幂等矩阵与秩幂等矩阵的充要条件
The Necessary and Sufficient Conditions for Idempotent Matrix and Rank-idempotent Matrix
摘要
满足A2=A的n阶方阵A称为幂等矩阵,它是矩阵环Mn(F)的一个幂等元;满足r(A)=r(A2)的n阶方阵A称为秩幂等矩阵。它们与空间的分解、不变子空间的研究有密切关系。利用线性空间的理论方法研究幂等矩阵与秩幂等矩阵的性质,分别得到与它们等价的一些充要条件。
Abstract
A matrix of satisfying A= A2 is called idempotent matrix.It is an idempotent element of matrix ring Mn(F).A matrix of satisfying r(A)= r(A2) is called rank-idempotent matrix.They are closely related to decomposition of space and invariant subspace.Some pr
关键词
幂等矩阵/秩幂等矩阵/矩阵的核/矩阵的列空间/矩阵的秩Key words
idempotent matrix/rank-idempotent matrix/kernel of matrix/column space of matrix/rank of matrix引用本文复制引用
出版年
2011