摘要
讨论了平方幂零矩阵A的某些性质,且利用A的对称分支R(A)和反对称分支S(A)的特征值之间的关系,给出E+A和d iag(μ1,μ2,…,μn)+A以及一类分块矩阵D是亚正定矩阵的充分条件.
Some important properties of square nilpontent matrix A are studied. Based on the relations between the eigenvalues of R(A ) and S(A ) , the sufficient condition of metapositive definite matrix for E +A,diag(μ1,μ2,...,μn) +A and block matrix D is presented.
出处
《华南师范大学学报(自然科学版)》
CAS
2006年第1期25-30,共6页
Journal of South China Normal University(Natural Science Edition)
关键词
亚正定矩阵
平方幂零矩阵
奇异值
square nilpontent matrix
metapositive definite matrix
singular value