Asymptotic Formulae for Linear Combinations of Generalized Sampling Operators

被引:33
作者
Bardaro, Carlo [1 ]
Mantellini, Ilaria [1 ]
机构
[1] Univ Perugia, Dept Math & Informat, I-06123 Perugia, Italy
来源
ZEITSCHRIFT FUR ANALYSIS UND IHRE ANWENDUNGEN | 2013年 / 32卷 / 03期
关键词
Voronovskaja-type formula; moments; generalized sampling operators; K-functional; APPROXIMATION; THEOREMS;
D O I
10.4171/ZAA/1485
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We give some Voronovskaja formula for linear combinations of generalized sampling operators and we furnish also a quantitative version in terms of the classical Peetre K-functional. This provides a better order of approximation in the asymptotic formula. We apply the general theory to various kernels: Bochner-Riesz kernel, translates of B-splines and Jackson type kernel.
引用
收藏
页码:279 / 298
页数:20
相关论文
共 30 条
[1]  
Altomare F., 2010, SURVEYS APPROXIMATIO, V6, P92
[2]  
Anastassiou G.A., 2000, Approximation Theory
[3]   Uniform convergence with rates for smooth Poisson-Cauchy-type singular integral operators [J].
Anastassiou, George A. ;
Mezei, Razvan A. .
MATHEMATICAL AND COMPUTER MODELLING, 2009, 50 (11-12) :1553-1570
[4]  
Bardaro C., 2007, Sampling Theory in Signal and Image Processing, V6, P29
[5]  
Bardaro C., 2011, East J. Approx., V17, P181
[6]   On the Iterates of Mellin-Fejer Convolution Operators [J].
Bardaro, Carlo ;
Mantellini, Ilaria .
ACTA APPLICANDAE MATHEMATICAE, 2012, 121 (01) :213-229
[7]   On Voronovskaja formula for linear combinations of Mellin-Gauss-Weierstrass operators [J].
Bardaro, Carlo ;
Mantellini, Ilaria .
APPLIED MATHEMATICS AND COMPUTATION, 2012, 218 (20) :10171-10179
[8]   ON CONVERGENCE PROPERTIES FOR A CLASS OF KANTOROVICH DISCRETE OPERATORS [J].
Bardaro, Carlo ;
Mantellini, Ilaria .
NUMERICAL FUNCTIONAL ANALYSIS AND OPTIMIZATION, 2012, 33 (04) :374-396
[9]   Approximation properties for linear combinations of moment type operators [J].
Bardaro, Carlo ;
Mantellini, Ilaria .
COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2011, 62 (05) :2304-2313
[10]   A quantitative asymptotic formula for a general class of discrete operators [J].
Bardaro, Carlo ;
Mantellini, Ilaria .
COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2010, 60 (10) :2859-2870