Reconstructing Subsets of Reals

A. J. Radcliffe, A. D. Scott
1999 Electronic Journal of Combinatorics  
We consider the problem of reconstructing a set of real numbers up to translation from the multiset of its subsets of fixed size, given up to translation. This is impossible in general: for instance almost all subsets of $\mathbb{Z}$ contain infinitely many translates of every finite subset of $\mathbb{Z}$. We therefore restrict our attention to subsets of $\mathbb{R}$ which are locally finite; those which contain only finitely many translates of any given finite set of size at least 2. We
more » ... that every locally finite subset of $\mathbb{R}$ is reconstructible from the multiset of its 3-subsets, given up to translation.
doi:10.37236/1452 fatcat:wvvj4hzaxzfdhdjyqe4vr25ryy