Table 2 Metapopulation model variables

k

degree of a subpopulation, i.e. number of connectionsto other subpopulations

$[1;\sqrt{V}]$

P(k) = k^-γ;γ

subpopulation degree distribution; power-law exponent

γ = 2.3,3

V;V _k

total number of subpopulations; number of subpopulationswith degree k

V = 10⁴

average population of a node, population of a node;

$\bar{N},N_k=\frac{\bar{N}{k}^{\varphi }}{〈k^{\varphi }〉};$

with degree k

$\bar{N}=10^4$

ϕ;

power-law exponent;

ϕ = 3/4

w ₀

mobility scale

w₀ = 0.05

number of travelers from a subpopulation with degree k _l

w _lm  = w₀(k _l k _m )^θ;

to a subpopulation with degree k _m ;

θ

power-law exponent

θ = 0.5