Haihong Li, Hongyan Cheng, Qionglin Dai, Ping Ju, Mei Zhang, Junzhong Yang. Effects of dimers on cooperation in the spatial prisoner's dilemma game


Natural Sciences / Physics / General Physics

Submitted on: Aug 22, 2012, 19:12:42

Description: We investigate the evolutionary prisoner's dilemma game in structured populations by introducing dimers, which are defined as that two players in each dimer always hold a same strategy. We find that influences of dimers on cooperation depend on the type of dimers and the population structure. For those dimers in which players interact with each other, the cooperation level increases with the number of dimers though the cooperation improvement level depends on the type of network structures. On the other hand, the dimers, in which there are not mutual interactions, will not do any good to the cooperation level in a single community, but interestingly, will improve the cooperation level in a population with two communities. We explore the relationship between dimers and self-interactions and find that the effects of dimers are similar to that of self-interactions.

The abstract of this article will be published in the August 2012 issue of "Intellectual Archive Bulletin", ISSN 1929-1329.

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