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Spear Operators Between Banach Spaces / by Vladimir Kadets, Miguel Martín, Javier Merí, Antonio Pérez
(Lecture Notes in Mathematics. ISSN:16179692 ; 2205)
版 | 1st ed. 2018. |
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出版者 | Cham : Springer International Publishing : Imprint: Springer |
出版年 | 2018 |
本文言語 | 英語 |
大きさ | XVII, 164 p. 5 illus : online resource |
著者標目 | *Kadets, Vladimir author Martín, Miguel author Merí, Javier author Pérez, Antonio author SpringerLink (Online service) |
件 名 | LCSH:Mathematical analysis FREE:Analysis |
一般注記 | 1. Introduction -- 2. Spear Vectors and Spear Sets -- 3. Spearness, the aDP and Lushness -- 4. Some Examples in Classical Banach Spaces -- 5. Further Results -- 6. Isometric and Isomorphic Consequences -- 7. Lipschitz Spear Operators -- 8. Some Stability Results -- 9. Open Problems This monograph is devoted to the study of spear operators, that is, bounded linear operators $G$ between Banach spaces $X$ and $Y$ satisfying that for every other bounded linear operator $T:X\longrightarrow Y$ there exists a modulus-one scalar $\omega$ such that $\/G + \omega\,T\/=1+ \/T\/$. This concept extends the properties of the identity operator in those Banach spaces having numerical index one. Many examples among classical spaces are provided, being one of them the Fourier transform on $L_1$. The relationships with the Radon-Nikodým property, with Asplund spaces and with the duality, and some isometric and isomorphic consequences are provided. Finally, Lipschitz operators satisfying the Lipschitz version of the equation above are studied. The book could be of interest to young researchers and specialists in functional analysis, in particular to those interested in Banach spaces and their geometry. It is essentially self-contained and only basic knowledge of functional analysis is needed HTTP:URL=https://doi.org/10.1007/978-3-319-71333-5 |
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電子ブック | オンライン | 電子ブック |
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Springer eBooks | 9783319713335 |
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EB00223730 |
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データ種別 | 電子ブック |
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分 類 | LCC:QA299.6-433 DC23:515 |
書誌ID | 4000114918 |
ISBN | 9783319713335 |
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