Results 51 to 60 of about 495 (122)

Generalized p,q-Gamma-type operators

open access: yesJournal of Function Spaces, 2020
In the present paper, the generalized p,q-gamma-type operators based on p,q-calculus are introduced. The moments and central moments are obtained, and some local approximation properties of these operators are investigated by means of modulus of ...
Wen-Tao Cheng, Qing-Bo Cai
doaj   +1 more source

Approximation Properties of Parametric Kantorovich-Type Operators on Half-Bounded Intervals

open access: yesMathematics, 2023
The main purpose of this paper is to introduce a new family of parametric Kantorovichtype operators on the half-bounded interval. The convergence properties of these new operators are investigated.
Hui Dong, Qiulan Qi
doaj   +1 more source

Approximation by q-Szasz operators [PDF]

open access: yes, 2010
his paper deals with approximating properties of the newly defined $q$-generalization of the Sz\'{a}sz operators in the case $q>1$. Quantitative estimates of the convergence in the polynomial weighted spaces and the Voronovskaja's theorem are given.
Mahmudov, Nazim I.
core  

A Bernstein‐Like Trigonometric Basis: Properties, Curve Design, and Operator Construction

open access: yesJournal of Applied Mathematics, Volume 2025, Issue 1, 2025.
We introduce a novel family of trigonometric basis functions equipped with a shape parameter, analogous to Bernstein functions. These basis functions are employed to construct Bézier‐like curves, termed “trigo‐curves”, which retain the fundamental properties of classical Bézier curves while offering enhanced shape control through parameter adjustment ...
Jamshid Saeidian   +3 more
wiley   +1 more source

A summation-integral type modification of Szasz-Mirakjan-Stancu operators

open access: yesJournal of Numerical Analysis and Approximation Theory, 2016
In this paper we introduce a summation-integral type modification of Szasz-Mirakjan-Stancu operators. Calculation of moments, density theorem, a direct result and a Voronovskaja-type result are obtained for the operators.
Vishnu Narayan Mishra   +2 more
doaj   +2 more sources

Asymptotic expansions for variants of the gamma and Post–Widder operators preserving 1 and xj

open access: yesMathematical Methods in the Applied Sciences, Volume 47, Issue 18, Page 13718-13733, December 2024.
Recently, the authors constructed operators acting on a space of functions defined on [0,∞)$$ \left[0,\infty \right) $$ and preserving 1 and xj$$ {x}^j $$ for a given j∈ℕ$$ j\in \mathrm{\mathbb{N}} $$. To this end, they considered suitable modifications of the Post–Widder and gamma operators.
Ulrich Abel   +3 more
wiley   +1 more source

A Quantitative Variant of Voronovskaja's Theorem for King-Type Operators

open access: yesConstructive Mathematical Analysis, 2019
In this note we establish a quantitative Voronovskaja theorem for modified Bernstein polynomials using the first order Ditzian-Totik modulus  of smoothness.
openaire   +3 more sources

The Lower Estimate for Bernstein Operator [PDF]

open access: yes, 2013
MSC 2010: 41A10, 41A15, 41A25, 41A36For functions belonging to the classes C2[0; 1] and C3[0; 1], we establish the lower estimate with an explicit constant in approximation by Bernstein polynomials in terms of the second order Ditzian-Totik modulus of ...
Gal, Sorin G., Tachev, Gancho T.
core  

About Some Linear Operators

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2007
Using the method of Jakimovski and Leviatan from their work in 1969, we construct a general class of linear positive operators. We study the convergence, the evaluation for the rate of convergence in terms of the first modulus of smoothness and we give a
Ovidiu T. Pop
doaj   +1 more source

A note on the convergence of Phillips operators by the sequence of functions via q-calculus

open access: yesDemonstratio Mathematica, 2022
The basic aim of this study is to include nonnegative real parameters to allow for approximation findings of the Stancu variant of Phillips operators.
Kiliçman Adem   +2 more
doaj   +1 more source

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