矩阵core-EP逆和DMP逆的广义Cayley-Hamilton定理（英文）

Generalized Cayley-Hamilton theorem for core-EP inverse matrix and DMP inverse matrix

利用经典的Cayley-Hamilton定理,给出了矩阵core-EP逆和DMP逆的多项式方程.设奇异矩阵A的特征多项式为p_A(s)=det(_sE_n-A)=s^n+a_(n-1)s_(n-1)+…+a_1s,则f_A(A~⊕)=0和f_A(A^(d,+))=0,其中f_A(A)=a_1x^n+a_2x^(n-1)+…+a_(n-1)x^2+x,A~⊕和A^(d,+)分别是A的core-EP逆和DMP逆.并进一步讨论了A^D∈C_(n,n)和A~⊕∈C_(n,n)的特征多项式的性质.

By using the classical Cayley-Hamilton theorem,the polynomial equations of the core-EP inverse matrix and Drazin-Moore-Penrose(DMP)inverse matrix are given,respectively.If the characteristic polynomial of the singular matrix A,p A(s)=det(s E n-A)=s n+a n-1 s n-1+…+a 1 s,is given,then f A(A)=0 and f A(A d,+)=0 in which f A(A)=a 1 x n+a 2 x n-1+…+a n-1 x 2+x,and A and A d,+are the core-EP inverse and the DMP inverse of A,respectively.Furthermore,some properties of the characteristic polynomials of A D∈C n,n and A∈C n,n are derived.