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.
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页数：17
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