English

Rigidity of Higson coronas

Logic 2025-02-17 v1 Metric Geometry Operator Algebras

Abstract

We show that under mild set theoretic hypotheses we have rigidity for algebras of continuous functions over Higson coronas, topological spaces arising in coarse geometry. In particular, we show that under OCA\mathsf{OCA} and MA1\mathsf {MA}_{\aleph_1}, if two uniformly locally finite metric spaces XX and YY have homeomorphic Higson coronas νX\nu X and νY\nu Y, then XX and YY are coarsely equivalent, a statement which provably does not follow from ZFC\mathsf{ZFC} alone.

Keywords

Cite

@article{arxiv.2502.10073,
  title  = {Rigidity of Higson coronas},
  author = {Alessandro Vignati},
  journal= {arXiv preprint arXiv:2502.10073},
  year   = {2025}
}

Comments

25 pages

R2 v1 2026-06-28T21:44:18.117Z