送交者: 方舟子 于 2009-04-19, 10:41:59:
回答: 这个math果然是个烂人,陷入为争而争的境地了。 由 Amsel 于 2009-04-19, 10:20:55:
第二篇论文:
In this case, the cheaters would always outgrow the cooperators, and the interaction would be what is called a prisoner’s dilemma, in which cooperation is not sustainable in a well mixed environment.