摘要
利用重合度理论,我们研究具收获项的广义捕食-被捕食模型,得到系统存在正周期解的充分条件。本文结果推广了已有文献的结果。
The existence of positive periodic solutions for a generalized prey-predator model with harvesting term was studied by using Mawhin’s continuation theorem of coincidence degree theory. Some sufficient conditions were obtained to ensure the existence of positive periodic solutions. The results obtained in this paper generalized the known results.
出处
《应用数学进展》
2017年第3期308-316,共9页
Advances in Applied Mathematics
基金
国家自然科学基金资助项目,项目批准号:60672085
山东省本科高校教学改革研究项目,项目批准号:2015M139。
