English

Enumerating independent sets in Abelian Cayley graphs

Combinatorics 2021-12-06 v5 Discrete Mathematics

Abstract

We show that any connected Cayley graph Γ\Gamma on an Abelian group of order 2n2n and degree Ω~(logn)\tilde{\Omega}(\log n) has at most 2n+1(1+o(1))2^{n+1}(1 + o(1)) independent sets. This bound is tight up to to the o(1)o(1) term when Γ\Gamma is bipartite. Our proof is based on Sapozhenko's graph container method and uses the Pl\"{u}nnecke-Rusza-Petridis inequality from additive combinatorics.

Keywords

Cite

@article{arxiv.2109.06152,
  title  = {Enumerating independent sets in Abelian Cayley graphs},
  author = {Aditya Potukuchi and Liana Yepremyan},
  journal= {arXiv preprint arXiv:2109.06152},
  year   = {2021}
}

Comments

21 pages, fixed minor typos and citations

R2 v1 2026-06-24T05:55:40.917Z