Bounded remainder sets, bounded distance equivalent cut-and-project sets, and equidecomposability

Abstract: We use the measurable Hall's theorem due to Cieśla and Sabok to prove that (i) if two measurable sets $A,B \subset \mathbb{R}<sup>d$ of the same measure are bounded remainder sets with respect to a given irrational $d$-dimensional vector $α$, then $A, B$ are equidecomposable with measurable pieces using translations from $\mathbb{Z} α+ \mathbb{Z}<sup>d$; and (ii) given a lattice $$Γ\subset \mathbb{R}^m \times \mathbb{R}<sup>n$$ with projections $p_1$ and $p_2$ onto $\mathbb{R}<sup>m$ and $\mathbb{R}<sup>n$ respectively, if two cut-and-project sets in $\mathbb{R}<sup>m$ obtained from Riemann measurable windows $W, W&#39; \subset \mathbb{R}<sup>n$ are bounded distance equivalent, then $W, W&#39;$ are equidecomposable with measurable pieces using translations from $p_2(Γ)$. We also prove by a different method that for one-dimensional cut-and-project sets the pieces can be chosen Riemann measurable.