假定约束是可行、规范的，对于目标函数为正定或半正定的情形，得到了全局最优解的充要条件。
Under the cases that the objective function is positive definite or positive semidefinite, the necessary and sufficient conditions to characterize global optimal solution are obtained.
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。
The author introduce the method of applying positive semi-definite quadratic form to prove inequality by giving several examples.
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。
A criterion for the real part positive semidefiniteness matrix is presented, and the algorithm for this criterion is given.
应用推荐