摘要
讨论复方阵的次正定性 ,给出判别准则及次正定阵的Hadamard积、Kronecker积仍是次正定阵的充要条件 .
In this paper, sub positivity for complex matrices is discussed. Criterion for a complex matrix to be sub positive is given. Moreover, some necessary and sufficient conditions for the Hadamard or Kronecker product of two sub positive matrices to be sub positive are obtained.
出处
《四川师范大学学报（自然科学版）》
CAS
CSCD
2001年第5期447-450,共4页
Journal of Sichuan Normal University（Natural Science）
