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In this paper we study the threshold model of \emph{geometric inhomogeneous random graphs} (GIRGs); a generative random graph model that is closely related to \emph{hyperbolic random graphs} (HRGs). These models have been observed to…

离散数学 · 计算机科学 2023-06-19 Thomas Bläsius , Tobias Friedrich , Maximilian Katzmann , Janosch Ruff , Ziena Zeif

In this work we introduce Dynamic Random Geometric Graphs as a basic rough model for mobile wireless sensor networks, where communication distances are set to the known threshold for connectivity of static random geometric graphs. We…

离散数学 · 计算机科学 2007-05-23 Josep Diaz , Dieter Mitsche , Xavier Perez

In this paper we study the one dimensional random geometric graph when the location of the nodes are independent and exponentially distributed. We derive exact results and the limit theorems for the connectivity and other properties…

概率论 · 数学 2007-05-23 Bhupendra Gupta , Srikanth K. Iyer , D. Manjunath

Given a Poisson process on a bounded interval, its random geometric graph is the graph whose vertices are the points of the Poisson process and edges exist between two points if and only if their distance is less than a fixed given…

概率论 · 数学 2010-08-31 Laurent Decreusefond , Eduardo Ferraz

In this paper, we analyze the exact asymptotic behavior of the connectivity probability in a random binomial bipartite graph $G(n,m,p)$ under various regimes of the edge probability $p=p(n)$. To determine this probability, a method based on…

概率论 · 数学 2025-04-16 Boris Chinyaev

We present an explicit connected spanning structure that appears in a random graph just above the connectivity threshold with high probability.

组合数学 · 数学 2021-11-29 Yahav Alon , Michael Krivelevich , Peleg Michaeli

Consider a 2-dimensional soft random geometric graph $G(\lambda,s,\phi)$, obtained by placing a Poisson($\lambda s^2$) number of vertices uniformly at random in a square of side $s$, with edges placed between each pair $x,y$ of vertices…

概率论 · 数学 2022-04-25 Mathew D. Penrose

In this paper, we study the connectivity of a one-dimensional soft random geometric graph (RGG). The graph is generated by placing points at random on a bounded line segment and connecting pairs of points with a probability that depends on…

概率论 · 数学 2021-01-04 Michael Wilsher , Carl P. Dettmann , Ayalvadi Ganesh

This article discusses random hypergraphs with varying hyperedge sizes, admitting large hyperedges with size tending to infinity, and heavy-tailed limiting hyperedge size distributions. The main result describes a threshold for the random…

组合数学 · 数学 2024-06-11 Elmer Bergman , Lasse Leskelä

In previous papers, threshold probabilities for the properties of a random distance graph to contain strictly balanced graphs were found. We extend this result to arbitrary graphs and prove that the number of copies of a strictly balanced…

组合数学 · 数学 2018-05-09 A. V. Burkin , M. E. Zhukovskii

For the size of the largest component in a supercritical random geometric graph, this paper estimates its expectation which tends to a polynomial on a rate of exponential decay, and sharpens its asymptotic result with a central limit…

概率论 · 数学 2013-11-06 Ge Chen , Chang-Long Yao , Tian-De Guo

We analyse graphs in which each vertex is assigned random coordinates in a geometric space of arbitrary dimensionality and only edges between adjacent points are present. The critical connectivity is found numerically by examining the size…

统计力学 · 物理学 2009-11-07 Jesper Dall , Michael Christensen

Consider a graph on $n$ uniform random points in the unit square, each pair being connected by an edge with probability $p$ if the inter-point distance is at most $r$. We show that as $n\to\infty$ the probability of full connectivity is…

概率论 · 数学 2016-04-07 Mathew D. Penrose

The maximum likelihood threshold of a graph is the smallest number of data points that guarantees that maximum likelihood estimates exist almost surely in the Gaussian graphical model associated to the graph. We show that this graph…

组合数学 · 数学 2015-09-17 Elizabeth Gross , Seth Sullivant

Asymptotic properties of random graph sequences, like occurrence of a giant component or full connectivity in Erd\H{o}s-R\'enyi graphs, are usually derived with very specific choices for defining parameters. The question arises to which…

概率论 · 数学 2024-02-20 B. J. K. Kleijn , S. Rizzelli

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

A temporal random geometric graph is a random geometric graph in which all edges are endowed with a uniformly random time-stamp, representing the time of interaction between vertices. In such graphs, paths with increasing time stamps…

Consider the geometric graph on $n$ independent uniform random points in a connected compact region $A$ of ${\bf R}^d, d \geq 2$, with $C^2$ boundary, or in the unit square, with distance parameter $r_n$. Let $K_n$ be the number of…

概率论 · 数学 2026-04-09 Mathew D. Penrose , Xiaochuan Yang

We identify the asymptotic probability of a configuration model $\mathrm{CM}_n(\boldsymbol{d})$ to produce a connected graph within its critical window for connectivity that is identified by the number of vertices of degree 1 and 2, as well…

概率论 · 数学 2022-04-15 Lorenzo Federico , Remco van der Hofstad

Let S_{n,k} denote the random geometric graph obtained by placing points inside a square of area n according to a Poisson point process of intensity 1 and joining each such point to the k=k(n) points of the process nearest to it. In this…

概率论 · 数学 2013-09-18 Victor Falgas-Ravry
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