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A General Hewitt-Yosida Decomposition

Published online by Cambridge University Press:  20 November 2018

Tim Traynor*
Affiliation:
University of Windsor, Windsor, Ontario
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In 1952, E. Hewitt and K. Yosida [3] proved that a bounded, finitely additive real-valued set function has a unique representation as the sum of a countably additive function and a “purely finitely additive” function.

Below, using a variation of the Carathéodory process we give a suitable generalization to s-bounded vector-valued set functions. In fact, since the methods do not rely on scalar multiplication, we give the result for commutative Hausdorff topological groups.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1972

References

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