THE RUINOUS-THIN RELATIONSHIP FOR THREE ELEMENT SETS

DOI10.1142/S0218196708004500zbMath1183.43002OpenAlexW2033538994MaRDI QIDQ3521469

John R. Donnelly

Publication date: 26 August 2008

Published in: International Journal of Algebra and Computation (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1142/s0218196708004500

zbMATH Keywords

semigroupsbinary treethin setsamenabilityFølner setsRichard Thompson's group \(F\)ruinous setsbinary forest

Mathematics Subject Classification ID

Free semigroups, generators and relations, word problems (20M05) Special sets (thin sets, Kronecker sets, Helson sets, Ditkin sets, Sidon sets, etc.) (43A46) Groups acting on trees (20E08) Means on groups, semigroups, etc.; amenable groups (43A07)

Related Items (2)

\(S_{0,3}\) is non-ruinous ⋮ A Minimal Candidate for the Existence of a Weakly-Ruinous Set

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