弱饱和稳定性阈值

Pub Date : 2024-02-23 DOI:10.1002/jgt.23079
Mohammadreza Bidgoli, Ali Mohammadian, Behruz Tayfeh-Rezaie, Maksim Zhukovskii
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引用次数: 0

摘要

我们研究厄尔多斯-雷尼随机图的弱饱和数,用 ,表示,其中是顶点上的完整图。2017 年,Korándi 和 Sudakov 证明了的弱饱和数是稳定的,即在以恒定概率移除边后,它保持不变。在本文中,我们证明了这一稳定性存在一个阈值,并给出了阈值的上界和下界。这推广了 Korándi 和 Sudakov 的结果。本文还给出了一般的上界。
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Threshold for stability of weak saturation

We study the weak K s ${K}_{s}$ -saturation number of the Erdős–Rényi random graph G ( n , p ) ${\mathbb{G}}(n,p)$ , denoted by wsat ( G ( n , p ) , K s ) $\text{wsat}({\mathbb{G}}(n,p),{K}_{s})$ , where K s ${K}_{s}$ is the complete graph on s $s$ vertices. In 2017, Korándi and Sudakov proved that the weak K s ${K}_{s}$ -saturation number of K n ${K}_{n}$ is stable, in the sense that it remains the same after removing edges with constant probability. In this paper, we prove that there exists a threshold for this stability property and give upper and lower bounds on the threshold. This generalizes the result of Korándi and Sudakov. A general upper bound on wsat ( G ( n , p ) , K s ) $\text{wsat}({\mathbb{G}}(n,p),{K}_{s})$ is also provided.

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