On invariant measures of finite affine type tilings

In this paper, we consider tilings of the hyperbolic 2-space ${\mathbb H}^2$, built with a finite number of polygonal tiles, up to affine transformation. To such a tiling $T$, we associate a space of tilings: the continuous hull $\Omega(T)$ on which the affine group acts. This space $\Omega(T)$ inhe...

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Bibliographic Details
Published in:Ergodic theory and dynamical systems 2006-08, Vol.26 (4), p.1159-1176
Main Author: PETITE, SAMUEL
Format: Article
Language:English
Subjects:
Dynamical Systems
Mathematics
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Summary:In this paper, we consider tilings of the hyperbolic 2-space ${\mathbb H}^2$, built with a finite number of polygonal tiles, up to affine transformation. To such a tiling $T$, we associate a space of tilings: the continuous hull $\Omega(T)$ on which the affine group acts. This space $\Omega(T)$ inherits a solenoid structure whose leaves correspond to the orbits of the affine group. First, we prove that the finite harmonic measures of this laminated space correspond to finite invariant measures for the affine group action. Then we give a complete combinatorial description of these finite invariant measures. Finally, we give examples with an arbitrary number of ergodic invariant probability measures.
ISSN:0143-3857
1469-4417
DOI:10.1017/S0143385706000137