XXXV Workshop on Geometric Methods in Physics | 26.06-2.07.2016 |

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## Pierre-Henry Collin## C*-algebras of Penrose type hyperbolic tilingsOne can construct an euclidian tilings using substitutions. I will explain how you use substitutions to construct tilings on PoincarĂ© half-plane. Using canonical actions on tilings, one can then introduce C*-algebras of tilings space. I will then explain how the hyperbolic situation is related to the euclidian one. |

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