Rauzy fractals with countable fundamental group

Autor: Jolivet, Timo, Loridant, Benoît, Luo, Jun
Rok vydání: 2013
Předmět:
Zdroj: Journal of Fractal Geometry 1 (2014), no. 4, 427-447
Druh dokumentu: Working Paper
DOI: 10.4171/JFG/13
Popis: We prove that every free group of finite rank can be realized as the fundamental group of a planar Rauzy fractal associated with a 4-letter unimodular cubic Pisot substitution. This characterizes all countable fundamental groups for planar Rauzy fractals. We give an explicit construction relying on two operations on substitutions: symbolic splittings and conjugations by free group automorphisms.
Comment: 14 pages, v3 includes some corrections to match the published version
Databáze: arXiv