A quantitative asymptotic formula for a general class of discrete operators

被引:8
作者
Bardaro, Carlo [1 ]
Mantellini, Ilaria [1 ]
机构
[1] Univ Perugia, Dept Math & Informat, I-06123 Perugia, Italy
关键词
Voronovskaja type formula; Moments; Peetre K-functional; Discrete operators; LINEAR-OPERATORS; INTERPOLATION; SPACES;
D O I
10.1016/j.camwa.2010.09.043
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Here we give some quantitative versions of the Voronovskaja formula for a general class of discrete operators, not necessarily positive. Applications to various generalizations of the Szasz-Mirakjan operator and a Jackson type sampling operator are given. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2859 / 2870
页数:12
相关论文
共 29 条
[1]  
AGRATINI O., 2006, INT J MATH MATH SCI
[2]  
Albrycht J., 1960, ZESZYTY NAUKOWE UAM, V25, P3
[3]  
Altomare F., 1994, DEGRUYTER STUDIES MA, V17
[4]  
Anastassiou G.A., 2000, Approximation Theory
[5]  
[Anonymous], APPROXIMATION FUNCTI
[6]  
Bardaro C., 2007, Sampling Theory in Signal and Image Processing, V6, P29
[7]   A VORONOVSKAYA-TYPE THEOREM FOR A GENERAL CLASS OF DISCRETE OPERATORS [J].
Bardaro, Carlo ;
Mantellini, Ilaria .
ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2009, 39 (05) :1411-1442
[8]  
Beker M., 1978, INDIANA U MATH J, V27, P127
[9]  
Butzer P. L., 2009, COMM MATH, V49, P33
[10]  
Butzer P. L., 1993, SPRINGER TEXTS ELECT, P157