Journal
EPL
Volume 77, Issue 6, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1209/0295-5075/77/60004
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We study an intermittent random walk on a random network of scale-free degree distribution. The walk is a combination of simple random walks of duration t(w) and random long-range jumps. While the time the walker needs to cover all the nodes increases with t(w), the corresponding time for the edges displays a nonmonotonic behaviour with a minimum for some nontrivial value of t(w). This is a heterogeneity-induced effect that is not observed in homogeneous small-world networks. The optimal t(w) increases with the degree of assortativity in the network. Depending on the nature of degree correlations and the elapsed time the walker finds an over/under-estimate of the degree distribution exponent.
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