Evolutionary snowdrift game on heterogeneous Newman-Watts small-world network

• 来源期刊: 中国物理B(英文版)
• 关键词: complex networks snowdrift game cooperation heterogeneous Newman-Watts small- world network
• 年，卷（期）: 2008,（8）
• 页码范围: 2759-2763
• 页数: 5页
• 语种: 英文

摘要

We study the evolutionary snowdrift game in a heterogeneous Newman-Watts small-world network. The hetero-geneity of the network is controlled by the number of hubs. It is found that the moderate heterogeneity of the network can promote the cooperation best. Besides, we study how the hubs affect the evolution of cooperative behaviours of the heterogeneous Newman-Watts small-world network. Simulation results show that both the initial states of hubs and the connections between hubs can play an important role. Our work gives a further insight into the effect of hubs on the heterogeneous networks.