Boundary 𝐶*-algebras for acylindrical groups

Autor: Guyan Robertson
Rok vydání: 2008
Předmět:
Zdroj: Proceedings of the American Mathematical Society. 136:3851-3860
ISSN: 1088-6826
0002-9939
DOI: 10.1090/s0002-9939-08-09453-7
Popis: Let Δ \Delta be an infinite, locally finite tree with more than two ends. Let Γ > Aut ⁡ ( Δ ) \Gamma >\operatorname {Aut}(\Delta ) be an acylindrical uniform lattice. Then the boundary algebra A Γ = C ( ∂ Δ ) ⋊ Γ \mathcal {A}_\Gamma = C(\partial \Delta )\rtimes \Gamma is a simple Cuntz-Krieger algebra whose K-theory is determined explicitly.
Databáze: OpenAIRE