| Title:
             | 
On the $\Cal L$-characteristic of fractional powers of linear operators (English) | 
| Author:
             | 
Appell, Jürgen | 
| Author:
             | 
Simões, Marilda A. | 
| Author:
             | 
Zabrejko, Petr P. | 
| Language:
             | 
English | 
| Journal:
             | 
Commentationes Mathematicae Universitatis Carolinae | 
| ISSN:
             | 
0010-2628 (print) | 
| ISSN:
             | 
1213-7243 (online) | 
| Volume:
             | 
35 | 
| Issue:
             | 
1 | 
| Year:
             | 
1994 | 
| Pages:
             | 
21-34 | 
| . | 
| Category:
             | 
math | 
| . | 
| Summary:
             | 
We describe the geometric structure of the ${\Cal L}$-characteristic of fractional powers of bounded or compact linear operators over domains with arbitrary measure. The description builds essentially on the Riesz-Thorin and Marcinkiewicz-Stein-Weiss-\linebreak Ovchinnikov interpolation theorems, as well as on the Krasnosel'skij-Krejn factorization theorem. (English) | 
| Keyword:
             | 
fractional powers of operators | 
| Keyword:
             | 
$L$-characteristic | 
| Keyword:
             | 
Lebesgue spaces | 
| Keyword:
             | 
interpolation theorems | 
| MSC:
             | 
46E30 | 
| MSC:
             | 
46M35 | 
| MSC:
             | 
47A57 | 
| MSC:
             | 
47A60 | 
| MSC:
             | 
47A99 | 
| MSC:
             | 
47B37 | 
| MSC:
             | 
47B38 | 
| idZBL:
             | 
Zbl 0806.47014 | 
| idMR:
             | 
MR1292579 | 
| . | 
| Date available:
             | 
2009-01-08T18:08:21Z | 
| Last updated:
             | 
2012-04-30 | 
| Stable URL:
             | 
http://hdl.handle.net/10338.dmlcz/118637 | 
| . | 
| Reference:
             | 
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| Reference:
             | 
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| Reference:
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| Reference:
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| Reference:
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| Reference:
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| Reference:
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| Reference:
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| Reference:
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| Reference:
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| Reference:
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| Reference:
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| Reference:
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| . |