期刊论文

中文

数学理论与应用

1006-8074

2017

37

3

1-16

本校为第一机构

本文首先利用共轭梯度及矩阵性质,构造迭代算法,并证明算法的收敛性,同时对该算法当方程相容时收敛到问题的极小范数解进行证明.然后,对该算法进行细微修改,应用于相应的最佳逼近问题.最后给出相关的数值实例,验证算法的有效性.

In this paper an iterative algorithm for solving the generalized Sylvester matrix equations is firstly constructed by using the conjugate gradients and the matrix properties and the convergence of the algorithm is proved.Furthermore,when the equation is compatible the algorithm is proved to converge to the minimal norm solution to the problem.Then the algorithm is modified slightly to obtain the corresponding optimal approximation.Finally,numerical...