| 1. | The almost periodic solution to quadratic differential equations with almost periodic coefficients
二次概周期系数微分方程的概周期解 |
| 2. | Study for three mixed species model with holling founctional response and periodic coefficents
类功能反应且周期系数的三种群混和模型的研究 |
| 3. | The property of solutions for a class of higher order linear differential equations with periodic coefficients
一类高阶周期系数线性微分方程解的性质 |
| 4. | Permanence and global stability for nonautonomous predator - prey systems with peridic coefficients and type holling functional response
类功能反应且周期系数的非自治捕食扩散系统的持久与全局渐近稳定性 |
| 5. | Periodic and almost : periodic solutions to a class of predator - prey and diffusion systems with holling ' s type response model and periodic coeffcients
类功能反应且周期系数的非自治捕食扩散系统的周期解和概周期解 |
| 6. | Our results include almost all nonautonomous single - specie harvesting models with periodic coefficients ; for example : logistic model , gompertz model . gilpin model . aynala model
其所得结果包括了许多常见的具周期系数的非自治收获模型，如： logistic型， gompertz型， gilpin型， aynala型等。 |
| 7. | Abstract : in this paper , we discuss stability of two order linear differential equations with periodic coefficient and obtain some criterias for recogniting stability
文摘:讨论周期系数二阶线性微分方程的稳定性问题.给出了判定稳定性较精确的方法，利用这个方法，获得了判定稳定性简洁而实用的若干准则 |
| 8. | Last , in chapter 3 , we consider the discrete - time competition model with periodic coefficients where p > 0 is constant , - periodic sequences . the persistence of the positive solutions of ( 3 ) and sufficient conditions for the existence and stability of the positive periodic solution of ( 3 ) are obtained , our results extended the corresponding work in [ 17 , 18 , 19 ]
第三章，考虑具周期系数的单物种竞争模型其中{ ( n ) } ， { ( n ) }都是以为最小正周期的周期序列，研究了该方程的正解的持久性与周期解的存在性和稳定性，所得结论拓广了[ 17 ， 18 ， 19 ]中的工作。 |
| 9. | 3 . in the paper , we consider gordon theory of a class of single - species ecological systems with periodic coefficients on open - access fishery , and set up the ordinary economic equilibrium conditions of the single - species and get globally asymptotically stable economic equilibrium ; the over - exploitation of the system and the modification on economic equilibrium conditions by opportunity cost are investigated
考虑了一类具周期系数的单种群生态系统的gordon理论，建立了单种群系统最为普遍的经济均衡条件，从而找到了全局渐近稳定性的经济均衡点；并对系统因捕获造成的过度开发，以及对gordon经济均衡条件的改进作了相应研究。 |
| 10. | In the latter , the non - linear dynamic stabilities of the single rotor system with a crack are researched . the non - linear differential equ ations have periodic coefficients . and using the stability theory of the periodic motion , it is discussed that the thickness of the disk , the position of the disk and the position of the crack have effects on the dynamic stabilities
首先简单讨论了含裂纹的单盘转子系统的线性动力稳定性，并与相关的文献作出比较，验证了等效线弹簧模型的正确性和精确性；然后，讨论了含裂纹的单盘转子系统的非线性动力稳定性，得到了一组具有周期系数的非线性微分方程组，且利用周期运动的稳定性理论进行了求解，深入讨论了盘的厚度，盘所处的位置和裂纹所处的位置对转子系统动力稳定性的影响。 |
