arXivDaily arXiv每日学术速递 周一至周五更新
arXiv physics/0701317physics.soc-ph
收藏

非同质种群中的进化博弈动力学

Evolutionary game dynamics in inhomogeneous populations

Xiaojie Chen, Feng Fu, Long Wang, Tianguang Chu

摘要:

据我们所知,在传统的进化博弈动力学方法中,种群通常被假设为同质的。在这里,我们专注于非同质群体。提出了一个能描述种群不均匀性的简单模型和一个类似于Moran过程的微观过程。通过对复制子动力学的研究,表明该模型也保持了不动点不变,并能影响收敛到平衡态的速度。计算并讨论了该模型的注视概率和注视时间。在非齐次种群中,存在不同的演化时间尺度,在每种情况下,都存在到达平衡点时间的最优解。而且,这些关于进化速度的结果对无限和有限种群都是有效的。

英文摘要:

To our knowledge, the populations are generally assumed to be homogeneous in the traditional approach to evolutionary game dynamics. Here, we focus on the inhomogeneous populations. A simple model which can describe the inhomogeneity of the populations and a microscopic process which is similar to Moran Process are presented. By studying the replicator dynamics, it is shown that this model also keeps the fixed points unchanged and can affect the speed of converging to the equilibrium state. The fixation probability and the fixation time of this model are computed and discussed. In the inhomogeneous populations, there are different situations that characterize the time scale of evolution; and in each situation, there exists an optimum solution for the time to the equilibrium points, respectively. Moreover, these results on the speed of evolution are valid for infinite and finite populations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑