We're sorry but this page doesn't work properly without JavaScript enabled. Please enable it to continue.
Feedback

Topological entropies of subshift of finite type in amenable groups

Formal Metadata

Title
Topological entropies of subshift of finite type in amenable groups
Alternative Title
Topological entropies of SFTs in amenable groups
Title of Series
Number of Parts
15
Author
License
CC Attribution - NonCommercial - NoDerivatives 4.0 International:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
Publisher
Release Date
Language

Content Metadata

Subject Area
Genre
Abstract
Given a countable amenable group G one can ask which are the real numbers that can be realized as the topological entropy of a subshift of finite type (SFT). A famous result by Hochman and Meyerovitch completely characterizes these numbers for Z2. I will show that the same characterization is valid for any amenable group with decidable word problem which admits an action of Z2 which is free and bounded. Using this result we can give a full characterization of the entropies of SFTs for polycyclic groups. Furthermore, the same result holds for any countable group with decidable word problem which contains the direct product of any pair of infinite, finitely generated and amenable groups. In particular, it holds for many branch groups such as the Grigorchuk group.