QUASINILPOTENCY OF UNICELLULAR WEIGHTED SHIFT OPERATORS

被引：0
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作者：
吕方
机构：
[1] Department of Mathematics
[2] Liaoning University
[3] Shenyang 110036
[4] PRC
来源：
ChineseScienceBulletin | 1990年 / 06期
关键词：
this; QUASINILPOTENCY OF UNICELLULAR WEIGHTED SHIFT OPERATORS;
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摘要：
Let H be a separable complex Hilbert space. In 1968, P. Rosenthal asked whether the spectrum of every unicellular operator on H is a singleton set. After four years, Foias and Williams gave a negative answer to it. However, it was still unsolved whether the prob-
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页码：519 / 520
页数：2
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