摘要
本文定义了列u矩阵及矩阵的列u相似等概念，并讨论了它们的性质，推广了矩阵的相似及u相似的一些结论。
In this paper, column Unitary matrix, column similarity of matrices and column unitarity of matrices were defined, use these conceptions to give some result, and some result were extenoled on similarity of matrices.
关键词
列u矩阵
列u相似
矩阵
列相似
column unitary matrix, column Unitary similarity of matrices
