Non-rectifiable Delone sets in SOL and other solvable groups

Given a lattice $Γ\subset SOL$, we show that there is a coarsely dense subset $\mathcal{D} \subset Γ$ that is not biLipschitz equivalent to $Γ$. We also prove similar results for lattices in certain higher rank abelian-by-abelian groups and for the solvable Baumslag-Solitar groups.

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