Fig 4. R as a function of Γ for τ = 2 with N = 105 on SF networks with λ = 2.5 (black) and λ = 3 (red) and k min = 20.
As shown in the plots FSIR has a critical point around Γc ≈ 1, independent of the degree distribution. The same critical value Γc is observed for other degree distributions with different parameter settings.