Large normalizers of ${\mathbb Z}^{d}$-odometers systems and realization on substitutive subshifts
Abstract
For a -topological dynamical system , an isomomorphism is a self-homeomorphism such that for some matrix and any , , where denote the self-homeomorphism of given by the action of . The collection of all the isomorphisms forms a group that is the normalizer of the set of transformations . In the one-dimensional case, isomorphisms correspond to the notion of flip conjugacy of dynamical systems and by this fact are also called reversing symmetries. These isomorphisms are not well understood even for classical systems. We present a description of them for odometers and more precisely for constant-base -odometers, which is surprisingly not simple. We deduce a complete description of the isomorphisms of some minimal -substitutive subshifts. This enables us to provide the first example known of a minimal zero-entropy subshift with the largest possible normalizer group.
Keywords
Cite
@article{arxiv.2309.10156,
title = {Large normalizers of ${\mathbb Z}^{d}$-odometers systems and realization on substitutive subshifts},
author = {Christopher Cabezas and Samuel Petite},
journal= {arXiv preprint arXiv:2309.10156},
year = {2024}
}
Comments
30 pages, 4 figures