Combinatorics and topology of the Robinson tiling
  We study the space of all tilings which can be obtained using the Robinson tiles (this is a two-dimensional subshift of finite type). We prove that it has a unique minimal subshift, and describe it by means of a substitution. This description allows to compute its cohomology groups, and prove that it is a model set. 
Franz G\"ahler, Antoine Julien, Jean Savinien
math.DS math.CO