Boundary amenability of groups via ultrapowers

zbMath1447.46043arXiv1610.09276MaRDI QIDQ5206538

Isaac Goldbring, Stephen Avsec

Publication date: 18 December 2019

Full work available at URL: https://arxiv.org/abs/1610.09276

zbMATH Keywords

Stone-Čech compactificationboundary amenability\(C^*\)-algebra ultrapowers

Mathematics Subject Classification ID

Ultraproducts in functional analysis (46M07) General theory of (C^*)-algebras (46L05) Extensions of spaces (compactifications, supercompactifications, completions, etc.) (54D35) Means on groups, semigroups, etc.; amenable groups (43A07)

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