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PreprintCC BY 4.0arXiv

Finite-index extensions of essentially free countable Borel equivalence relations

  • Jason Zesheng Chen
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Abstract

We show that finite-index extensions of essentially free countable Borel equivalence relations are essentially free, answering a question of Kechris.

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Cite

BibTeXRIS
BibTeX
@misc{chen2026finiteindex,
  title = {{Finite-index extensions of essentially free countable Borel equivalence relations}},
  author = {Jason Zesheng Chen},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.02997},
  eprint = {2609.02997},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.02997},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Finite-index extensions of essentially free countable Borel equivalence relations
AU  - Jason Zesheng Chen
PY  - 2026
DA  - 2026/09/17
PB  - arXiv
DO  - 10.48550/arxiv.2609.02997
UR  - https://arxiv.org/abs/2609.02997
AB  - We show that finite-index extensions of essentially free countable Borel equivalence relations are essentially free, answering a question of Kechris.
ER  -