On unboundedness of maximal operators for directional hilbert transforms

被引:22
|
作者
Karagulyan, G. A. [1 ]
机构
[1] Armenian Natl Acad Sci, Inst Math, Yerevan 375019, Armenia
关键词
hilbert transform; maximal function;
D O I
10.1090/S0002-9939-07-08731-X
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We show that for any infinite set of unit vectors U in R-2 the maximal operator defined by H(U)f(x) = sup u is an element of U vertical bar pv integral(infinity)(-infinity) f(x - tu)/t dt vertical bar, x is an element of R-2, is not bounded in L-2(R-2).
引用
收藏
页码:3133 / 3141
页数:9
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