摘要
在线性代数与矩阵论的教材中,经常提到某些著名秩不等式。但使秩不等式成为等式的条件一般是不加考虑的。本文对某些著名秩不等式给出了那样的条件。
It is well known that some famous rank inequalities are mentioned frequently in the textbooks of linear algebra and matrix theory. But the conditions which guarantee the rank ineqalities to become equalities are not
considered in general. These conditions for some famous rank inequalities are presented in this paper.
关键词
秩不等式
线性代数
矩阵
rank inequalities
linear algebra
matrix theory