Title | On Musielak-Orlicz Sequence Spaces with an Asymptotic $\ell_\infty$ dual |
Publication Type | Journal Article |
Year of Publication | 2009 |
Authors | Zlatanov B. |
Journal | Annuaire de l’Université de Sofia “St. Kliment Ohridski”. Faculté de Mathématiques et Informatique |
Volume | 99 |
Keywords | asymptotic $\ell_\infty$ space, asymptotically isometric copy of $\ell_1$, fixed point property, Mushielak--Orlicz sequence spaces, weakly compact |
Abstract | We investigate Mushielak-Orlicz sequence spaces $\ell_\Phi$ with a dual $\ell_\Phi^{*}$, which is stabilized asymptotic $\ell_\infty$ with respect to the unit vector basis. We give a complete characterization of the bounded relatively weakly compact subsets $K\subset\ell_\Phi$. We prove that $\ell_\Phi$ is saturated with asymptotically isometric copies of $\ell_1$ and thus $\ell_\Phi$ fails the fixed point property for closed, bounded convex sets and non--expansive (or contractive) maps on them. |
2000 MSC | 46B20, 46B45, 46E30, 46A45, 47H10 |
Attachment | Size |
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99-203-214.pdf | 1.03 MB |