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随机捕食-被捕食模型
Stochastic Prey-Predator Model
【摘要】 本文建立了一类二维非线性生灭捕食一被捕食模型.利用概率母函数,我们得到其均值过程所满足的偏微分方程组,并证明了捕食者和被捕食者以概率1灭绝.
【Abstract】 In this paper,a 2-dimension,nonlinear birth-death prey-predator model is established.By generating function,we derive the partial differential equations that the mean process of our model satisfied and prove that the preys and predators will extinct with probability 1.
【关键词】 捕食-被捕食模型;
生灭过程;
概率母函数;
灭绝概率;
【Key words】 Prey-predator model; birth-death process; generating function; extinction probability;
【Key words】 Prey-predator model; birth-death process; generating function; extinction probability;
- 【文献出处】 应用概率统计 ,Chinese Journal of Applied Probability and Statistics , 编辑部邮箱 ,2009年04期
- 【分类号】O175
- 【被引频次】1
- 【下载频次】192