Published November 2000
| Published
Journal Article
Open
Coding Subset Shift by Subgroup Conjugacy
- Creators
- Gao, Su
Abstract
We present a Borel reduction from a subset shift equivalence relation of a countable group to a subgroup conjugacy relation of a free product. The technique gives a much shorter proof of an earlier result of Thomas and Velickovic.
Additional Information
© 2000 London Mathematical Society. Received 23 June 1999; revised 16 November 1999. I thank G. Hjorth, A. S. Kechris and S. Thomas for very helpful discussions on this subject, and the referee for suggestions to improve an earlier version of this paper. Finally, I should point out a very recent result of A. Andretta, R. Camerlo and G. Hjorth which states that if G is a countable group containing a nonabelian free subgroup, then Ec(G) is a universal countable Borel equivalence relation.Attached Files
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Additional details
- Eprint ID
- 28236
- Resolver ID
- CaltechAUTHORS:20111129-160227464
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2012-02-29Created from EPrint's datestamp field
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2021-11-09Created from EPrint's last_modified field