Baskakov operators and Jacobi weights: pointwise estimates

被引：4

作者：

Bustamante, Jorge ^{[1
]}

Merino-Garcia, Juan Jesus ^{[2
]}

Quesada, Jose Maria ^{[3
]}

机构：

[1] Benemerita Univ Autonoma Puebla, Fac Ciencias Fisicomatemat, Puebla, Mexico

[2] IES Juan Ramon Jimenez Moguer, Huelva, Spain

[3] Univ Jaen, Dept Math, Jaen, Spain

来源：

JOURNAL OF INEQUALITIES AND APPLICATIONS | 2021年 / 2021卷 / 01期

关键词：

Baskakov operators; Direct estimates; Jacobi weights; K-functionals; APPROXIMATION;

D O I：

10.1186/s13660-021-02653-4

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

In this paper we present direct results (upper estimates) for Baskakov operators acting in spaces related with Jacobi-type weights. Our results include and extend some known facts related with this problem. The approach is based in the use of a new pointwise K-functional.

引用

页数：17

共 22 条

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