阅读量: 334 作者: 孙玉山,白红 展开 摘要: In many important partial differential equations, matrices are involved. In order to study these equations, we need the estimations of the matrices in L~2 norm. In this paper, we give some estimations of some matrices in some certain "inner" ...
通常意义下,广义逆并不是矩阵的逆,它不是方阵,也不要求G−G =GG−=I。(2)广义逆G+的主要性质如下:①G+是一个g逆,因此m=G+d是相容线性方程组Gm=d的一个特解,m=G+d+(I−G+G)C是一般解,C是与m同维的任意向量;②(G+)T=(GT);③(G+)+=G;④由G+的定义可知,G+是最小范数g逆。因此...