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第1期基础科学平面自治系统极限环的存在性及解的有界性························……李森林黄立宏(1)二阶中立型泛函微分方程非振动解的存在性定理·······~·····················……庚建设(9)关于泛函的一些性质···
Issue 1 Basic Science Existence and Limitations of Limit Cycles in a Plane Autonomous System ....................... Li Senlin Huang Lihong (1 ) Existence Theorems of Nonoscillatory Solutions for Second Order Neutral Functional Differential Equations ············································································ 9) Some Properties About Functional Letters