Document Type
Article
Publication Date
2009
Keywords
Random geometric graph, Connectivity, Poisson process
Abstract
Let P be a Poisson process of intensity 1 in a square Sn of area n. For a fixed integer k, join every point of P to its k nearest neighbours, creating an undirected random geometric graph Gn,k. We prove that there exists a critical constant ccrit such that, for c‹ccrit, Gn,⌊clogn⌋ is disconnected with probability tending to 1 as n →∞ and, for c‹ccrit, Gn,⌊clogn⌋ is connected with probability tending to 1 as n →∞. This answers a question posed in Balister et al. (2005).
Publication Title
Advances in Applied Probability
Volume
41
Issue
1
First Page
1
Last Page
12
DOI
http://dx.doi.org/10.1239/aap/1240319574
Required Publisher's Statement
Published by Project Euclid
DOI:10.1239/aap/1240319574
Recommended Citation
Balister, Paul; Bollobás, Béla; Sarkar, Amites; Walters, Mark. A critical constant for the k nearest-neighbour model. Adv. in Appl. Probab. 41 (2009), no. 1, 001--012. doi:10.1239/aap/1240319574. http://projecteuclid.org/euclid.aap/1240319574.
Subjects - Topical (LCSH)
Random graphs; Graph connectivity; Poisson processes
Genre/Form
articles
Type
Text
Rights
Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this document for commercial purposes, or for financial gain, shall not be allowed without the author’s written permission.
Language
English
Format
application/pdf
Comments
This is the authors' version of the article. The publisher version is at: http://projecteuclid.org/euclid.aap/1240319574