Eventually open action
โ Scribed by Barbara Majcher-Iwanow
- Book ID
- 102488189
- Publisher
- John Wiley and Sons
- Year
- 2012
- Tongue
- English
- Weight
- 149 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0044-3050
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
We study a natural subclass of continuous actions of Polish groups on Polish spaces which we call eventually open actions. We prove that this property characterizes the actions endowed with a complete system of hereditarily countable invariant structures introduced by Hjorth as a generalization of Scott sentences.
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