A sparse Erdos-Renyi contact network has mean degree

PHYSICS · Subjective · Fermi University Physics · Thermal, Statistical & Complex Systems · Complex and collective systems · Complex and collective systems

Many Parts, One Behaviour, Ch Epidemics on networks

Problem

A sparse Erdos-Renyi contact network has mean degree c=5c = 5, so its degree distribution is Poisson with ⟨k2⟩=c2+c\langle k^2\rangle = c^2 + c. Find its epidemic threshold TcT_{\rm c}.

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