引入了双加权亚半正定矩阵的概念,是加权亚半正定矩阵的推广,给出了双加权亚半正定矩阵与亚半正定矩阵之间的关系和双加权亚半正定矩阵的判别定理。
It introduces the concept of two weighted sub-positive semi-definite matrices, which is an extension of weighted sub-positive semi-definite matrices. It deals with the relationship between two weighted sub-positive semi-definite matrices and weighted sub-positive semi-definite matrices, and gives a criteria for two weighted sub-positive semi-definite matrices.