Approximation Order for Multivariate Durrmeyer Operators with Jacobi Weights

Using the equivalence relation between K-functional and modulus of smoothness, we establish a strong direct theorem and an inverse theorem of weak type for multivariate Bernstein-Durrmeyer operators with Jacobi weights on a simplex in this paper. We also obtain a characterization for multivariate Be...

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Main Authors: Jianjun Wang, Chan-Yun Yang, Shukai Duan
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/2011/970659
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author Jianjun Wang
Chan-Yun Yang
Shukai Duan
author_facet Jianjun Wang
Chan-Yun Yang
Shukai Duan
author_sort Jianjun Wang
collection DOAJ
description Using the equivalence relation between K-functional and modulus of smoothness, we establish a strong direct theorem and an inverse theorem of weak type for multivariate Bernstein-Durrmeyer operators with Jacobi weights on a simplex in this paper. We also obtain a characterization for multivariate Bernstein-Durrmeyer operators with Jacobi weights on a simplex. The obtained results not only generalize the corresponding ones for Bernstein-Durrmeyer operators, but also give approximation order of Bernstein-Durrmeyer operators.
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publishDate 2011-01-01
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spelling doaj-art-913d50e7792249adbdcb4e9465ca2fe72025-08-20T02:09:43ZengWileyAbstract and Applied Analysis1085-33751687-04092011-01-01201110.1155/2011/970659970659Approximation Order for Multivariate Durrmeyer Operators with Jacobi WeightsJianjun Wang0Chan-Yun Yang1Shukai Duan2School of Mathematics and Statistics, Southwest University, Chongqing 400715, ChinaDepartment of Mechanical Engineering, Technology and Science Institute of Northern Taiwan, No. 2 Xue-Yuan Road, Beitou, Taipei 112, TaiwanSchool of Electronics and Information Engineering, Southwest University, Chongqing 400715, ChinaUsing the equivalence relation between K-functional and modulus of smoothness, we establish a strong direct theorem and an inverse theorem of weak type for multivariate Bernstein-Durrmeyer operators with Jacobi weights on a simplex in this paper. We also obtain a characterization for multivariate Bernstein-Durrmeyer operators with Jacobi weights on a simplex. The obtained results not only generalize the corresponding ones for Bernstein-Durrmeyer operators, but also give approximation order of Bernstein-Durrmeyer operators.http://dx.doi.org/10.1155/2011/970659
spellingShingle Jianjun Wang
Chan-Yun Yang
Shukai Duan
Approximation Order for Multivariate Durrmeyer Operators with Jacobi Weights
Abstract and Applied Analysis
title Approximation Order for Multivariate Durrmeyer Operators with Jacobi Weights
title_full Approximation Order for Multivariate Durrmeyer Operators with Jacobi Weights
title_fullStr Approximation Order for Multivariate Durrmeyer Operators with Jacobi Weights
title_full_unstemmed Approximation Order for Multivariate Durrmeyer Operators with Jacobi Weights
title_short Approximation Order for Multivariate Durrmeyer Operators with Jacobi Weights
title_sort approximation order for multivariate durrmeyer operators with jacobi weights
url http://dx.doi.org/10.1155/2011/970659
work_keys_str_mv AT jianjunwang approximationorderformultivariatedurrmeyeroperatorswithjacobiweights
AT chanyunyang approximationorderformultivariatedurrmeyeroperatorswithjacobiweights
AT shukaiduan approximationorderformultivariatedurrmeyeroperatorswithjacobiweights