Results 51 to 60 of about 165,936,345 (87)

A study on blending-type approximation through α-Szász–Durrmeyer-type operators

open access: yesJournal of Taibah University for Science
We propose a Durrmeyer-type extension of the [Formula: see text]-Szász-Mirakyan operators. By employing a unified approach based on the Lipschitz kind maximal function, weighted function spaces, and the Ditzian–Totik modulus of smoothness, we obtain ...
Priya Sehrawat   +3 more
doaj   +1 more source

Approximation Properties Variant of Baskakov–Schurer–Szász Operators Induced by Sheffer Polynomials

open access: yesMathematics
This paper introduces a new class of Baskakov–Schurer–Szász operators generated by Sheffer polynomials in a special case. We establish a Korovkin-type theorem for these operators and investigate their uniform convergence and error estimates using the ...
Naim L. Braha, Toufik Mansour
doaj   +1 more source

Direct and Inverse Estimates for Combinations of Bernstein Polynomials with Endpoint Singularities [PDF]

open access: yes, 2015
We give direct and inverse theorems for the weighted approximation of functions with endpoint singularities by combinations of Bernstein polynomials by the rth Ditzian-Totik modulus of smoothness ω r φ (f, t)w where φ is an admissible step-weight ...
Wen-Ming Lu, Wenming, Lu
core   +3 more sources

The Characterization of the Derivatives for Linear Combinations of Post–Widder Operators inLp

open access: yes, 1999
The aim of the paper is to characterize the global rate of approximation of derivativesf(l)through corresponding derivatives of linear combinations of Post–Widder operators in an appropriate weightedLp-metric using a weighted Ditzian and Totik modulus of
Li, Song, Wang, Ren Tai
core   +1 more source

Characterization Theorems for the Approximation by a Family of Operators [PDF]

open access: yes, 1996
The intention of this paper is to study a family of positive linear approximation operators relating to most of the well known Bernstein-type operators. These operators depend on a parameter.
Zhou, Ding X.   +3 more
core   +1 more source

Stancu-variant of generalized Baskakov operators

open access: yes, 2017
In the present paper, we introduce Stancu-variant of generalized Baskakov operators and study the rate of convergence using modulus of continuity, order of approximation for the derivative of function f .
Abdul Wafi, Nadeem Rao
core   +1 more source

Pointwise simultaneous approximation by combinations of Bernstein operators [PDF]

open access: yes, 2005
We prove in the present paper some new direct and inverse results on pointwise simultaneous approximation by combinations of Bernstein operators by using ωϕλ2r(f,t), where ωϕλ2r(f,t) is the Ditzian–Totik modulus of smoothness.
Xie, Linsen
core   +1 more source

I-approximation properties of certain class of linear positive operators

open access: yes, 2011
In this paper we studyI-approximation properties of certain class of linear positive operators. The two main tools used in this paper areI-convergence and Ditzian-Totik modulus of smoothness.
Nazim Mahmudov   +2 more
core   +1 more source

\(L^{p}\)-approximation \((p \geq 1)\) by Stancu-Kantorovich polynomials

open access: yesJournal of Numerical Analysis and Approximation Theory, 2002
We establish direct and converse estimates for a generalized Kantorovich polynomial operator depending on a positive parameter.
Zoltán Finta
doaj   +2 more sources

Approximation by Durrmeyer-type operators [PDF]

open access: yes, 1996
We define a new kind of Durrmeyer-type summation-integral operators and study a global direct theorem for these operators in terms of the Ditzian-Totik modulus of ...
Gupta, Vijay, Srivastava, G.
core  

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