简介:Inthispaper,aperiodicHollingⅡpredator-preymodelwithimpulsiveeffectisinvestigated.ByapplyingtheFloquettheoryoflinearperiodicimpulsiveequation,somesufficientconditionsareobtainedforthelinearstabilityandinstabilityoftrivialandsemi-trivialperiodicsolutions.Moreover,weusestandardbifurcationtheorytoshowtheexistenceofcoexistencestateswhicharisenearthesemi-trivialperiodicsolution.Asanapplication,wealsoexaminesomespecialcaseofthesystemtoconfirmourmainresults.
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简介:研究具有两捕食和一食饵三种群系统并有Holling功能反应且周期系数的三维模型,得到该系统存在唯一、全局渐进稳定周期解的充分条件.