On Lp-approximation by Mütz rational functions(Müntz有理函数的加权Lp逼近)

考察了加Jacobi权w(x)=xα(1-x)α(α≥0)的Lp空间中Müntz有理函数的逼近问题.利用K-泛函与加权光滑模的等价性给出了逼近阶的估计以及Ditzian-Totik型定理.所得结果将已有文献中的相应结论推广到了加权情形.

Bibliographic Details
Main Authors:	WANGJunxia(王军霞), LIGuocheng(李国成)
Format:	Article
Language:	zho
Published:	Zhejiang University Press 2017-11-01
Series:	Zhejiang Daxue xuebao. Lixue ban
Subjects:	加权lp逼近 müntz有理函数逼近速度
Online Access:	https://doi.org/10.3785/j.issn.1008-9497.2017.06.010

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