Results 11 to 20 of about 659,087 (137)

A Voronovskaya Type Theorem for Poisson-Cauchy Type singular operators

open access: closedJournal of Mathematical Analysis and Applications, 2010
The paper deals with the study of approximation properties of smooth Poisson-Cauchy type singular integral operators over the real line. A Voronovskaya type asymptotic formula is also established.
G. Anastassiou, Razvan A. Mezei
semanticscholar   +5 more sources

On the Rate of Convergence and the Voronovskaya Theorem for the Poisson Integrals for Hermite and Laguerre Expansions

open access: closedJournal of Approximation Theory, 2002
Let \(L^{(\alpha)}_n\) denote the \(n\)th Laguerre polynomial with parameter \(\alpha> -1\). The authors study properties of the Poisson integral \(A(f)\) defined for \(p\geq 1\) and \(f\in L^p([0,\infty), \omega_\alpha)\) by \[ A(f)(r, x):= \int^\infty_0 K_\alpha(r, x,y) f(y) \omega_\alpha(y) dy\qquad (0< \tau< 1, x> 0), \] where \(\omega_\alpha(y)= y^
G. Toczek, E. Wachnicki
semanticscholar   +6 more sources

Semi-discrete Voronovskaya-type theorem for positive linear operators based on Hermite interpolation with two double knots

open access: bronzeBulletin of the Transilvania University of Brasov. Series III: Mathematics and Computer Science, 2023
Since the classical asymptotic theorems of Voronovskaya-type for positive and linear operators are in fact based on the Taylor’s formula which is a very particular case of Lagrange-Hermite interpolation formula, in the recent paper Gal [3], I have ...
S. Gal
semanticscholar   +5 more sources

Ideal relatively uniform convergence with Korovkin and Voronovskaya types approximation theorems

open access: diamondFilomat, 2019
We introduce the notion of ideally relative uniform convergence of sequences of real valued functions. We then apply this notion to prove Korovkin-type approximation theorem, and then construct an illustrative example by taking (p,q)-Bernstein ...
S. A. Mohiuddine   +2 more
semanticscholar   +5 more sources

Voronovskaya Type Theorems in Weighted Spaces

open access: closedNumerical Functional Analysis and Optimization, 2016
In this article, we introduce a generalization of Gamma operators based on a function ρ having some properties and prove quantitative Voronovskaya and quantitative Gruss type Voronovskaya theorems ...
Ayşegül Erençin, Ioan Raşa
exaly   +4 more sources

Symmetrized Neural Network Operators in Fractional Calculus: Caputo Derivatives, Asymptotic Analysis, and the Voronovskaya-Santos-Sales Theorem [PDF]

open access: goldAxioms
This work presents a comprehensive mathematical framework for symmetrized neural network operators operating under the paradigm of fractional calculus.
Rômulo Damasclin Chaves dos Santos   +2 more
semanticscholar   +4 more sources

A Voronovskaya type theorem associated to geometric series of Bernstein – Durrmeyer operators

open access: bronzeCarpathian Journal of Mathematics
In this paper we give a Voronovskaya type theorem for the operators introduced by U. Abel, which are defined as the geometric series of Bernstein- Durrmeyer operators.
Stefan Garoiu
semanticscholar   +3 more sources

The Voronovskaya theorem for some linear positive operators of functions of two variables

open access: green, 1996
Summary: We give the Voronovskaya theorem for some operators \(L_{m,n}^{\{i\}}\) of the Szász-Mirakyan type defined for functions of two variables belonging to polynomial or exponential weighted spaces. Some approximation properties of these operators for functions of one variable are given in the references.
L. Rempulska, M. Skorupka
semanticscholar   +5 more sources

Full length article: Geometric series of positive linear operators and the inverse Voronovskaya theorem on a compact interval

open access: closedJournal of Approximation Theory, 2014
In this paper, the authors have considered geometric series related to a large class of positive linear operators acting on a space of functions on the interval \([0, 1]\) and studied the convergence of the series in the case of sequences of admissible operators.
U. Abel, M. Ivan, Radu Pltnea
semanticscholar   +3 more sources

The Voronovskaya theorem for some operators of the Szasz-Mirakjan type

open access: greenLe Matematiche, 1995
We give the Voronovskaya theorem for some operators  of the Szasz-Mirakjan type defined in the space of functions continuous on [0,+infinity) and having the polynomial grouth at infinity. Some approximation properties of these operators are given in [2],
Lucina Rempulska, Mariola Skorupka
doaj   +2 more sources

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