almost periodic solution [数] 殆周期解
half periodic solution [数] 半周期解
Coupled periodic solution 耦合周期解
existence of periodic solution 周期解的存在性
We use some elementary methods to demonstrate the existence of a periodic solution for a considerably larger parameter set than considered earlier.
我们用初等方法证明了周期解的存在性，并且扩大了文献中给出的参数范围。
In this paper, we study mainly positive periodic solution to singular equations.
在这篇文章中，我们主要研究奇异方程的正周期解问题。
Auto power spectrum of the periodic and quasi-periodic solution has been obtained.
得到了周期解和准周期解的自相关功率谱线。
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