摘要
建立了一类3种群食饵捕食时滞系统,该系统由两类食饵和一类捕食者组成,并且能很好地反映捕食者与食饵之间的相互关系。接着研究了该系统解的存在性,该系统的解在满足初值条件下存在并且保持恒正。接着又研究了该系统的一致持久性问题,并给出该系统一致持久生存的充分条件和证明。最后举例论证了该结论的可行性。
A new prey-predator system is proposed, which is constituted of two prey and one predator, and the prey-predator system is presented by this modle. Next, the existence of the positive solution for this system is studied. In addition, the persistence of this mode is given and proved. The example is given to illustrate the results.
出处
《北京联合大学学报》
CAS
2010年第1期65-66,76,共3页
Journal of Beijing Union University
基金
甘肃省自然科学基金项目(096RJZE106)
关键词
食饵捕食系统
持久性
模型
prey-predator system
persistence
model
