Influence of vertex weight on cooperative behavior in a spatial snowdrift game

被引：37

作者：

Xia, C. Y. ^{[1
,2
]}

Zhao, J. ^{[1
,2
]}

Wang, J. ^{[3
]}

Wang, Y. L. ^{[4
]}

Zhang, H. ^{[1
,2
]}

机构：

[1] Tianjin Univ Technol, Minist Educ, Lab Comp Vis & Syst, Tianjin 300191, Peoples R China

[2] Tianjin Univ Technol, Tianjin Key Lab Intelligence Comp & Novel Softwar, Tianjin 300191, Peoples R China

[3] Tianjin Univ Technol, Tianjin Key Lab Control Theory & Applicat Complic, Tianjin 300191, Peoples R China

[4] Shanxi Normal Univ, Sch Life Sci, Linfen 041000, Shanxi, Peoples R China

来源：

PHYSICA SCRIPTA | 2011年 / 84卷 / 02期

基金：

中国博士后科学基金;

关键词：

EVOLUTIONARY GAMES; DIVERSITY PROMOTES; NETWORKS;

D O I：

10.1088/0031-8949/84/02/025802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper the vertex weight is introduced into a snowdrift game to study the evolution of cooperative behavior. Compared with the snowdrift game in a traditional square lattice without any weight, cooperation can be promoted under three types of weight distribution: uniform, exponential and power-law distribution. For an intermediate cost-to-benefit ratio (r), in particular, the facilitation effect of cooperation is obvious. Moreover, the influence of undulation amplitude of weight distribution and the noise strength of strategy selection on cooperative behavior are also investigated. They exhibit a nontrivial phenomenon as a function of r. The results are helpful in analyzing and understanding the emergence of collective cooperation that is found widely in many natural and social systems.

引用

页数：6

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