摘要
研究了一类Kantorovic型算子Pn^*(f,z)对不连续函数的逼近,给出了逼近阶的估计.
In this paper, the problems of convergence and approximation degree by a kind of generalized Kantorovich operators Pn^* (f, x) are studied,and the approximation degree is estimated.
作者
张婷
薛银川
Zhang Ting, Xue Yingchuan ( School of Mathematics and Computer Science, NingxiaUniversity, Yinchuan, Ningxia,750021)
出处
《绍兴文理学院学报(自然科学版)》
2006年第2期4-7,共4页
Journal of Shaoxing College of Arts and Sciences
基金
宁夏大学数学计算机学院科研基金项目(LG0506)
关键词
Kantorovic型算子
逼近
第一类间断点
有界变差函数
generalized Kantorovic operator
approximation
first discontinuous point
function of bounded variation