Approximation Properties of Newman Type Interpolation Rational Functions with Fewer Nodes  

作　　者：Laiyi Zhu Xingjun Zhao 

机构地区：[1]School of Mathematics,Renmin University of China,Beijing 100872,China

出　　处：《Analysis in Theory and Applications》2023年第4期378-384,共7页分析理论与应用（英文刊）

基　　金：supported by the National Nature Science Foundation of China(No.11571362);Fundamental Research Funds for the Central Universities(No.2652018054).

摘　　要：In the present note,we consider the problem:how many interpolation nodes can be deleted from the Newman-type rational function such that the convergence rate still achieve.

关 键 词：Rational function approximation Newman-type rational approximation interpolation nodes convergence rate 

分 类 号：O174.21[理学—数学]