These properties are similar to properties of positivesemi-definite matrices and positive definite matrices.
这些性质类似于通常的半正定矩阵及正定矩阵的性质。
2
The author introduce the method of applying positivesemi-definite quadratic form to prove inequality by giving several examples.
通过给出几个实例,介绍了利用二次型的半正定性证明不等式的方法。
3
From given eigenvalues and eigenvectors, the inverse eigenvalue problem of symmetric ortho-symmetric positivesemi-definite matrices and its optimal approximate problem were considered.