• 1. the variational method: 变分法
• 2. The New Variational Method: 新变分法
• 3. the modified variational iteration method: 改进的变分迭代法

• 1.We study these variational problems respectively by the variational method and the theory of variable exponent spaces.
  我们主要运用变分法和变指数空间的理论作为工具研究了这几个问题。
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• 2.By use of the variational method, the potential energy principle of a elastic system on a variable domain is discussed.
  并用该变分法讨论了具有可变区域的弹性系统的势能原理。
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• 3.Imaging formulas of Gaussian beams in nonlinear conical GRIN rod lenses are derived from the variational method and the ABCD law.
  根据变分法和ABCD定律，导出了非线性锥形梯度折射率棒透镜中高斯光束的成像公式。
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