In chapter 2 Hamilton principle, Solitons, Reductive perturbation methods and Complete approximate method are presented.
在第二章介绍了哈密顿原理、孤立子、约化摄动方法、完全近似方法等本文主要用到的原理、概念和方法。
参考来源 - 一维非线性弹性杆波动方程的研究Recently, several symmetry-based perturbation methods have been developed to deal with the perturbed PDEs.
最近,为了研究扰动方程的性质,一些以对称为基础的扰动方法相继产生。
参考来源 - 基于非线性扰动反应扩散方程的若干问题·2,447,543篇论文数据，部分数据来源于NoteExpress
Many numerical methods and perturbation methods are used to understand the evolution of ultrashort pulses in single-mode fiber.
许多的数值方法和微扰方法被用于研究超短脉冲在光纤中的演化。
Nowadays, protein coevolution analysis is mainly based on coefficient correlation methods, perturbation methods and parameter test.
当前分析共进化残基的方法主要有基于相关系数的方法、基于微扰理论的方法、参数检验法等。
However, the perturbation methods for distinct or repeated eigenvalues can not be directly used to deal with the vibration modes with close eigenvalues.
然而，已有的孤立特征值摄动法和重特征值摄动法都难于用来解决密集模态的摄动问题。
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