摘要
研究一类非自治的具有时滞和基于比率且有Beddington-DeAngelis功能性反应的两种群捕食者-食饵周期系统,利用Mawhin重合度理论建立了这类系统的正周期解存在的一个充分性判据.
In this paper, a class of predator-prey system with delayed and ratio-dependent is studied. By using the continuation theorem based on coincidence degree theory, establishes the existence result of positive periodic solution for the periodic predator-prey system with Beddington-DeAngelis functional response. A sufficient condition is derived about it.
出处
《哈尔滨商业大学学报(自然科学版)》
CAS
2007年第3期382-384,共3页
Journal of Harbin University of Commerce:Natural Sciences Edition
基金
黑龙江省教育厅科学技术研究项目(11513043)