摘要
研究具有时滞和扩散的Beddington-DeAngelis功能性反应的捕食-食饵模型,利用重和度理论探讨了此模型在周期情形下周期解的存在性.
In this paper,a non-autonomous dispersal-delay predator-prey system with Beddington-DeAngelis functional response is studied.By using the coincidence degree theory,a set of easily verifiable sufficient conditions are derived for the existence of positive periodic solutions of the proposed model.
出处
《宁夏大学学报（自然科学版）》
CAS
北大核心
2007年第3期212-217,共6页
Journal of Ningxia University(Natural Science Edition)
基金
福建农林大学青年基金资助项目(021748)
