ON SOME SHARP CONDITIONS FOR GENERALIZED ABSOLUTE CONVERGENCE OF FOURIER SERIES

被引:0
|
作者
Golubov, Boris [1 ]
Volosivets, Sergey [2 ]
机构
[1] Moscow Inst Phys & Technol, 9 Inst Skaya Str, Dolgoprudnyi, Moscow Region, Russia
[2] Saratov NG Chernyshevskii State Univ, Dept Mech & Math, 83 Astrakhanskaya Str, Saratov 410012, Russia
关键词
Trigonometric Fourier series; General orthonormal systems; Generalized absolute convergence;
D O I
暂无
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In the present paper,we give some sufficient conditions for generalized absolute convergence of trigonometric Fourier series in terms of L-p and p-variational best approximations or moduli of smoothness and prove their sharpness. Similar conditions for an arbitrary orthonormal system in L-2[0, 1] are considered.
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页码:347 / 355
页数:9
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