浙江科技学院学报
浙江科技學院學報
절강과기학원학보
JOURNAL OF ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
2006年
1期
1-7
,共7页
重合度%Predator-Prey系统%正周期解%阶段结构
重閤度%Predator-Prey繫統%正週期解%階段結構
중합도%Predator-Prey계통%정주기해%계단결구
coincidence degree%Predator-Prey system%periodic positive solution%stage structure
研究了一类时滞Predator-Prey系统,其中Prey种群是具有两个生命阶段的种群,即幼年阶段和成年阶段.Predator种群只能捕食Prey幼年种群.通过应用Gaines和Mawhin重合度理论的连续函数定理,给出了系统正周期解存在的充分条件.
研究瞭一類時滯Predator-Prey繫統,其中Prey種群是具有兩箇生命階段的種群,即幼年階段和成年階段.Predator種群隻能捕食Prey幼年種群.通過應用Gaines和Mawhin重閤度理論的連續函數定理,給齣瞭繫統正週期解存在的充分條件.
연구료일류시체Predator-Prey계통,기중Prey충군시구유량개생명계단적충군,즉유년계단화성년계단.Predator충군지능포식Prey유년충군.통과응용Gaines화Mawhin중합도이론적련속함수정리,급출료계통정주기해존재적충분조건.
A Predator-Prey system with time delay is considered. There are, immature and mature, two stage for prey species in the system. By using the continuation theorem of Gaines and Mawhin's coincidence degree theory, a sufficient condition is derived for the existence periodic positive solution.
