新疆大学学报(自然科学版)
新疆大學學報(自然科學版)
신강대학학보(자연과학판)
XINJIANG UNIVERSITY JOURNAL(NATURAL SCIENCE EDITION)
2007年
1期
49-54
,共6页
马慧婵%麦合布拜·热合木
馬慧嬋%麥閤佈拜·熱閤木
마혜선%맥합포배·열합목
时滞离散系统%正周期解%叠合度
時滯離散繫統%正週期解%疊閤度
시체리산계통%정주기해%첩합도
Delayed discrete Lotka-Volterra system%Positive periodic solution%Coincidence degree
考虑带时滞的离散非自治Lotka-Volterra系统.将应用叠合度理论的延拓定理建立正周期解存在的充分条件.
攷慮帶時滯的離散非自治Lotka-Volterra繫統.將應用疊閤度理論的延拓定理建立正週期解存在的充分條件.
고필대시체적리산비자치Lotka-Volterra계통.장응용첩합도이론적연탁정리건립정주기해존재적충분조건.
In this paper, we consider a discrete nonautonomous Lotka-Volterra system with delays. Sufficient conditions for the existence of positive periodic solutions are established by applying the continuation theorem of coincidence degree theory.