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Funktsional'nyi Analiz i ego Prilozheniya, 2005, Volume 39, Issue 4, Pages 89–92
DOI: https://doi.org/10.4213/faa91
(Mi faa91)
 

Brief communications

The Exact Value of Normal Structure Coefficients and WCS coefficients in a Class of Orlicz Function Spaces

Ya. Q. Yan

Soochow University
References:
Abstract: Let $\Phi$ be an $N$-function. Then the normal structure coefficients $N$ and the weakly convergent sequence coefficients $WCS$ of the Orlicz function spaces $L^\Phi[0,1]$ generated by $\Phi$ and equipped with the Luxemburg and Orlicz norms have the following exact values. (i) If $F_\Phi(t)=t\varphi(t)/\Phi(t)$ is decreasing and $1<C_\Phi<2$ (where $C_\Phi=\lim_{t\to+\infty}t\varphi(t)/\Phi(t)$), then
$$ N(L^{(\Phi)}[0,1])=N(L^{\Phi}[0,1])=WCS(L^{(\Phi)}[0,1])=WCS(L^{\Phi}[0,1])=2^{1-1/C_\Phi}. $$
(ii) If $F_\Phi(t)$ is increasing and $C_\Phi>2$, then
$$ N(L^{(\Phi)}[0,1])=N(L^{\Phi}[0,1])=WCS(L^{(\Phi)}[0,1])=WCS(L^{\Phi}[0,1])=2^{1/C_\Phi}. $$
Keywords: Orlicz space, WCS coefficient, normal structure coefficient.
Received: 05.03.2004
English version:
Functional Analysis and Its Applications, 2005, Volume 39, Issue 4, Pages 321–323
DOI: https://doi.org/10.1007/s10688-005-0056-y
Bibliographic databases:
Document Type: Article
UDC: 512.54
Language: Russian
Citation: Ya. Q. Yan, “The Exact Value of Normal Structure Coefficients and WCS coefficients in a Class of Orlicz Function Spaces”, Funktsional. Anal. i Prilozhen., 39:4 (2005), 89–92; Funct. Anal. Appl., 39:4 (2005), 321–323
Citation in format AMSBIB
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\paper The Exact Value of Normal Structure Coefficients and WCS coefficients in a Class of Orlicz Function Spaces
\jour Funktsional. Anal. i Prilozhen.
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\issue 4
\pages 89--92
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\jour Funct. Anal. Appl.
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