一类摆动方程概周期解的存在性。
Existence of almost periodic solutions for a class of pendular equations.
证明了极限环和周期解的存在性。
研究了分布时滞竞争模型周期解。
A periodic competitive model with distributed time delays is investigated.
数学家们转而去挑选周期解。
本文讨论退化时滞微分方程的周期解问题。
This paper discusses the problem of periodic solution of singular differential equation with delay.
利用分支理论分析了非平凡周期解的存在性。
Further, the existence of a nontrivial periodic solution is considered by using bifurcation theory.
得到了周期解和准周期解的自相关功率谱线。
Auto power spectrum of the periodic and quasi-periodic solution has been obtained.
系统随着参数的变化，从平衡点分岔出周期解。
The periodic solution can be bifurcated from equilibrium point with the variation of parameters.
本文讨论渐近线性强迫波方程周期解的存在性。
In this paper we discuss the existence of solution of an asymptotically linear wave equation.
本文讨论了一类脉冲神经网络的周期解的指数稳定性。
This paper discusses the exponential stability of periodic solution for impulsive neural networks.
用泛函的方法研究一类二阶微分方程周期解的存在性。
We studied a class of two order differential equations by means of the functional method.
利用拓扑度理论研究了在脉冲条件下这种系统的周期解。
Based on topological degree theory, periodic solutions for this system under impulsive conditions are studied.
当投放周期大于某个临界值时，这个周期解失去稳定性。
When the period is more than the critical value, the periodic solution loses its stability.
在这篇文章中，我们主要研究奇异方程的正周期解问题。
In this paper, we study mainly positive periodic solution to singular equations.
其次讨论了一类弱耦合时滞模型的同步分支周期解问题。
Secondly, the synchronous bifurcating periodic solutions for a weakly coupled model with time delay is studied.
本文利用拓扑度理论研究三阶微分系统反周期解的存在性。
Using topological degree the existence of anti-periodic solutions for third order differential systems is studied.
本文对平均方程的稳态解、周期解以及混沌解进行了研究。
The equilibrium solution, the periodic solution and chaotic solution of averaging equations are examined in this paper.
在带弱核的神经网络模型中，得到了分岔周期解稳定性准则。
Stability criteria for the bifurcating periodic solutions are derived in the neural network with weak kernel.
将应用叠合度理论的延拓定理建立正周期解存在的充分条件。
Sufficient conditions for the existence of positive periodic solutions are established by applying the continuation theorem of coincidence degree theory.
然后用小参数法求出了非线性的非共振周期解和共振周期解。
The nonlinear resonant and non-resonant periodic solutions are obtained by the small parameter methods.
本文主要讨论了差分方程的概周期解与伪概周期解的存在性。
In this paper, we investigate the existence of almost periodic solutions and pseudo almost periodic solutions for difference equations.
研究了一类非线性滞后型泛函微分方程周期解的存在性问题。
The existence problem for a class of nonlinear retarded functional differential equation is researched.
研究抽象空间微分方程周期解的存在性一直是比较困难的问题。
It is a difficult problem studying the existence of periodic solutions of differential equation in abstract Spaces.
给出了带有双侧共振的非线性微分方程周期解存在性的一个新的结果。
A new result about existence of periodic solutions of nonlinear differential equations with double resonance will be given.
本文研究了具有时滞的细胞神经网络周期解存在性和平凡解的稳定性问题。
In this paper, the problem of periodic solutions and stability of Cellular Neural Networks with delay is studied.
对于系数具有周期性时，我们给出了渐进周期解存在并且唯一的必要条件。
In case the coefficients are periodic, we give some sufficient conditions for the existence and uniqueness of asymptotic periodic solution.
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。
We use some elementary methods to demonstrate the existence of a periodic solution for a considerably larger parameter set than considered earlier.
利用指数二分及函数的遍历性，讨论了一类线性微分方程渐近概周期解的存在性。
Using the exponential dichotomy and ergodicity of functions, we discuss the existence conditions of asymptotically almost periodic solution for some linear differential equations.
本文用传统的定性方法和函数方法讨论了调频输入的正弦锁相环路方程的周期解。
In this paper, the periodic solution of sinusoidal PPL equation for FW inputs has been discussed with the traditional qualitative method and Lyapunov functions.
本文用传统的定性方法和函数方法讨论了调频输入的正弦锁相环路方程的周期解。
In this paper, the periodic solution of sinusoidal PPL equation for FW inputs has been discussed with the traditional qualitative method and Lyapunov functions.
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