Modular scale-free networks We denote by Hg the network model after g iterations For g=l, k The network consists of a central node, called the hub node And M-1 peripheral (external)nodes. All these M nodes are fully connected to each other. We denote by Hg the network model after g iterations.  For g=1,  The network consists of a central node, called the hub node,  And M-1 peripheral (external) nodes. All these M nodes are fully connected to each other. Modular scale-free networks 20:19:48