摘要
利用分块矩阵的思想研究了两个群可逆矩阵M,N∈Cn×n在MN=NM和可逆矩阵NMM#±MNN#条件下的线性组合M±N仍然是一个可逆矩阵.
Using the thinking of the block matrix, the linear combination of two group invertible matrices M,N∈C^n×n still was a group invertible matrix was studied, which under the conditions of MN= NM and the invertible matrix NMM#±MNN#.
出处
《兰州文理学院学报（自然科学版）》
2014年第1期30-31,37,共3页
Journal of Lanzhou University of Arts and Science(Natural Sciences)
关键词
群可逆
线性组合
分块矩阵
group invertible matrices
linear combinations
block matrix.
