Abstract：
:In large random networks, each eigenvector of the Laplacian matrix tends to localize on a subset of network nodes having similar numbers of edges, namely, the components of each Laplacian eigenvector take relatively large values only on a particular subset of nodes whose degrees are close. Although this localization property has significant consequences for dynamical processes on random networks, a clear theoretical explanation has not yet been established. Here we analyze the origin of localization of Laplacian eigenvectors on random networks by using a perturbation theory. We clarify how heterogeneity in the node degrees leads to the eigenvector localization and that there exists a clear degree-eigenvalue correspondence, that is, the characteristic degrees of the localized nodes essentially determine the eigenvalues. We show that this theory can account for the localization properties of Laplacian eigenvectors on several classes of random networks, and argue that this localization should occur generally in networks with degree heterogeneity.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Hata S,Nakao Hdoi
10.1038/s41598-017-01010-0subject
Has Abstractpub_date
2017-04-25 00:00:00pages
1121issue
1issn
2045-2322pii
10.1038/s41598-017-01010-0journal_volume
7pub_type
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pub_type： 杂志文章,meta分析
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