English

Covering point-sets with parallel hyperplanes and sparse signal recovery

Combinatorics 2021-12-30 v2 Numerical Analysis Metric Geometry Numerical Analysis

Abstract

We give a new deterministic construction of integer sensing matrices that can be used for the recovery of integer-valued signals in compressed sensing. This is a family of n×dn \times d integer matrices, dnd \geq n, with bounded sup-norm and the property that no \ell column vectors are linearly dependent, n\ell \leq n. Further, if o(logn)\ell \leq o(\log n) then d/nd/n \to \infty as nn \to \infty. Our construction comes from particular sets of difference vectors of point-sets in Rn\mathbb R^n that cannot be covered by few parallel hyperplanes. We construct examples of such sets on the 0,±10, \pm 1 grid and use them for the matrix construction. We also show a connection of our constructions to a simple version of the Tarski plank problem.

Keywords

Cite

@article{arxiv.1912.10138,
  title  = {Covering point-sets with parallel hyperplanes and sparse signal recovery},
  author = {Lenny Fukshansky and Alexander Hsu},
  journal= {arXiv preprint arXiv:1912.10138},
  year   = {2021}
}

Comments

11 pages, 1 figure; to appear in Discrete and Computational Geometry

R2 v1 2026-06-23T12:53:06.874Z