Open Access
Winter 2015 Long turns, INP’s and indices for free group automorphisms
Thierry Coulbois, Martin Lustig
Illinois J. Math. 59(4): 1087-1109 (Winter 2015). DOI: 10.1215/ijm/1488186022

Abstract

The goal of this paper is to introduce a new tool, called long turns, which is a useful addition to the train track technology for automorphisms of free groups, in that it allows one to control periodic INPs in a train track map and hence the index of the induced automorphism.

Citation

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Thierry Coulbois. Martin Lustig. "Long turns, INP’s and indices for free group automorphisms." Illinois J. Math. 59 (4) 1087 - 1109, Winter 2015. https://doi.org/10.1215/ijm/1488186022

Information

Received: 2 May 2016; Revised: 12 May 2016; Published: Winter 2015
First available in Project Euclid: 27 February 2017

zbMATH: 1382.20029
MathSciNet: MR3628302
Digital Object Identifier: 10.1215/ijm/1488186022

Subjects:
Primary: 20E05 , 20E08 , 20F65 , 57R30

Rights: Copyright © 2015 University of Illinois at Urbana-Champaign

Vol.59 • No. 4 • Winter 2015
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