When the third order dispersion effect exists, the more time delay difference is produced and the dispersion waves are produced at both the front and back edge of the pulse.

当只有三阶色散时，除了产生较大时延差外，还会在两个偏振脉冲的前后沿产生较大的色散波。

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This thesis mainly studies the problem of the boundary value of second-order and third-order nonlinear and linear difference equation.

本篇硕士论文主要研究了一般形式的二阶和三阶非线性和线性差分方程的边值问题。

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We studied the asymptotic behavior of solutions to third order Poincaré difference equation whose characteristic equation has multiple roots.

研究了三阶Poincaré差分方程解的渐近性质。这种差分方程对应的常系数线性差分方程的特征方程有重根。

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