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A Domain-Theoretic Approach to Integration in Hausdorff Spaces

Published online by Cambridge University Press:  01 February 2010

J. D. Howroyd
J. D. Howroyd
Affiliation:
Department of Mathematics, Goldsmiths College, University of London, New Cross, London SE14 6NW, j.howroyd@gold.ac.uk, http://homepages.gold.ac.uk/jhowroyd/

Abstract

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In this paper we generalize the construction of a domain-theoretic integral, introduced by Professor Abbas Edalat, in locally compact separable Hausdorff spaces, to general Hausdorff spaces embedded in a domain. Our main example of such spaces comprises general metric spaces embedded in the rounded ideal completion of the partially ordered set of formal balls. We go on to discuss analytic subsets of a general Hausdorff space, and give a sufficient condition for a measure supported on an analytic set to be approximated by a sequence of simple valuations. In particular, this condition is always satisfied in a metric space embedded in the rounded ideal completion of its formal ball space. We finish with a comments section, where we highlight some potential areas for future research and discuss some questions of computability.

Type
Research Article
Information
LMS Journal of Computation and Mathematics , Volume 3 , 2000 , pp. 229 - 273
Copyright
Copyright © London Mathematical Society 2000

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