指出了以同一方程作为约束条件及欧拉方程的两个泛函之间的转换关系。
Conversion relations between two variational functionals that take respectively same equation as their constrain condition and Euler's equation are obtained.
本文是关于非线性响应理论的文章的前半部分。由闭路格林函数的生成泛函的展开式及闭路格林函数的变换关系导出非线性响应的一般表示式。
By using the generating functional and the transformations for different forms of the closed time path Green's functions, the general equations on nonlinear response are derived.
′条件与泛函的强制性之间的关系。
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