scalar matrix

One sufficient and necessary conditions of scalar matrix;

纯量矩阵的一个充要条件

The inverse problems of linear equations Ax=b in the classes of invertible matrix,orthogonal matrix,simple matrix,circular matrix and counter circular matrix are discussed in this paper.

讨论了线性方程组Ax=b的反问题在可逆矩阵、正交矩阵、单纯矩阵、循环矩阵和反循环矩阵中的求解问题。

Study on the relationship of purematrix and homothetic transformation;

关于纯矩阵与位似关系问题研究