Results 71 to 80 of about 456,815 (152)
Psi_B-energy operator and cross-power spectral density [PDF]
, 2014 In this paper we consider the hermitian extension of the cross-Psi_B-energy operator that we will denote by Psi_H. In addition, cross energy terms are formalized through multivariate signals representation.
CHONAVEL, Thierry +2 more
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Fractal and FractionalThis paper is concerned with the adaptive backstepping synchronization control for a class of variable-order (VO) fractional uncertain nonlinear system with external disturbances and a dead zone. A kind of VO fractional command filter is employed to cope
Xinyu Si +4 more
doaj +1 more source
Quantitative Estimates for Positive Linear Operators in terms of the Usual Second Modulus
Abstract and Applied Analysis, 2015 We give accurate estimates of the constants Cn(A(I),x) appearing in direct inequalities of the form |Lnf(x)-f(x)|≤Cn(A(I),x)ω2 f;σ(x)/n, f∈A(I), x∈I, and n=1,2,…, where Ln is a positive linear operator reproducing linear functions and acting on real ...
José A. Adell, A. Lekuona
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Towards the best constant in front of the Ditzian-Totik modulus of smoothness
Journal of Inequalities and Applications, 2016 We give accurate estimates for the constants K ( A ( I ) , n , x ) = sup f ∈ A ( I ) | L n f ( x ) − f ( x ) | ω σ 2 ( f ; 1 / n ) , x ∈ I , n = 1 , 2 , … , $$ K\bigl(\mathcal{A}(I), n, x\bigr)=\sup_{f\in\mathcal{A}(I)}\frac{|L_{n} f(x)-f(x)|}{\omega_ ...
José A Adell, Alberto Lekuona
doaj +1 more source
Journal of Mathematics, Volume 2026, Issue 1, 2026.This study introduces a novel family of hybrid Kantorovich‐type operators for the Baskakov–Schurer–Stancu class, integrated with a shape parameter α ∈ [0, 1]. We establish fundamental estimates and evaluate both the rate of convergence and the order of approximation utilizing the Korovkin theorem and the modulus of smoothness.
Md. Nasiruzzaman +5 more
wiley +1 more source
Approximation by the -Szász-Mirakjan Operators [PDF]
, 2012 This paper deals with approximating properties of the q-generalization of the Szász-Mirakjan operators in the case . Quantitative estimates of the convergence in the polynomial-weighted spaces and the Voronovskaja's theorem are given.
N. I. Mahmudov
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Preliminary report: black system event in South Australia on 28 September 2016 [PDF]
, 2016 This preliminary report explains how severe weather moved through South Australia on the afternoon of Wednesday 28 September 2016, with high winds, thunderstorms, lightning strikes, hail, and heavy rainfall.
Australian Energy Market Operator
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Weighted Approximation by Szász–Mirakyan–Durrmeyer Operators Reproducing Exponential Functions
MathematicsWe examine a Szász–Mirakyan–Durrmeyer type operator that reproduces the functions 1 and e2ax for a fixed parameter a>0. While its exponential reproduction property has been described in the classical literature, the effect of exponential weights on its ...
Gülsüm Ulusoy Ada, Ali Aral
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Approximation results on Dunkl generalization of Phillips operators via q-calculus
Advances in Difference Equations, 2019 The main purpose of this paper is to construct q-Phillips operators generated by Dunkl generalization. We prove several results of Korovkin type and estimate the order of convergence in terms of several moduli of continuity.
Md. Nasiruzzaman +2 more
doaj +1 more source
What About Eco‐Populism? A Neglected Historical Tradition
Constellations, Volume 33, Issue 1, Page 62-71, March 2026.
Federico Tarragoni
wiley +1 more source