HYPONORMAL TOEPLITZ-OPERATORS AND EXTREMAL PROBLEMS OF HARDY-SPACES

被引：80
作者：
NAKAZI, T
TAKAHASHI, K
机构：
来源：
TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY | 1993年 / 338卷 / 02期
关键词：
HYPONORMAL OPERATOR; SUBNORMAL OPERATOR; TOEPLITZ OPERATOR; HARDY SPACE; EXTREMAL PROBLEM;
D O I：
10.2307/2154427
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
The symbols of hyponormal Toeplitz operators are completely described and those are also studied, being related with the extremal problems of Hardy spaces. Moreover, we discuss Halmos's question about a subnormal Toeplitz operator when the self-commutator is finite rank.
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页码：753 / 767
页数：15
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