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
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。
When the period is more than the critical value, the periodic solution loses its stability.
当投放周期大于某个临界值时，这个周期解失去稳定性。
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