严格双对角占优矩阵‖A^(-1)‖_∞的上界估计

An upper bound for ‖A^(-1)‖_∞ of strictly doubly diagonally dominant matrices

设A为严格双对角占优矩阵,给出了‖A-1‖∞的上界估计,特别地,当A为严格对角占优矩阵,改进了现有的相关结果.

Let A be a strictly doubly diagonally dominant matrix, we estimate an upper bound for ‖A^-1‖∞. In particular, for a strictly diagonally dominant matrix, we improve some related results.