次幂等矩阵线性组合的幂等性

摘要

首先给出n阶k次幂等矩阵的定义，然后讨论了幂等矩阵的线性组合的相关定理，并得到一些很好的结果。%This paper first gives the definition of n-by-n idempotent matrix of k,and then discusses the idempotent matrix of the linear combination of the related theorem,and gets some good results.