Asymptotic Behaviour and Extinction of Delay Lotka-Volterra Model with Jump-Diffusion
Asymptotic Behaviour and Extinction of Delay Lotka-Volterra Model with Jump-Diffusion
复制标题
跳跃扩散延迟Lotka-Volterra模型的渐近行为和消退
DOI:
10.1155/2014/249504
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发表时间:
2014-01
影响因子:
--
通讯作者:
Song Guohua
中科院分区:
文献类型:
--
作者:
Li Dan;Cui Jing'an;Song Guohua
This paper studies the effect of jump-diffusion random environmental perturbations on the asymptotic behaviour and extinction of Lotka-Volterra population dynamics with delays. The contributions of this paper lie in the following: (a) to consider delay stochastic differential equation with jumps, we introduce a proper initial data space, in which the initial data may be discontinuous function with downward jumps; (b) we show that the delay stochastic differential equation with jumps associated with our model has a unique global positive solution and give sufficient conditions that ensure stochastically ultimate boundedness, moment average boundedness in time, and asymptotic polynomial growth of our model; (c) the sufficient conditions for the extinction of the system are obtained, which generalized the former results and showed that the sufficiently large random jump magnitudes and intensity (average rate of jump events arrival) may lead to extinction of the population.
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影响因子:
1.3
作者:
X. Mao
通讯作者:
X. Mao
DOI:
--
发表时间:
1999-12
期刊:
--
影响因子:
--
作者:
R. Ash;C. Doléans-Dade
通讯作者:
R. Ash;C. Doléans-Dade
DOI:
10.1142/p473
发表时间:
2006-08
期刊:
J. Frankl. Inst.
影响因子:
--
作者:
X. Mao;C. Yuan
通讯作者:
X. Mao;C. Yuan
影响因子:
3.5
作者:
T. Gard
通讯作者:
T. Gard
影响因子:
2.4
作者:
F. Hanson
通讯作者:
F. Hanson