ON THE DIVERGENCE OF DOUBLE FOURIER-WALSH AND FOURIER-WALSH-KACZMARZ SERIES OF CONTINUOUS FUNCTIONS

被引:0
作者
Getsadze, R. [1 ]
机构
[1] Uppsala Univ, Dept Math, POB 480, S-75106 Uppsala, Sweden
基金
美国国家科学基金会;
关键词
Walsh system; double Fourier series; divergence a.e;
D O I
10.1007/s10474-020-01113-7
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We prove that there exists a continuous function on [0, 1]2, with a certain smoothness, whose double Fourier-Walsh series diverges on a set of positive measure by rectangles. Similar theorem is proved also for the double Walsh-Kaczmarz system.
引用
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页码:51 / 65
页数:15
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