Stationary distribution and extinction of a three-species food chain stochastic model
Stationary distribution and extinction of a three-species food chain stochastic model
复制标题
三物种食物链随机模型的平稳分布和灭绝
DOI:
10.1016/j.trmi.2017.12.002
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发表时间:
2018-08
期刊:
影响因子:
--
通讯作者:
Qimin Zhang
中科院分区:
文献类型:
--
作者:
Yonggang Ma;Qimin Zhang
In this paper, we investigate long-time behaviour of a stochastic three-species food chain model. By Markov semigroups theory, we prove that the densities of this model can converge to an invariant density or can converge weakly to a singular measure in L 1 under appropriate conditions. Further, several sufficient conditions for the extinction of the three species were obtained. Finally, numerical simulations are carried out to illustrate our theoretical results.
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