In the end the propagation rule of wave front set under linearsubstitution mapping is given.
最后揭示了线性变量替换映射下波锋集的传播规律。
2
Using the linear space in linearsubstitution, has given on the complex field the matrix one form, and gave this kind of decomposition form to ask the law specifically.
利用线性空间上的线性变换，给出了复数域上矩阵的一种形式，并给出了这种分解形式的具体求法。
3
With variable substitution, several kinds of linear differential equations are solved and several sufficient and necessary conditions are obtained.