Tilings of amenable groups
Group Theory
2015-02-10 v1
Abstract
We prove that for any infinite countable amenable group , any and any finite subset , there exists a tiling (partition of into finite "tiles" using only finitely many "shapes"), where all the tiles are -invariant. Moreover, our tiling has topological entropy zero (i.e., subexponential complexity of patterns). As an application, we construct a free action of (in the sense that the mappings, associated to different from unity elements of , have no fixpoints), on a zero-dimensional space, and which has topological entropy zero.
Keywords
Cite
@article{arxiv.1502.02413,
title = {Tilings of amenable groups},
author = {Tomasz Downarowicz and Dawid Huczek and Guohua Zhang},
journal= {arXiv preprint arXiv:1502.02413},
year = {2015}
}
Comments
23 pages