把成年害虫种群数量作为化学控制的指标,利用病值控制策略使成年害虫种群数量不超过经济临界值,建立了一个两阶段结构害虫治理Filippov模型,并系统地研究了该模型的动力学性质,其中包括模型的滑线区域,真、假平衡点及伪平衡点的存在性和稳定性以及平衡点、切点的分支现象.
In this paper,we take the density of the adults as the index for implementing chemical control strategies.In order to control the adult pest population such that its density does not exceed economic threshold level,we establish a two stage structured pest control Filippov model by using threshold policy control strategy and investigate the dynamics of such a system systematically,including the sliding mode domain,existence and stability of regular equilibria,virtual equilibria and pseudo-equilibria,and the bifurcation phenomena of the equilibria,tangent point and sliding mode.