The resonant solution on forced oscillationof A2B model is given and the modes of vibration on resonant frequency are discussed.
给出了A2B模型受迫振动的两个共振解，讨论了共振频率下的振动模式。
2
The solutionof the nonlinear wave equation describing propagation of a femtosecond laser pulse with duration of several optical oscillation periods in a nonlinear fiber is presented.
给出了描述具有几个光振荡周期的飞秒激光脉冲在非线性光纤中传输方程的解。
3
The nonexistence theorem of radial positive solution, sufficient conditions ofoscillation and boundedness of radial solution and estimation for bounded solution are given in this paper.