Geodesic
Introduction to a small cancellation theorem
Lamy, Stéphane1 ; Lonjou, Anne2
1 Institut de Mathématiques de Toulouse UMR 5219, Université de Toulouse, UPS F-31062 Toulouse Cedex 9, France
2 Departement Mathematik und Informatik, Universität Basel, Spiegelgasse 1, 4051 Basel, Switzerland
Confluentes Mathematici, Tome 13 (2021) no. 1, pp. 79-102.

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This note is intended as an introduction to two previous works respectively by Dahmani, Guirardel, Osin, and by Cantat, Lamy. We give two proofs of a Small Cancellation Theorem for groups acting on a simplicial tree. We discuss the application to the group of plane polynomial automorphisms over any ground field.

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DOI : 10.5802/cml.73
Classification : 20F06, 20E08, 14R10
Keywords: Small cancellation, group action on tree, polynomial automorphisms

Lamy, Stéphane 1 ; Lonjou, Anne 2

1 Institut de Mathématiques de Toulouse UMR 5219, Université de Toulouse, UPS F-31062 Toulouse Cedex 9, France
2 Departement Mathematik und Informatik, Universität Basel, Spiegelgasse 1, 4051 Basel, Switzerland
Licence : CC-BY-NC-ND 4.0
Droits d'auteur : Les auteurs conservent leurs droits 
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Lamy, Stéphane; Lonjou, Anne. Introduction to a small cancellation theorem. Confluentes Mathematici, Tome 13 (2021) no. 1, pp. 79-102. doi : 10.5802/cml.73. http://geodesic.mathdoc.fr/articles/10.5802/cml.73/

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