MathJax


Spreading Phenomena Question

Consider an epidemic spreading on a large scale-free network whose degree distribution follows
\[ P(k) \sim k^{-\gamma} \]

with \(2 < \gamma \le 3\). According to Network Epidemics theory field, which of the following statements is correct?

A) The epidemic spreads more slowly than in a random network because hubs act as bottlenecks.

B) The characteristic spreading time increases with the second moment \(\langle k^2 \rangle\).

C) In the SIS model, the epidemic threshold \(\lambda_c\) tends to zero as the network size becomes very large (\(N \rightarrow \infty\)).

D) The early-time behavior of the SI model is linear in time rather than exponential.

E) None of the above.



Original idea by: Carlos Trindade

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