Cohomological dimension and symmetric automorphisms of a free group.
Donald J. Collins (1989)
Commentarii mathematici Helvetici
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Donald J. Collins (1989)
Commentarii mathematici Helvetici
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Dusa McDuff, Pierre De La Harpe (1983)
Commentarii mathematici Helvetici
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Alexandre Kurth (1997)
Manuscripta mathematica
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Ernst A. Ruh, Hans-Christoph Im Hof (1975)
Commentarii mathematici Helvetici
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J.Y. le Dimet (1992)
Commentarii mathematici Helvetici
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Shing-Tung Yau, W.H. Meeks III (1981)
Commentarii mathematici Helvetici
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Stephen P. Humphries (1992)
Mathematische Zeitschrift
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Cohn, P. (2002)
Serdica Mathematical Journal
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The theorem of Czerniakiewicz and Makar-Limanov, that all the automorphisms of a free algebra of rank two are tame is proved here by showing that the group of these automorphisms is the free product of two groups (amalgamating their intersection), the group of all affine automorphisms and the group of all triangular automorphisms. The method consists in finding a bipolar structure. As a consequence every finite subgroup of automorphisms (in characteristic zero) is shown to be conjugate...
Mladen Bestvina (2011)
Fundamenta Mathematicae
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Using Lipschitz distance on Outer space we give another proof of the train track theorem.
Antonio Vidal (1988)
Publicacions Matemàtiques
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We work in the smooth category: manifolds and maps are meant to be smooth. Let G be a finite group acting on a connected closed manifold X and f an equivariant self-map on X with f|A fixpointfree, where A is a closed invariant submanifold of X with codim A ≥ 3. The purpose of this paper is to give a proof using obstruction theory of the following fact: If X is simply connected and the action of G on X - A is free, then f is equivariantly deformable rel. A to fixed...
Bruno Zimmermann, Shicheng Wang (1994)
Mathematische Zeitschrift
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Gilbert Baumslag, Peter B. Shalen (1990)
Commentarii mathematici Helvetici
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