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| 一类可逆的弱次正规算子的幂 | |
| 作者姓名： | 杨长森 |
| 作者单位： | Dept.ofMath.,HenannormalUniversity,Xinxiang453002,China. |
| 摘 要： | It is known that the square of a ω- hyponormal operator is also ω- hyponormal. In this note it is showed that there exists an invertible operator which is not log-hyponormal but its integer powers are all ω-hyponormal. |
| 关 键 词： | 弱次 正规算子 幂 逆 |
| 收稿时间： | 2003-06-23 |
| 本文献已被 维普 万方数据 SpringerLink 等数据库收录！ | |