Enhancement of cooperation in highly clustered scale-free networks

被引:190
作者
Assenza, Salvatore [1 ]
Gomez-Gardenes, Jesus [1 ,2 ]
Latora, Vito [3 ,4 ]
机构
[1] Scuola Super Catania, I-95123 Catania, Italy
[2] Univ Zaragoza, Inst Biocomputat & Phys Complex Syst BIFI, E-50009 Zaragoza, Spain
[3] Univ Catania, Dipartimento Fis & Astron, I-95123 Catania, Italy
[4] Ist Nazl Fis Nucl, I-95123 Catania, Italy
来源
PHYSICAL REVIEW E | 2008年 / 78卷 / 01期
关键词
D O I
10.1103/PhysRevE.78.017101
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
We study the effect of clustering on the organization of cooperation by analyzing the evolutionary dynamics of the "Prisoner's Dilemma" on scale-free networks with a tunable value of clustering. We find, on the one hand, that a high value of the clustering coefficient produces an overall enhancement of cooperation in the network, even for a very high temptation to defect. On the other hand, high clustering homogenizes the process of invasion of degree classes by defectors, decreasing the chances of survival of low densities of cooperators in the network.
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页数:4
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