Prisoner's Dilemma on community networks

被引：70

作者：

Chen, Xiaojie

Fu, Feng

Wang, Long ^{[1
]}

机构：

[1] Peking Univ, Intelligent Control Lab, Ctr Syst & Control, Dept Mech & Space Technol,Coll Engn, Beijing 100871, Peoples R China

[2] Peking Univ, Coll Engn, Dept Ind Engn & Management, Beijing 100871, Peoples R China

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2007年 / 378卷 / 02期

基金：

中国国家自然科学基金;

关键词：

community networks; prisoner's dilemma; cooperation; heterogeneity;

D O I：

10.1016/j.physa.2006.12.024

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We introduce a community network model which exhibits scale-free property and study the evolutionary Prisoner's Dilemma game (PDG) on this network model. It is found that the frequency of cooperators decreases with the increment of the average degree (k) over bar from the simulation results. And reducing inter-community links can promote cooperation when we keep the total links (including inner-community and inter-community links) unchanged. It is also shown that the heterogeneity of networks does not always enhance cooperation and the pattern of links among all the vertices under a given degree-distribution plays a crucial role in the dominance of cooperation in the network model. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：512 / 518

页数：7

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