| 1. | The regulation effect of cannibalism in the dynamics of the population model 自相食对种群的调节效应 |
| 2. | Studies on population model 对人口模型的研究 |
| 3. | On stability and chaos of discrete population model for a single - species with harvesting 一类具有收获的离散单种群模型稳定性与混沌 |
| 4. | V ) the asymptotical behavior of population models with diffusion is studied 五、研究了一般的具有周期环境扩散种群模型的渐近性态。 |
| 5. | Thus some earlier results of population models with delays are extended to diffusion population models 从而把有关时滞系统的相关结果推广到了扩散系统。 |
| 6. | This paper is mainly devoted to investigate traveling wave solutions and the asymptotic speed of a population model 本文主要讨论了一类人口模型的行波解与渐近波速。 |
| 7. | The population model is also called the true model , to allow for the possibility that we might estimate a model that differs from ( 3 . 31 ) 总体模型亦称真实模型,因此我们实际估计的模型有可能和真实模型不同。 |
| 8. | This suggests that stage structure may be a cause of periodic oscillation of populations and can make the behavior of population models more complex 这说明阶段结构可能是种群数量周期扰动的原因,从而使得种群模型的性态更加复杂。 |
| 9. | Wendi wang studied the global stability of discrete population models with time delays and fluctuating environment . though those models studied by wcndi wang include our model in this chapter , during our proof , we dismiss the conditions inf a ( k ) > 0 for i = 1 , 2 王稳地研究了具有时滞和振动环境的离散人口模型的全局稳定性,虽然此模型包含了我们在本章中所研究的模型,但是在我们的证明过程中去掉条件( i = 1 , 2 ) 。 |
| 10. | Using better prior estimate , the theory of brower degree and coincidence degree , the existence of positive periodic solution of a kind of neutral population model with multiple delays was studied , some sufficient conditions were obtained , which improve of the relational theorem 摘要通过更精确的先验估计,利用重合度理论中的连续定理,研究了一类时滞种群模型的周期解,获得了这类模型存在正周期解的充分条件,所得结果推广了有关结论,并使条件有所减弱。 |