| Evolutionary Prisoner＇s Dilemma on a Weighted Scale-Free Network |
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| 引用本文： | 程洪艳,李海红,代琼琳,杨俊忠.Evolutionary Prisoner＇s Dilemma on a Weighted Scale-Free Network[J].中国物理快报,2010,27(7):1-4. |
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| 作者姓名： | 程洪艳 李海红 代琼琳 杨俊忠 |
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| 基金项目： | Supported by the New Century Excellent Talent Project of the Ministry of Education of China under Grant No NECT-07-0112, the National Natural Science Foundation of China under Grant No 10775022, and the Fundamental Research Funds for the Central Universities |
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| 摘 要： | We investigate the evolutionary prisoner＇s dilemma on a weighted scale-free network where the diversity of teaching ability is introduced to the network in the form of weight. Though the diversity of teaching ability is not a sufficient condition for the enhancement of cooperation, we find that the degree-dependent teaching ability plays an active role in the evolution of cooperation. A new phenomenon is found when the degree-dependent teaching ability is used： the distribution of the cooperator frequency displays a two-peak structure for a certain parameter range. We also investigate the effects of the degree-degree correlation of the network on the evolution of cooperation in the presence of the diversity of the teaching ability.
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| 关 键 词： | 无标度网络 囚徒困境 加权 演化 教学能力 充分条件 参数范围 频率分布 |
| 收稿时间： | 2010-3-23 |
Evolutionary Prisoner's Dilemma on a Weighted Scale-Free Network |
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| CHENG Hong-Yan,LI Hai-Hong,DAI Qiong-Lin,YANG Jun-Zhong.Evolutionary Prisoner's Dilemma on a Weighted Scale-Free Network[J].Chinese Physics Letters,2010,27(7):1-4. |
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| Authors: | CHENG Hong-Yan LI Hai-Hong DAI Qiong-Lin YANG Jun-Zhong |
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| Institution: | School of Science, Beijing University of Posts and Telecommunications, Beijing 100876 Department of Physics, Beijing Normal University, Beijing 100875 |
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| Abstract: | We investigate the evolutionary prisoner's dilemma on a weighted scale-free network where the diversity of teaching ability is introduced to the network in the form of weight. Though the diversity of teaching ability is not a sufficient condition for the enhancement of cooperation, we find that the degree-dependent teaching ability plays an active role in the evolution of cooperation. A new phenomenon is found when the degree-dependent teaching ability is used: the distribution of the cooperator frequency displays a two-peak structure for a certain parameter range. We also investigate the effects of the degree-degree correlation of the network on the evolution of cooperation in the presence of the diversity of the teaching ability. |
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| Keywords: | 02 50 Le 87 23 Kg 07" target="_blank">')"> 07 05 Tp |
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