摘要
幂等矩阵是代数学中的重要矩阵。文章研究了幂等矩阵性质,讨论了幂等矩阵的和、差、积仍为幂等矩阵的充分必要条件。
Idempotent matrix is an important matrix in algebra. This paper studies the properties of idempotent matrix and proposes sufficient and necessary conditions under which the calculations of summation, subtraction and multiplication between idempotent matrix are close.
出处
《常州工学院学报》
2009年第1期67-68,73,共3页
Journal of Changzhou Institute of Technology
关键词
代数学
幂等矩阵
谱分解
特征子空间
algebra
idempotent matrix
spectral decomposition
characteristic subspace
