讨论一类考虑食饵具有避难所的三种群食物链扩散系统.首先研究解的全局存在性与有界性,其次利用线性化方法研究了非负平衡点的局部稳定性,最后利用Lyapunov函数方法研究了其正平衡点的全局渐近稳定性.
The three-species food-chain model with prey refuge and diffusive term is considered in this paper.First the global existence and boundedness of solutions are studied,then the local asymptotic stability of nonnegative equilibrium points is investigated by linearization method,finally the global asymptotic stability of positive equilibrium point is obtained due to the Lyapunov function technique.