摘要
运用迭代法研究时滞微分方程N'=r(t)N(t)(1-N(t-τ)/1+λN(t-τ)),t≥0的正解的渐近性, 给出了保证每一正解N(t)趋于1的充分条件.
The authors consider delay differential equationN'=r(t)N(t)(1-N(t-τ)/1+λN(t-τ)) ,t≥0. By a new method, they obtain new sufficient condition for every positive solution to tend to l.
出处
《黑龙江大学自然科学学报》
CAS
2002年第1期10-013,共4页
Journal of Natural Science of Heilongjiang University
基金
湖南省教委科研基金资助项目(99C12)