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Measure Theory pp 266-289 | Cite as

Measure and Topology in Groups

  • Paul R. Halmos
Part of the Graduate Texts in Mathematics book series (GTM, volume 18)

Abstract

In the preceding chapter we showed that in every locally compact group it is possible to introduce a left invariant Baire measure (or a left invariant, regular Borel measure) in an essentially unique manner. In this chapter we shall show that there are very close connections between the measure theoretic and the topological structures of such a group. In particular, in this section we shall establish some of the many results whose total effect is the assertion that not only is the measure determined by the topology, but that, conversely, all topological concepts may be described in measure theoretic terms. Throughout this section we shall assume that

X is a locally compact topological group, μ is a regular Haar measure on X, and ρ(E,F) = μ(E Δ F) for any two Borel sets E and F.

Keywords

Positive Measure Haar Measure Quotient Group Finite Measure Measurable Group 
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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Copyright information

© Springer Science+Business Media New York 1950

Authors and Affiliations

  • Paul R. Halmos

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