Institut de Mathématiques de Luminy, UPR 9016, Case 907, 163 avenue de Luminy, 13288 Marseille Cedex 9, France ; Institut de Mathématiques de Luminy, UPR 9016, Case 907, 163 avenue de Luminy, 13288 Marseille Cedex 9, France
Abstract:
We prove that a substitutive dynamical system of Pisot type contains a factor which is isomorphic to a minimal rotation on a torus. If the substitution is unimodular and satisfies a certain combinatorial condition, we prove that the dynamical system is measurably conjugate to an exchange of domains in a self-similar compact subset of the Euclidean space.