Approximation Properties of the Blending-Type Bernstein–Durrmeyer Operators

We construct the blending-type modified Bernstein–Durrmeyer operators and investigate their approximation properties. First, we derive the Voronovskaya-type asymptotic theorem for this type of operator. Then, the local and global approximation theorems are obtained by using the classical modulus of...

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Main Authors: Yu-Jie Liu, Wen-Tao Cheng, Wen-Hui Zhang, Pei-Xin Ye
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Axioms
Subjects:
Online Access:https://www.mdpi.com/2075-1680/12/1/5
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author Yu-Jie Liu
Wen-Tao Cheng
Wen-Hui Zhang
Pei-Xin Ye
author_facet Yu-Jie Liu
Wen-Tao Cheng
Wen-Hui Zhang
Pei-Xin Ye
author_sort Yu-Jie Liu
collection DOAJ
description We construct the blending-type modified Bernstein–Durrmeyer operators and investigate their approximation properties. First, we derive the Voronovskaya-type asymptotic theorem for this type of operator. Then, the local and global approximation theorems are obtained by using the classical modulus of continuity and <i>K</i>-functional. Finally, we derive the rate of convergence for functions with a derivative of bounded variation. The results show that the new operators have good approximation properties.
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spelling doaj.art-1afb44a7c55846dd9771df96ce799d642023-11-30T21:10:58ZengMDPI AGAxioms2075-16802022-12-01121510.3390/axioms12010005Approximation Properties of the Blending-Type Bernstein–Durrmeyer OperatorsYu-Jie Liu0Wen-Tao Cheng1Wen-Hui Zhang2Pei-Xin Ye3School of Mathematics and Physics, Anqing Normal University, Anqing 246133, ChinaSchool of Mathematics and Physics, Anqing Normal University, Anqing 246133, ChinaSchool of Mathematical Sciences and LPMC, Nankai University, Tianjin 300071, ChinaSchool of Mathematical Sciences and LPMC, Nankai University, Tianjin 300071, ChinaWe construct the blending-type modified Bernstein–Durrmeyer operators and investigate their approximation properties. First, we derive the Voronovskaya-type asymptotic theorem for this type of operator. Then, the local and global approximation theorems are obtained by using the classical modulus of continuity and <i>K</i>-functional. Finally, we derive the rate of convergence for functions with a derivative of bounded variation. The results show that the new operators have good approximation properties.https://www.mdpi.com/2075-1680/12/1/5modified Bernstein–Durrmeyer operatorsVoronovskaya-type theoremlocal approximationglobal approximation<i>K</i>-functionalmodulus of smoothness
spellingShingle Yu-Jie Liu
Wen-Tao Cheng
Wen-Hui Zhang
Pei-Xin Ye
Approximation Properties of the Blending-Type Bernstein–Durrmeyer Operators
Axioms
modified Bernstein–Durrmeyer operators
Voronovskaya-type theorem
local approximation
global approximation
<i>K</i>-functional
modulus of smoothness
title Approximation Properties of the Blending-Type Bernstein–Durrmeyer Operators
title_full Approximation Properties of the Blending-Type Bernstein–Durrmeyer Operators
title_fullStr Approximation Properties of the Blending-Type Bernstein–Durrmeyer Operators
title_full_unstemmed Approximation Properties of the Blending-Type Bernstein–Durrmeyer Operators
title_short Approximation Properties of the Blending-Type Bernstein–Durrmeyer Operators
title_sort approximation properties of the blending type bernstein durrmeyer operators
topic modified Bernstein–Durrmeyer operators
Voronovskaya-type theorem
local approximation
global approximation
<i>K</i>-functional
modulus of smoothness
url https://www.mdpi.com/2075-1680/12/1/5
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AT wentaocheng approximationpropertiesoftheblendingtypebernsteindurrmeyeroperators
AT wenhuizhang approximationpropertiesoftheblendingtypebernsteindurrmeyeroperators
AT peixinye approximationpropertiesoftheblendingtypebernsteindurrmeyeroperators