinz operator inequalities.
Jin Liang, Guanghua Shi
doaj   +1 more source

Extension of Hardy Inequality on Weighted Sequence Spaces [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2009
Let and be a sequence with non-negative entries. If , denote by the infimum of those satisfying the following inequality: whenever . The purpose of this paper is to give an upper bound for the norm of operator T on weighted sequence spaces d ...
R. Lashkaripour
doaj  

Estimates for the Commutators of p-Adic Hausdorff Operator on Herz-Morrey Spaces

open access: yesMathematics, 2019
In this paper, we investigate the boundedness of commutators of matrix Hausdorff operator on the weighted p-adic Herz-Morrey space with the symbol functions in weighted central bounded mean oscillations (BMO) and Lipschitz spaces.
Naqash Sarfraz, Amjad Hussain
doaj   +1 more source

Random matrix theory within superstatistics [PDF]

open access: yes, 2005
We propose a generalization of the random matrix theory following the basic prescription of the recently suggested concept of superstatistics. Spectral characteristics of systems with mixed regular-chaotic dynamics are expressed as weighted averages of ...
A. M. Mathai   +8 more
core   +1 more source

Lattice Reduction Aided Precoding Design in Downstream G.fast DSL Networks

open access: yesIEEE Access, 2020
As a non-linear precoding alternative to Tomlinson-Harashima precoding (THP), in this paper, so-called lattice reduction aided precoding (LRP) is considered as a crosstalk precompensation technique for downstream transmission in G.fast DSL networks ...
Wouter Lanneer   +5 more
doaj   +1 more source

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