Interaction between populations promotes cooperation in voluntary prisoner's dilemma

被引：22

作者：

Shi, Juan ^{[1
,2
]}

Hu, Die ^{[1
,2
]}

Tao, Rui ^{[1
,2
]}

Peng, Yunchen ^{[1
,2
]}

Li, Yong ^{[1
,2
]}

Liu, Jinzhuo ^{[1
,2
]}

机构：

[1] Yunnan Univ, Sch Software, Kunming 650091, Yunnan, Peoples R China

[2] Key Lab Software Engn Yunnan Prov, Kunming 650091, Yunnan, Peoples R China

来源：

APPLIED MATHEMATICS AND COMPUTATION | 2021年 / 392卷

基金：

中国国家自然科学基金;

关键词：

Cooperation; Voluntary prisoner's dilemma; Population; NETWORK RECIPROCITY; EVOLUTIONARY GAMES; BEHAVIOR;

D O I：

10.1016/j.amc.2020.125728

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

The coexistence of different populations has recently been confirmed to be a simple yet effective mechanism to understand the stability of cooperation. Based on this intuition, we use the voluntary prisoner's dilemma (VPD) game as the mathematical model to explore the spatiotemporal dynamics of cooperation among different populations. By using parameter alpha as a key quantity that takes into account the strength of connections between populations, we observe that a fascinating spiral pattern is spontaneously formed, adding a new population always brings additional prey to cooperators in other populations, leading to competing spatial dynamics and pattern formation. Moreover, the system gradually changes from the C + D + L state to the C + D state and finally to the full C state. The inherent cyclic dominance of the strategies results in the self-organization of populations on the square lattice and ultimately effectively promotes cooperation. Our work emphasizes that the complexity of the evolutionary dynamics of structural populations is significantly increased by the simultaneous existence of different populations. (c) 2020 Elsevier Inc. All rights reserved.

引用

页数：7

共 53 条

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