APPROXIMATION OF BIVARIATE FUNCTIONS BY OPERATORS OF STANCU-HURWITZ TYPE

被引：0
|
作者：
Tascu, Ioana [1 ]
机构：
[1] North Univ Baia Mare, Dept Math & Comp Sci, Victoriei 76, Baia Mare 43012, Romania
来源：
FACTA UNIVERSITATIS-SERIES MATHEMATICS AND INFORMATICS | 2005年 / 20卷
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中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
The aim of this paper is to introduce and study a linear positive approximation operator of Stancu-Hurwitz type [1], depending on several non negative parameters, useful in the approximation of functions of two variables. The corresponding approximation formula (3.1) has the degree of exactness (1, 1). For the remainder of this formula we give several representations, by starting from a method of T. Popoviciu [7] for representation of the remainder term in linear approximation formulas, by using the divided differences.
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页码：33 / 39
页数：7
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