摘要
对一类两种群均有收获率食饵种群具有群体防御能力且功能反应为I型的食饵种群系统进行了定性分析.得到奇点的稳定与全局稳定的一些性质.利用Liapunov函数和Poincare-Ben-dixson环域定理,得到了系统至少存在两个极限环的充分条件。
Qualitative analysis of Ⅰ type function response predator-prey system with the harvesting rate for predator and prey which has group defense ability is studied in this paper. Some properties of the singular points of the system and its global ability are discussed. By utilizing the method of Liapunove function and Poincare-Bendixson theorem, the sufficient condition which the system has at least two limit cycles is obtained.
出处
《贵州大学学报（自然科学版）》
2008年第2期120-123,180,共5页
Journal of Guizhou University:Natural Sciences
基金
国家自然科学基金()
甘肃省自然科学基金()
