English

Homeomorphic measures on stationary Bratteli diagrams

Dynamical Systems 2010-09-30 v2

Abstract

We study the set S of ergodic probability Borel measures on stationary non-simple Bratteli diagrams which are invariant with respect to the tail equivalence relation. Equivalently, the set S is formed by ergodic probability measures invariant with respect to aperiodic substitution dynamical systems. The paper is devoted to the classification of measures μ\mu from S with respect to a homeomorphism. The properties of these measures related to the clopen values set S(μ)S(\mu) are studied. It is shown that for every measure μ\mu in S there exists a subgroup G of R\mathbb R such that S(μ)S(\mu) is the intersection of G with [0,1], i.e. S(μ)S(\mu) is group-like. A criterion of goodness is proved for such measures. This result is used to classify the measures from S up to a homeomorphism. It is proved that for every good measure μ\mu in S there exist countably many measures {μi}iN\{\mu_i\}_{i\in \mathbb N} from S such that μ\mu and μi\mu_i are homeomorphic measures but the tail equivalence relations on corresponding Bratteli diagrams are not orbit equivalent.

Keywords

Cite

@article{arxiv.1008.0850,
  title  = {Homeomorphic measures on stationary Bratteli diagrams},
  author = {S. Bezuglyi and O. Karpel},
  journal= {arXiv preprint arXiv:1008.0850},
  year   = {2010}
}

Comments

36 pages, references added, typos fixed