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2 - Local Convergence of Random Graphs

from Part I - Preliminaries

Published online by Cambridge University Press:  08 February 2024

Remco van der Hofstad
Affiliation:
Technische Universiteit Eindhoven, The Netherlands
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Summary

In this chapter we discuss local convergence, which describes the intuitive notion that a finite graph, seen from the perspective of a typical vertex, looks like a certain limiting graph. Local convergence plays a profound role in random graph theory. We give general definitions of local convergence in several probabilistic senses. We then show that local convergence in its various forms is equivalent to the appropriate convergence of subgraph counts. We continue by discussing several implications of local convergence, concerning local neighborhoods, clustering, assortativity, and PageRank. We further investigate the relation between local convergence and the size of the giant, making the statement that the giant is “almost local” precise.

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Publisher: Cambridge University Press
Print publication year: 2024

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