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Estimate of the simultaneous approximation of functions and their derivatives by Fourier sums.

Authors :
Telyakovskii, S.
Source :
Mathematical Notes. Oct2011, Vol. 90 Issue 3/4, p464-466. 3p.
Publication Year :
2011

Abstract

The article presents a mathematical problem that uses Fourier sums to estimate simultaneous approximation of functions and their derivatives. It discusses the problem of simultaneous approximations in C of functions of class Wrr H[ω] and their derivatives by fourier sums. It adds that the numbers k1, k2.. km must be integers.

Details

Language :
English
ISSN :
00014346
Volume :
90
Issue :
3/4
Database :
Academic Search Index
Journal :
Mathematical Notes
Publication Type :
Academic Journal
Accession number :
66904048
Full Text :
https://doi.org/10.1134/S0001434611090173