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Title: Riesz angles of Orlicz sequence spaces (English)
Author: Yan, Ya Qiang
Language: English
Journal: Commentationes Mathematicae Universitatis Carolinae
ISSN: 0010-2628 (print)
ISSN: 1213-7243 (online)
Volume: 43
Issue: 1
Year: 2002
Pages: 133-147
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Category: math
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Summary: We introduce some practical calculation of the Riesz angles in Orlicz sequence spaces equipped with Luxemburg norm and Orlicz norm. For an $N$-function $\Phi(u)$ whose index function is monotonous, the exact value $a(l^{(\Phi)})$ of the Orlicz sequence space with Luxemburg norm is $a(l^{(\Phi)})=2^{\frac{1}{C^0_{\Phi}}}$ or $a(l^{(\Phi)})=\frac{\Phi^{-1}(1)}{\Phi^{-1}(\frac{1}{2})}$. The Riesz angles of Orlicz space $l^\Phi$ with Orlicz norm has the estimation $\max (2\beta^0_{\Psi}, 2\beta '_{\Psi})\leq a(l^{\Phi}) \leq\frac{2}{\theta^0_{\Phi}}$. (English)
Keyword: Orlicz space
Keyword: $N$-function
Keyword: index function
Keyword: Riesz angle
MSC: 46B45
MSC: 46E30
idZBL: Zbl 1090.46024
idMR: MR1903312
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Date available: 2009-01-08T19:20:12Z
Last updated: 2012-04-30
Stable URL: http://hdl.handle.net/10338.dmlcz/119305
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