黑龙江大学自然科学学报
黑龍江大學自然科學學報
흑룡강대학자연과학학보
JOURNAL OF NATURAL SCIENCE OF HEILONGJIANG UNIVERSITY
2006年
4期
512-518
,共7页
广义的捕食者-食饵系统%正周期解%时滞%重合度理论的延拓定理
廣義的捕食者-食餌繫統%正週期解%時滯%重閤度理論的延拓定理
엄의적포식자-식이계통%정주기해%시체%중합도이론적연탁정리
a generalized prey-predator system%positive periodic solution%delays%the continuation theorem of coincidence degree
运用不等式技巧,获得了广义捕食者-食饵系统的先验估计,应用重合度理论的延拓定理,导出了一个具有时滞的广义的捕食者-食饵系统正周期解的存在性准则.
運用不等式技巧,穫得瞭廣義捕食者-食餌繫統的先驗估計,應用重閤度理論的延拓定理,導齣瞭一箇具有時滯的廣義的捕食者-食餌繫統正週期解的存在性準則.
운용불등식기교,획득료엄의포식자-식이계통적선험고계,응용중합도이론적연탁정리,도출료일개구유시체적엄의적포식자-식이계통정주기해적존재성준칙.
A priori estimate for positive periodic solutions is obtained by using inequality technique.By Mawhin's continuous theorem of coincidence degree theory, a criteria for the existence of a positive periodic solution of a generalized prey-predator system with time delays is obtained.
