We show that the PageRank in a network can be represented as the solution of a differential equation discretized over a directed graph. By exploiting a formal relationship with the time-independent Schrodinger equation it is possible to interpret hub formation and related phenomena as a wave-like localization process in the presence of disorder and trapping potentials. The result opens new perspectives in the physics of networks with interdisciplinary connections and opens the way to the employment of various mathematical techniques to the analysis of self-organization in structured systems. Applications are envisaged in the World-Wide Web, traffic, social and biological networks. Copyright (C) EPLA, 2009

PageRank equation and localization in the WWW / N., Perra; V., Zlatic; A., Chessa; Conti, Claudio; D., Donato; G., Caldarelli. - In: EUROPHYSICS LETTERS. - ISSN 0295-5075. - STAMPA. - 88:4(2009), p. 48002. [10.1209/0295-5075/88/48002]

PageRank equation and localization in the WWW

CONTI, CLAUDIO;
2009

Abstract

We show that the PageRank in a network can be represented as the solution of a differential equation discretized over a directed graph. By exploiting a formal relationship with the time-independent Schrodinger equation it is possible to interpret hub formation and related phenomena as a wave-like localization process in the presence of disorder and trapping potentials. The result opens new perspectives in the physics of networks with interdisciplinary connections and opens the way to the employment of various mathematical techniques to the analysis of self-organization in structured systems. Applications are envisaged in the World-Wide Web, traffic, social and biological networks. Copyright (C) EPLA, 2009
2009
network theory; page-rank; scale free networks; solitons; www
01 Pubblicazione su rivista::01a Articolo in rivista
PageRank equation and localization in the WWW / N., Perra; V., Zlatic; A., Chessa; Conti, Claudio; D., Donato; G., Caldarelli. - In: EUROPHYSICS LETTERS. - ISSN 0295-5075. - STAMPA. - 88:4(2009), p. 48002. [10.1209/0295-5075/88/48002]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/135756
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