摘要
研究了一类具HollingII型功能性反应的捕食者一食饵系统非平凡周期解的存在性,其中捕食者种群具有密度制约,食饵种群服从Hallam增长,得到了存在正周期解的充分性条件.
The existence of positive periodic solutions for a predator-prey system with Holling II type functional response is researched, in which predator has density-dependent effect and the prey obeys the growth law of Hallam. The sufficient conditions of positive periodic solution are obtained.
出处
《北华大学学报(自然科学版)》
CAS
2010年第1期19-23,共5页
Journal of Beihua University(Natural Science)
基金
国家自然科学基金资助项目(10771048)