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Note on Near Subnormal Weighted Shifts

Wang Gongbao·Ma Jipu
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Abstract

In this note, necessary and sufficient conditions are obtained for unilateral weighted shifts to be near subnormal . As an application of the main results, many answers to the Hilbert space problem 160 are presented at the end of the paper.

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Wang Gongbao, Ma Jipu. 2003-02-22. Note on Near Subnormal Weighted Shifts. https://arxiv.org/abs/math/0302274

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