Block structure in boolean matrices of bounded factorization norm
Classical Analysis and ODEs
2025-07-16 v2
Abstract
A boolean matrix is blocky if its -entries form a collection of 1-monochromatic submatrices that are disjoint in both rows and columns. Blocky matrices are precisely the set of boolean matrices with factorization norm at most . Building on recent work by Balla, Hambardzumyan, and Tomon, we show that for any boolean matrix with norm at most , there exists a a collection of row- and column-disjoint 1-monochromatic submatrices that together cover a significant portion (at least a fraction) of its -entries.
Keywords
Cite
@article{arxiv.2507.00872,
title = {Block structure in boolean matrices of bounded factorization norm},
author = {Marcel K. Goh and Hamed Hatami},
journal= {arXiv preprint arXiv:2507.00872},
year = {2025}
}
Comments
14 pages