摘要
本文导出了实方阵是Ｐ_Ｓｎ类广义正定矩阵的充要条件．由它给出了Ｐ_Ｓｎ类广义正定矩阵的Ｋｒｏｎｅｃｋｅｒ积仍属Ｐ_Ｓｎ２类的若干充要条件．
In this paper. the necessary and sufficient condition have been dirtyed for an n-th order real matrix to be generalized positive definite matrices (Psn ).By means of this condition. some necessary and sufficient conditions for Kronecker product of generalied positive definite matrices (Psn)belong to Psn2was also given.
