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Invariant measures on stationary Bratteli diagrams
Journal article   Peer reviewed

Invariant measures on stationary Bratteli diagrams

S Bezuglyi, J Kwiatkowski, K Medynets and B Solomyak
Ergodic theory and dynamical systems, Vol.30(4), pp.973-1007
08/01/2010
DOI: 10.1017/S0143385709000443

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Abstract

We study dynamical systems acting on the path space of a stationary (non-simple) Bratteli diagram. For such systems we give an explicit description of all ergodic probability measures that are invariant with respect to the tail equivalence relation (or the Vershik map); these measures are completely described by the incidence matrix of the Bratteli diagram. Since such diagrams correspond to substitution dynamical systems, our description provides an algorithm for finding invariant probability measures for aperiodic non-minimal substitution systems. Several corollaries of these results are obtained. In particular, we show that the invariant measures are not mixing and give a criterion for a complex number to be an eigenvalue for the Vershik map.
Mathematics Mathematics, Applied Physical Sciences Science & Technology

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