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中文摘要：
应用随机过程理论研究种群数量变化,在更合理的假设下研究引入阻滞增长因素下的随机数学模型所刻画的种群数量动态变化关系.在纯生过程模型中引入环境容纳量,研究阻滞增长作用,通过计算得到了期望和方差,所得结果是对经典纯生过程模型的有益扩展.
英文摘要：
In this paper, change of population were studied by stochastic process theory. A more reasonable assumption that research into retarded growth factor of random mathematical model to study change of dynamic population. Through the introduction of environmental capacity to study the role of retarded growth in the pure process model, the variance and expectation are obtained by calculation. The results are a useful extension of the classical pure birth process model.
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