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Measures on Locally Compact Spaces

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Part of the Lecture Notes in Mathematics book series (LNM,volume 1964)

This final chapter of the book is concerned with topological measure theory and integral representation. The domain X of the operator-valued measure θ will be a locally compact topological space and the σ-ring \(\Re \) will consist of all relatively compact Borel subsets of X. As usual, measures on topological spaces are supposed to fulfill certain regularity requirements. Sections 1 and 2 of this chapter will probe different notions of continuity for locally convex cone-valued functions on a topological space. Inductive limit-type topologies lead to the identification of certain cones of continuous functions. This is motivated by the concept of weighted spaces of continuous real-valued functions which is due to Nachbin and Prolla. Continuous linear operators on such cones of cone-valued functions will be investigated in Section 4. The main result is a generalized Riesz-type integral representation theorem for this type of operators in Section 5. Section 6 contains a long list of special cases and examples, including a generalization of the classical Spectral representation theorem for normal linear operators on a complex Hilbert space.

Generally, the notations introduced in Chapters I and II will be used. As usual, for a subset Y of a topological space X, the sets \(\overline {Y},\,Y^\circ \) and \(\partial Y = \overline {Y}\backslash Y^\circ\) denote its topological closure, interior and boundary in X, respectively. The core support of a cone-valued function f on X is the set \(\{ x \in X\ |\ f(x) \ne 0\} \) and denoted by supp*(f). Its closure, supp(f) is the usual support of f.

Keywords

  • Convex Cone
  • Compact Space
  • Inductive Limit
  • Continuous Linear Operator
  • Topological Algebra

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© 2009 Springer-Verlag Berlin Heidelberg

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(2009). Measures on Locally Compact Spaces. In: Operator-Valued Measures and Integrals for Cone-Valued Functions. Lecture Notes in Mathematics, vol 1964. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-87565-9_4

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