English

A Harary-Sachs Theorem for Hypergraphs

Combinatorics 2021-07-23 v2

Abstract

We generalize the Harary-Sachs theorem to kk-uniform hypergraphs: the codegree-dd coefficient of the characteristic polynomial of a uniform hypergraph H{\cal H} can be expressed as a weighted sum of subgraph counts over certain multi-hypergraphs with dd edges. We include a detailed description of the aforementioned multi-hypergraphs and a formula for their corresponding weights.

Keywords

Cite

@article{arxiv.1812.00468,
  title  = {A Harary-Sachs Theorem for Hypergraphs},
  author = {Gregory J. Clark and Joshua Cooper},
  journal= {arXiv preprint arXiv:1812.00468},
  year   = {2021}
}
R2 v1 2026-06-23T06:28:33.108Z