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ESSENTIALLY NORMALOID AND ESSENTIALLY CONVEXOID OPERATORS
http://hdl.handle.net/10131/5389
http://hdl.handle.net/10131/538929ab3c63-0be1-4ee4-b5a6-9eba31860069
名前 / ファイル | ライセンス | アクション |
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YMJ_26_N1_1978_055-059.pdf (420.9 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2009-12-15 | |||||
タイトル | ||||||
タイトル | ESSENTIALLY NORMALOID AND ESSENTIALLY CONVEXOID OPERATORS | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
Patel, S. M.
× Patel, S. M. |
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著者所属 | ||||||
Faculty of Mathematics, University of Delhi, Delhi-110007, India | ||||||
著者所属 | ||||||
Yokohama City University | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In this note some elementry facts on essentially normaloid and essentially convexoid operators are established. It is shown that (i) a nomaloid operator need not be essentially normaloid and vice versa, (ii) a paranormal operator is not essentially convexoid, (iii) the class of essentially normaloid operators is a closed nowhere dense subset of the algebra of operators, and (iv) for an essentially convexoid (essentially normaloid, essentially spectraloid) operator $T$, there exists a compact operator $K$ such that $T+K$ is convexoid (normaloid, spectraloid). | |||||
書誌情報 |
Yokohama Mathematical Journal = 横濱市立大學紀要. D部門, 数学 巻 26, p. 55-59, 発行日 1978 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00440523 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA0089285X | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |