Global and pointwise estimates for Müntz rational approximation(Müntz有理逼近的整体估计和点态估计)
利用K-泛函和光滑模,给出了连续函数和光滑函数的Müntz有理逼近的速度估计,得到了 一个融整体估计和点态估计为一体的Jackson型定理.进一步考虑了中有理函数对光滑函数的逼近,其逼近速度要优于通常的Müntz有理函数的逼近.
Main Authors: | , |
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Format: | Article |
Language: | zho |
Published: |
Zhejiang University Press
2014-03-01
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Series: | Zhejiang Daxue xuebao. Lixue ban |
Subjects: | |
Online Access: | https://doi.org/10.3785/j.issn.1008-9497.2014.02.004 |