×

An exotic group with the Haagerup property. (English) Zbl 1311.20040

Summary: We prove the Haagerup property for an infinite discrete group constructed using surgery on a Euclidean Tits building of type \(\widetilde A_2\).

MSC:

20F65 Geometric group theory
20E42 Groups with a \(BN\)-pair; buildings
51E24 Buildings and the geometry of diagrams
PDF BibTeX XML Cite
Full Text: arXiv Euclid