本文建立了一个新的捕食者-食饵-者模型,研究了瓢虫、蚜虫和蚂蚁之间的关系.对该模型,我们做了持久性分析,并对特征方程多了分析和研究.最后利用李雅普诺夫函数对该系统的正平衡点的全局稳定性做了研究.
In this paper,we built a new predator-prey-mutualist model to study the relationship of ladybird beetle,aphid and ant.After analyzing the permanence and characteristic equations,we studied the globally asymptotically stable of the positive equilibrium point of the system using Liapunov function theory.