摘要
讨论了一类中立型微分方程最终正解的存在性和不存在性 ,一些已知的结果被扩充和改进 .
In this paper, some nonexistence and existence criteria for eventually positive solutions of a class of neutral differential equations are considered. Some known results are improved.
出处
《雁北师范学院学报》
2003年第2期1-4,共4页
Journal of Yanbei Teachers College