Fig. 3. (Color online) The fraction
I of infectious nodes with respect to (a)
w and
p with the mean degree
〈k〉=20 and (b)
〈k〉 and
p with
w=0.02 are shown. The dashed lines correspond to the epidemic threshold predicted by Eq. (
6). The numerical results are obtained with
N=105 and
r=0.02.
