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We study phase transition and percolation at criticality for three random graph models on the plane, viz., the homogeneous and inhomogeneous enhanced random connection models (RCM) and the Poisson stick model. These models are built on a…

概率论 · 数学 2020-04-03 Srikanth K. Iyer , Sanjoy Kr. Jhawar

We consider percolation on high-dimensional product graphs, where the base graphs are regular and of bounded order. In the subcritical regime, we show that typically the largest component is of order logarithmic in the number of vertices.…

组合数学 · 数学 2024-04-11 Sahar Diskin , Joshua Erde , Mihyun Kang , Michael Krivelevich

Due to their conceptual and mathematical simplicity, Erd\"os-R\'enyi or classical random graphs remain as a fundamental paradigm to model complex interacting systems in several areas. Although condensation phenomena have been widely…

无序系统与神经网络 · 物理学 2019-07-16 Fernando L. Metz , Isaac Pérez Castillo

We consider random graphs on the set of $N^2$ vertices placed on the discrete $2$-dimensional torus. The edges between pairs of vertices are independent, and their probabilities decay with the distance $\rho$ between these vertices as…

概率论 · 数学 2023-08-16 Vasilii Goriachkin , Tatyana Turova

We analyze a minimal model of a growing network. At each time step, a new vertex is added; then, with probability delta, two vertices are chosen uniformly at random and joined by an undirected edge. This process is repeated for t time…

Random geometric graphs (RGG) can be formalized as hidden-variables models where the hidden variables are the coordinates of the nodes. Here we develop a general approach to extract the typical configurations of a generic hidden-variables…

无序系统与神经网络 · 物理学 2015-04-28 Massimo Ostilli , Ginestra Bianconi

We provide sufficient conditions for a regular graph $G$ of growing degree $d$, guaranteeing a phase transition in its random subgraph $G_p$ similar to that of $G(n,p)$ when $p\cdot d\approx 1$. These conditions capture several well-studied…

组合数学 · 数学 2025-11-17 Sahar Diskin , Michael Krivelevich

We introduce a model for a growing random graph based on simultaneous reproduction of the vertices. The model can be thought of as a generalisation of the reproducing graphs of Southwell and Cannings and Bonato et al to allow for a random…

概率论 · 数学 2011-04-20 Jonathan Jordan

In this paper we study the component structure of random graphs with independence between the edges. Under mild assumptions, we determine whether there is a giant component, and find its asymptotic size when it exists. We assume that the…

概率论 · 数学 2010-06-29 Bela Bollobas , Svante Janson , Oliver Riordan

The classical result of Erdos and Renyi shows that the random graph G(n,p) experiences sharp phase transition around p=1/n - for any \epsilon>0 and p=(1-\epsilon)/n, all connected components of G(n,p) are typically of size O(log n), while…

组合数学 · 数学 2012-09-25 Michael Krivelevich , Benny Sudakov

We investigate the dynamic formation of regular random graphs. In our model, we pick a pair of nodes at random and connect them with a link if both of their degrees are smaller than d. Starting with a set of isolated nodes, we repeat this…

统计力学 · 物理学 2011-11-16 E. Ben-Naim , P. L. Krapivsky

In this paper, we study the order of the largest connected component of a random graph having two sources of randomness: first, the graph is chosen randomly from all graphs with a given degree sequence, and then bond percolation is applied.…

概率论 · 数学 2024-02-20 Lyuben Lichev , Dieter Mitsche , Guillem Perarnau

This is a (long) survey about applications of percolation theory in equilibrium statistical mechanics. The chapters are as follows: 1. Introduction 2. Equilibrium phases 3. Some models 4. Coupling and stochastic domination 5. Percolation 6.…

概率论 · 数学 2016-09-07 H. -O. Georgii , O. Häggström , C. Maes

We consider a version of continuum long-range percolation on finite boxes of $\mathbb{R}^d$ in which the vertex set is given by the points of a Poisson point process and each pair of two vertices at distance $r$ is connected with…

概率论 · 数学 2023-11-21 Ercan Sönmez

Uniform random intersection graphs have received much interest and been used in diverse applications. A uniform random intersection graph with $n$ nodes is constructed as follows: each node selects a set of $K_n$ different items uniformly…

物理与社会 · 物理学 2015-02-03 Jun Zhao , Osman Yağan , Virgil Gligor

We study the susceptibility, i.e., the mean size of the component containing a random vertex, in a general model of inhomogeneous random graphs. This is one of the fundamental quantities associated to (percolation) phase transitions; in…

概率论 · 数学 2012-03-27 Svante Janson , Oliver Riordan

Consider the complete graph \(K_n\) on \(n\) vertices where each edge \(e\) is independently open with probability \(p_n(e)\) or closed otherwise. Here \(\frac{C-\alpha_n}{n} \leq p_n(e) \leq \frac{C+\alpha_n}{n}\) where \(C > 0\) is a…

概率论 · 数学 2017-04-04 Ghurumuruhan Ganesan

We consider bond percolation on random graphs with given degrees and bounded average degree. In particular, we consider the order of the largest component after the random deletion of the edges of such a random graph. We give a rough…

组合数学 · 数学 2022-01-12 Nikolaos Fountoulakis , Felix Joos , Guillem Perarnau

We consider site (vertex) percolation on $d$-regular graphs, for both constant-degree and growing-degree cases. We give sufficient, and relatively tight, conditions for the emergence of the ``Erd\H{o}s-R\'enyi component phenomenon" in the…

组合数学 · 数学 2026-03-20 Sahar Diskin , Michael Krivelevich , Itay Markbreit

It is well-known that the $G(n,p)$ model of random graphs undergoes a dramatic change around $p=\frac 1n$. It is here that the random graph is, almost surely, no longer a forest, and here it first acquires a giant (i.e., order $\Omega(n)$)…

概率论 · 数学 2016-09-20 Nathan Linial , Yuval Peled