English

Many cliques with small degree powers

Combinatorics 2024-11-20 v2

Abstract

Suppose 0<p0 < p \le \infty. For a simple graph GG with a vertex-degree sequence d1,,dnd_1, \dots, d_n satisfying (d1p++dnp)1/pC(d_1^p + \dots + d_n^p)^{1/p} \le C, we prove asymptotically sharp upper bounds on the number of tt-cliques in GG. This result bridges the p=1p = 1 case, which is the notable Kruskal--Katona theorem, and the p=p = \infty case, known as the Gan--Loh--Sudakov conjecture, and resolved by Chase. In particular, we demonstrate that the extremal construction exhibits a dichotomy between a single clique and multiple cliques at p0=t1p_0 = t - 1. Our proof employs the entropy method.

Keywords

Cite

@article{arxiv.2410.04744,
  title  = {Many cliques with small degree powers},
  author = {Ting-Wei Chao and Zichao Dong and Zijun Shen and Ningyuan Yang},
  journal= {arXiv preprint arXiv:2410.04744},
  year   = {2024}
}

Comments

15 pages

R2 v1 2026-06-28T19:10:42.743Z