On the relation between graph distance and Euclidean distance in random geometric graphs

Given any two vertices u, v of a random geometric graph G(n, r), denote by d E (u, v) their Euclidean distance and by d E (u, v) their graph distance. The problem of finding upper bounds on d G (u, v) conditional on d E (u, v) that hold asymptotically almost surely has received quite a bit of attent...

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Veröffentlicht in:Advances in applied probability Jg. 48; H. 3; S. 848 - 864
Hauptverfasser: Díaz, J., Mitsche, D., Perarnau, G., Pérez-Giménez, X.
Format: Journal Article Verlag
Sprache:Englisch
Veröffentlicht: Cambridge, UK Cambridge University Press 01.09.2016
Applied Probability Trust
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ISSN:0001-8678, 1475-6064
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Zusammenfassung:Given any two vertices u, v of a random geometric graph G(n, r), denote by d E (u, v) their Euclidean distance and by d E (u, v) their graph distance. The problem of finding upper bounds on d G (u, v) conditional on d E (u, v) that hold asymptotically almost surely has received quite a bit of attention in the literature. In this paper we improve the known upper bounds for values of r=ω(√logn) (that is, for r above the connectivity threshold). Our result also improves the best known estimates on the diameter of random geometric graphs. We also provide a lower bound on d E (u, v) conditional on d E (u, v).
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ISSN:0001-8678
1475-6064
DOI:10.1017/apr.2016.31