电子科大矩阵理论平时作业-论文

数值时单调乏味。一般情况下，集的形式由

的函数。通过求解最小化问题得到矩阵Q’在上的投影

给出，其中是一个给定

可以通过拉格朗日乘法器得到。但是，在不是凸面的情况下，可能会出现局部最小值。在这种情况下，应该提出高效的综合方法来结局最小化问题。

收敛的可行点 由于存在非凸集，一个可行点的连续投影算法的收敛性不能保证任何的初步估计。虽然用提供的的迭代点开始是个明智的选择（例如，

在R-空间方法，或者

在H-空间方法），但它并不能保证收敛。因此，收敛性问题值得进一步调查。

参考文献

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