Abstract

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.

Notes

Originally published in Physical Review Letters 92(2), 2004. doi:10.1103/PhysRevLett.92.028701

Keywords

complex networks

Subject Categories

Dynamics

Disciplines

Physics

Publisher

The American Physical Society

Publication Date

1-2004

Rights Holder

©2004 The American Physical Society

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Physics Commons

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