On the best L2 -approximations of functions by using wavelets

We obtain the exact Jackson-type inequalities for approximations in L2 (R) of functions f∈ L2 (R) with the use of partial sums of the wavelet series in the case of the Meyer wavelets and the Shannon–Kotelnikov wavelets.

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Bibliographic Details
Date:2008
Main Authors: Babenko, V. F., Zhiganova, G. S., Бабенко, В. Ф., Жиганова, С. Г.
Format: Article
Language:Russian
English
Published: Institute of Mathematics, NAS of Ukraine 2008
Online Access:https://umj.imath.kiev.ua/index.php/umj/article/view/3229
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Journal Title:Ukrains’kyi Matematychnyi Zhurnal
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Ukrains’kyi Matematychnyi Zhurnal
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Summary:We obtain the exact Jackson-type inequalities for approximations in L2 (R) of functions f∈ L2 (R) with the use of partial sums of the wavelet series in the case of the Meyer wavelets and the Shannon–Kotelnikov wavelets.