摘要
给定M>0,设Λ={λn}n=1∞是一非负实数序列,满足λn+1-λn≥Mnlnn对所有的n≥1成立,本文给出了Müntz系统{xλn}的有理逼近在区间[0,1]之右端点1处的点态估计.
Given M 〉 0 suppose a nonnegative increasing sequence of real number A={λn}∞n=1 such that λn+1-λn≥Mn In n for all n≥1,the pointwise estimate near the endpoint 1 of the interval [0,1] for the rational approximation of Mfintz system {xan } is given.
出处
《应用泛函分析学报》
CSCD
2009年第2期151-157,共7页
Acta Analysis Functionalis Applicata
基金
浙江省高校重点扶植学科基金(浙教高科[2003]7号)
关键词
Müntz有理函数
逼近
点态估计
Müntz rational functions
approximation
pointwise estimate