摘要
本文应用Fourier分析的方法，改进了文〔1〕的主要结果。即把文〔l〕中定理1到定理4的条件|b_2|＋|c_2|＜2^(1/2)改讲为|b_2|＋|c_2|≠1．并指出用本文的方法可以类似研究高阶混合型周期系统的周期解。
The main results of paper (1) are improved by means of Fourier analytic method,that is,a condition｜b_2｜+｜c_2｜≠1 instead of the condition｜b_2｜+｜c_2｜∠2^(1/2)/2 from Theorem 1 to Theorem 4 of paper [1].It is indicated that the periodic solutions of the high-order composite type periodical systems can be studied similarly by means of this paper's method.
出处
《生物数学学报》
CSCD
北大核心
1994年第3期204-209,共6页
Journal of Biomathematics
基金
山东省自然科学基金
