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Riesz Decompositions

Published online by Cambridge University Press:  20 November 2018

Alexander Nagel and
Walter Rudin
Alexander Nagel
Affiliation:
University of Wisconsin, Madison, Wisconsin
Walter Rudin
Affiliation:
University of Wisconsin, Madison, Wisconsin
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All functions mentioned in this paper will be real-valued. If f 1, f 2, g are nonnegative functions on a set S that satisfy g ≦ f 1 + f 2, the Riesz decomposition problem associated with these data is to find functions gi on S such that

The formula

always furnishes a solution. The problem becomes more interesting if one asks under what conditions one can find solutions that are, roughly speaking, as smooth as the data.

Information

Type
Research Article
Information
Canadian Journal of Mathematics , Volume 26 , Issue 3 , June 1974, pp. 753 - 760
Copyright
Copyright © Canadian Mathematical Society 1974

References

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