Hlad´ik, M.: Positive semidefiniteness and positive definiteness of a linear para- metric interval matrix (2018)M. Hlad´ik. Positive semidefiniteness and positive definiteness of a linear parametric interval matrix. to appear in a Springer book series, 2016....
Inspired by an equivalent characterization of a twice continuously T-differentiable multi-variable real-valued function being convex, we present a definition of the T-positive semidefiniteness of third-order symmetric tensors. After that, we extend many properties of positive semidefinite matrices to ...
The positive semidefiniteness of a partitioned matrix is characterized in terms of its submatrices. The result is applied to a variety of problems concerning Löwner ordered matrices, which need not be partitioned themselves. PA Bekker - 《Linear Algebra & Its Applications》 被引量: 20发表: 19...
What is positive semidefiniteness and why is it important for portfolio optimization?Positive Semi-De...
Howtocheckpositive-semide,niteness? •Modi,edSylvester:det(Hk)>0,∀k=1,...,n−1anddet(H)≥0⇒ Hpos.-semidef. •Completingthesquares:Hpos.-semidef.⇔f(x)=xTHx=sumofsquares. •Hpos.- .-semidef.⇔H+,Ipos.- .-def.∀,>0. ...
1. A criterion for the real part positive semidefiniteness matrix is presented,and the algorithm for this criterion is given. 给出了实部半正定矩阵的一种判定方法 ,并给出了该判定方法的算法 。2) positive semi definite real part 实部半正定解 1. s: By analyzing the necessary and sufficient ...
Positive Semi-Definite指的是x.T*Q*X >= 0因为PSD确保了MVO会有一个unique global minimumReferences...
5) real part positive semidefiniteness matrix 实部半正定 1. A criterion for the real part positive semidefiniteness matrix is presented,and the algorithm for this criterion is given. 给出了实部半正定矩阵的一种判定方法 ,并给出了该判定方法的算法 。6) real semi-positive definite matrix 实正...
A simplified proof of a theorem on the difference of the moore–penrose inverses of two positive semi–difinte matricesdoi:10.1080/03610928608829289Simplified proofs are given of a standard result that establishes positive semi–definiteness of the difference of the inverses of two non–singular ...
4) generalized symmetric positive semidefiniteness 广义对称半正定 5) Generalized complex positive semidefinite 广义复半正定 6) Generalized positive 广义半正定阵 补充资料:半…半… 分别用在意义相反的两个词或词素前面,表示相对的两种性质或状态同时存在:～文～白ㄧ～真～假ㄧ～信～疑ㄧ～推～就。