This equation computes the degree distribution value for the number of edges, `k_i`, of the i-th node, where 0 < `beta` < 1.
k - number edges, `k_i` for i-th node
K - mean number of edges incident on a vertex
`beta` - characteristic constant of the network
This model describes networks that exhibit the "small world" phenomenon, which is the theory that any person on the planet is a small number of connections away from any other person in the world.
Small world phenomena is not limited to people-related networks. Other networks exhibit the same nodal relationships described by this model.