RATE OF CONVERGENCE FOR MEYER-KONIG AND ZELLER OPERATORS WITH JACOBI-WEIGHTS  

作　　者：SongRuying XuangPeicai 等 

机构地区：[1]TaiyuanTeachersCollege,China [2]ShaoxingCollegeofArtsandScience,China

出　　处：《Approximation Theory and Its Applications》2002年第3期52-64,共13页逼近论及其应用（英文版）

基　　金：Supported by the Shanxi Province Youth Foundation of China,Grant 20011005.

摘　　要：We point out that the Meyer-Konig and Zeller operator Mn (f;x) are unbounded in usual Jacobi weighted norm at first, and then we consider the weighted approximation by Mn(f;x) by a new norm and obtain the characterization of convergence rate in nonoptimal approximation by K-functional.We point out that the Meyer-Konig and Zeller operator Mn (f;x) are unbounded in usual Jacobi weighted norm at first, and then we consider the weighted approximation by Mn(f;x) by a new norm and obtain the characterization of convergence rate in nonoptimal approximation by K-functional.

分 类 号：O174.41[理学—数学] O177[理学—基础数学]