Mathematics – Dynamical Systems
Scientific paper
2012-02-22
Mathematics
Dynamical Systems
Scientific paper
We give an application of a topological dynamics version of multidimensional Brown's lemma to tiling theory: given a tiling of an Euclidean space and a finite geometric pattern of points $F$, one can find a patch such that, for each scale factor $\lambda$, there is a vector $\vec{t}$ so that copies of this patch appear in the tilling "nearly" centered on $\lambda F+\vec{t}$ up to "bounded perturbations". Furthermore, we introduce a new unifying setting for the study of tiling spaces which allows rather general group "actions" and we discuss the local isomorphism property of tilings within this setting.
Pacheco Rui
Vilarinho Helder
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