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Strength of convergence in the orbit space of a transformation group

Operator Algebras 2007-05-23 v1

Abstract

Let (G, X) be a second-countable transformation group with G acting freely on X. It is shown that measure-theoretic accumulation of the action and topological strength of convergence in the orbit space X/G provide equivalent ways of quantifying the extent of non-properness of the action. These notions are linked via the representation theory of the transformation-group C*-algebra.

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Cite

@article{arxiv.math/0508342,
  title  = {Strength of convergence in the orbit space of a transformation group},
  author = {Robert Archbold and Astrid an Huef},
  journal= {arXiv preprint arXiv:math/0508342},
  year   = {2007}
}

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27 pages