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
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