POPULATION MODEL;
PERIODIC SOLUTION;
OSCILLATION;
NONOSCILLATION;
D O I:
10.1090/qam/1262316
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
The existence of a positive periodic solution for N'(t) = N(t) [a(t) + b(t)N(t - momega) - c(t)N2(t - momega] is established. Sufficient conditions are given for the periodic solution to be globally attractive.