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The Structure of Lattice-Subspaces
Authors:Polyrakis  Ioannis A
Institution:(1) Department of Mathematics, National Technical University of Athens, Zographou 157 80, Athens, Greece
Abstract:In Polyrakis (1983; Math. Proc. Cambridge Phil. Soc. 94, 519) it is proved that each infinite-dimensional, closed lattice-subspace of . . .1 is order-isomorphic to . . .1 and in Polyrakis (1987; Math. Anal. Appl. 184, 1) that each separable Banach lattice is order isomorphic to a closed lattice-subspace of C0,1]. Therefore . . .1 contains only one lattice-subspace but C0,1] contains all the separable Banach lattices. In the first section of this article we study the kind of the order embeddability of a separable Banach lattice in C0,1]. We show that the AM spaces have the ``best' behavior and the AL-spaces the ``worst'. In the second section we prove that the closure of a lattice-subspace is not necessarily a lattice-subspace and in the least one we study lattice-subspaces with positive bases.
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