给出一类矩阵:斜幂等矩阵(A^2=-A),并利用幂等矩阵的有关秩等式给出了与斜幂等矩阵有关的矩阵的秩等式,从而给出了两个斜幂等矩阵的和,差,乘积仍为斜幂等矩阵的等价条件.
In the paper, we give a class of matrices, that is a srew-idempotent matrix (A^2=-A) and present formulas for the rank with respect to srew-idempont matrices. And then obtain equivalent conditions of the sum,the difference and the product of two srew-idempont matrices are srew-idempont matrix.