论文信息 - Laminations, trees, and irreducible automorphisms of free groups

Laminations, trees, and irreducible automorphisms of free groups

Abstract. We examine the action of Out(Fn) on the set of (irreducible) laminations. Consequences include a special case of the Tits alternative for Out(Fn), the discreteness of certain naturally arising group actions on trees, and word hyperbolicity of certain semidirect products.

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