title: Evolving network with different edges.
abstract: We propose a scale-free network similar to Barabasi-Albert networks but with two different types of edges. This model is based on the idea that in many cases there are more than one kind of link in a network and when a new node enters the network both old nodes and different kinds of links compete to obtain it. The degree distribution of both the total degree and the degree of each type of edge is analyzed and found to be scale-free. Simulations are shown to confirm these results.
authors.affiliation: Department of Physics, Shanghai Jiao Tong University, Shanghai, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Sun
authors.forename: Yizhi
authors.initials: Y
authors.lastname: Ge
authors.forename: Sheng
authors.initials: S
authors.lastname: Li