摘要
讨论了捕食种群具有常数收获率 ,并具有 类功能性反应的食饵 -捕食系统 x=rx 1 - xk - ωx2 yx2 + a2y=y - d + cωx2x2 + a2 -μ给出了此系统在第一象限内的有所可能的拓扑结构。并证明了此系统在第一象限内至少可以存在两个极限环。
A class of Ⅲ type functional response predator prey system =rx1-xk-ωx 2yx 2+a 2 =y-d+cωx 2x 2+μa 2-μ is discussed in this paper, in which the predator specties possess a constant harvest rate. We give the whole topological structure of this system in the first quadrant, and proved that the system can exist at least two limit cycles in the first quadrant.
出处
《工程数学学报》
CSCD
北大核心
2000年第1期32-38,共7页
Chinese Journal of Engineering Mathematics
基金
辽宁省自然科学基金
