Decelerated spreading in degree-correlated networks

Details Decelerated spreading in degree-correlated networks Decelerated spreading in degree-correlated networks

2009-09-21

arxiv.org/abs/0909.3817v2

Phys. Rev. E 85, 015101 (2012), Rapid Communication

Physics

Physics and Society

Scientific paper

While degree correlations are known to play a crucial role for spreading phenomena in networks, their impact on the propagation speed has hardly been understood. Here we investigate a tunable spreading model on scale-free networks and show that the propagation becomes slow in positively (negatively) correlated networks if nodes with a high connectivity locally accelerate (decelerate) the propagation. Examining the efficient paths offers a coherent explanation for this result, while the $k$-core decomposition reveals the dependence of the nodal spreading efficiency on the correlation. Our findings should open new pathways to delicately control real-world spreading processes.

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