Pointwise approximation of modified conjugate functions by matrix operators of their Fourier series

被引：2
|
作者：
Lenski, Wlodzimierz [1 ]
Szal, Bogdan [1 ]
机构：
[1] Univ Zielona Gora, Fac Math Comp Sci & Econometr, Ul Szafrana 4a, PL-65516 Zielona Gora, Poland
来源：
PROCEEDINGS OF THE ESTONIAN ACADEMY OF SCIENCES | 2018年 / 67卷 / 01期
关键词：
rate of approximation; summability; Fourier series; CONVERGENCE;
D O I：
10.3176/proc.2018.1.02
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
We extend the results presented by Xh. Z. Krasniqi (Slight extensions of some theorems on the rate of pointwise approximation of functions from some subclasses of L-p. Acta Comment. Univ. Tartu. Math., 2013, 17, 89-101) and W. Lenski and B. Szal (Approximation of functions belonging to the class L-p (omega) by linear operators. Acta Comment. Univ. Tartu. Math., 2009, 13, 11-24) to the case when a conjugate function depends on r and where in the measures of estimations r-differences of the entries are used.
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页码：50 / 60
页数：11
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