English

On directed analogues of expander and hyperfinite graph sequences

Combinatorics 2023-06-22 v3 Computational Complexity Probability

Abstract

We introduce and study analogues of expander and hyperfinite graph sequences in the context of directed acyclic graphs, which we call "extender" and "hypershallow" graph sequences, respectively. Our main result is a probabilistic construction of non-hypershallow graph sequences.

Keywords

Cite

@article{arxiv.2008.08680,
  title  = {On directed analogues of expander and hyperfinite graph sequences},
  author = {Endre Csóka and Łukasz Grabowski},
  journal= {arXiv preprint arXiv:2008.08680},
  year   = {2023}
}

Comments

17 pages, no figures, v3: very minor changes compared to v2, final accepted version to appear in Comb. Probab. Comput

R2 v1 2026-06-23T17:58:31.325Z