Very small group actions on $\mathbb{R}$-trees and Dehn twist automorphisms

DOI10.1016/0040-9383(94)00038-MzbMath0844.20018OpenAlexW1979143164MaRDI QIDQ1897848

Publication date: 22 October 1995

Published in: Topology (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/0040-9383(94)00038-m

zbMATH Keywords

dynamics uniqueness finitely generated groups free groups mapping class groups conjugacy problem translation length functions induced actions group of outer automorphisms free $G$-actions Dehn twist automorphisms Dehn twist representations free simplicial actions simplicial $G$-actions small $G$-actions on $\mathbb{R}$-trees

Mathematics Subject Classification ID

Geometric group theory (20F65) Automorphisms of infinite groups (20E36) Free nonabelian groups (20E05) Free products of groups, free products with amalgamation, Higman-Neumann-Neumann extensions, and generalizations (20E06) Word problems, other decision problems, connections with logic and automata (group-theoretic aspects) (20F10) Groups acting on trees (20E08)

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Very small group actions on \(\mathbb{R}\)-trees and Dehn twist automorphisms