AN ARGUMENT OF A FUNCTION IN H1/2

被引：0
|
作者：
Nakazi, Takahiko [1 ]
Yamamoto, Takanori [2 ]
机构：
[1] Hokusei Gakuen Univ, Sch Econ, Sapporo, Hokkaido 0048631, Japan
[2] Hokkai Gakuen Univ, Dept Math, Sapporo, Hokkaido 0628605, Japan
来源：
PROCEEDINGS OF THE EDINBURGH MATHEMATICAL SOCIETY | 2012年 / 55卷
关键词：
Hardy space; argument; boundary value;
D O I：
10.1017/S0013091509001023
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
Let H-1/2 be the Hardy space on the open unit disc. For two non-zero functions f and g in H-1/2, we study the relation between f and g when f/g >= 0 a. e. on. D. Then we generalize a theorem of Neuwirth and Newman and Helson and Sarason with a simple proof.
引用
收藏
页码：507 / 511
页数：5
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