Fluctuations in Network Dynamics

M. Argollo de Menezes, A. L. Barabási

Research output: Contribution to journalArticlepeer-review

Abstract (may include machine translation)

Most complex networks serve as conduits for various dynamical processes, ranging from mass transfer by chemical reactions in the cell to packet transfer on the Internet. We collected data on the time dependent activity of five natural and technological networks, finding that for each the coupling of the flux fluctuations with the total flux on individual nodes obeys a unique scaling law. We show that the observed scaling can explain the competition between the system’s internal collective dynamics and changes in the external environment, allowing us to predict the relevant scaling exponents.

Original languageEnglish
Pages (from-to)4
Number of pages1
JournalPhysical Review Letters
Volume92
Issue number2
DOIs
StatePublished - 2004
Externally publishedYes

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