The Pisot Conjecture for $\beta$-substitutions

Abstract

We prove the Pisot Conjecture for beta-substitutions: If beta is a Pisot number, the tiling dynamical system associated with the beta-substitution has pure discrete spectrum. As corollaries: (1) arithmetical coding of the hyperbolic solenoidal automorphism associated with the companion matrix of the minimal polynomial of any Pisot number is almost everywhere one-to-one; and (2) every Pisot number is weakly finitary.

Incorrect comment removed from Section 2, some typos fixed

References in corpus (2)

• Consequences of Pure Point Diffraction Spectra for Multiset Substitution Systems
• Aperiodic order and pure point diffraction

Cited by in corpus (2)

• Geometry, dynamics, and arithmetic of $S$-adic shifts
• Fractal tiles induced by tent maps