利用分块矩阵乘法,讨论了共轭对合矩阵的一些性质以及与准对角矩阵、次准对角矩阵、K-可逆矩阵的联系,获得了一些新的结论.%In this paper,based on block matrix multiplication,we discuss some properties of coninvolutory matrix and the relation of coninvolutory matrix and almost diagonal matrix,almost sub-diagonal matrix,K-invertible matrix,generalize some new conclusions.
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