在用迭代法解线性方程组时,迭代矩阵的谱半径估计在迭代法的收敛性分析中起着重要的作用。该文对一类Baily-Crabtree型对角占优矩阵,给出了迭代矩阵的特征值模的上下界估计。并以此为基础,在一定条件下给出了当是MNM1−M−α严格对角占优矩阵时的的特征值模的上下界估计。并以具体例子说明了所得结果的有效性。 NM1−关 键 词 迭代矩阵; 特征值; 谱半径; 对角占优.For solving the linear system with the iterative method, it is very important to estimate the spectral radius of the iterative matrices. In this paper we present an estimate for bounds of module of eigenvalues of the iteration matrix for a kind of Baily-Crabtree diagonally dominant matrix. Then, under a certain condition, the estimate for bounds of the module of eigenvalues of is presented when is a NM1−MNM1−M−αstrictly diagonally dominant matrix. Numerical examples for illustrating validity of results are presented.
猜您喜欢
推荐内容
开源项目推荐 更多
热门活动
热门器件
用户搜过
随便看看
热门下载
热门文章
热门标签
评论