排序方式: 共有33条查询结果,搜索用时 15 毫秒
31.
行块矩阵M-P逆的充要条件 总被引:1,自引:1,他引:0
通过使用矩阵秩方法,证明了如下结果:[A,B]+=[αA+βB+]βAA*αBB*.[A,B][A,B]+=αAA++βBB+R(A)=R(B).这里,α+β=1,α>0,β>0.这两个结果是2007年田永革在国际线性代数学会会刊中获得的相应结果的推广. 相似文献
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TLS和LS问题的比较 总被引:4,自引:0,他引:4
There are a number of articles discussing the total least squares(TLS) and the least squares(LS) problems.M.Wei(M.Wei, Mathematica Numerica Sinica 20(3)(1998),267-278) proposed a new orthogonal projection method to improve existing perturbation bounds of the TLS and LS problems.In this paper,wecontinue to improve existing bounds of differences between the squared residuals,the weighted squared residuals and the minimum norm correction matrices of the TLS and LS problems. 相似文献