English

Classical actions of quantum permutation groups

Operator Algebras 2024-02-20 v3 Quantum Algebra

Abstract

We describe explicitly all actions of the quantum permutation groups on classical compact spaces. In particular, we show that the defining action is the only non-trivial ergodic one. We then extend these results to all easy quantum groups associated to non-crossing partitions.

Keywords

Cite

@article{arxiv.2306.17502,
  title  = {Classical actions of quantum permutation groups},
  author = {Amaury Freslon and Frank Taipe and Simeng Wang},
  journal= {arXiv preprint arXiv:2306.17502},
  year   = {2024}
}

Comments

21 pages. v2, v3: minor changes

R2 v1 2026-06-28T11:18:45.566Z