On a Generalization of the Köthe Coordinated Spaces

J. L. B. Cooper

A chapter in Contributions to Functional Analysis, 1966, pp 351-363 from Springer

Abstract: Abstract The theory of sequence spaces introduced by Köthe and Toeplitz [11] and extensively developed by Köthe (see e.g. [12] or [13] for a full bibliography) has on the one hand given rise to theorems which have taken their place in the general theory of linear topological spaces and on the other hand led to generalizations of a more special nature in which the spaces considered and their duals consist of classes of integrable functions, for example the “espaces de Köthe” of Diexjdonné [6], the Banach function spaces studied by Luxemburg and Zaanen ([14] and particularly [15] for full bibliography) and by Ellis and Halperin [9]. The present author has studied a generalization of these spaces which takes as their characteristic feature the existence in them of a Boolean algebra of projectors and the fact that the elements of the dual are defined by the fact that they generate functions on this algebra continuous in topologies of a certain type. The other motivation of this theory is the theory of spectral multiplicity in Hilbert spaces [10], which suggests considering cases in which the topology on the Boolean algebra is generated by a noncountable family of measures. Such topologies are studied in [4] and the corresponding spaces in [5] for the case in which the algebras and the measures are countably complete and additive.

Keywords: Boolean Algebra; Uniform Convergence; Strong Topology; Mesh Topology; Banach Function Space (search for similar items in EconPapers)
Date: 1966
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DOI: 10.1007/978-3-642-85997-7_23

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