CAJ | 학술논문

研究了弱链对角占优M矩阵A的逆矩阵A-1的元素，与‖A-1‖￥界的估计问题。利用迭代的方法，给出了A-1元素收敛的上，下界序列，同时也得到了‖A-1‖￥单调递减且收敛的上界序列。这些新的结果包含了关于该类问题已有的研究结果。
연구료약련대각점우M구진A적역구진A-1적원소，여‖A-1‖￥계적고계문제。이용질대적방법，급출료A-1원소수렴적상，하계서렬，동시야득도료‖A-1‖￥단조체감차수렴적상계서렬。저사신적결과포함료관우해류문제이유적연구결과。
This paper studies the elements of the inverse matrix A-1 of weakly chained diagonal dominance M matrix A and the estima-tion problem of‖A-1‖￥ bound, which uses the iterative method to give the sequences of upper and lower bounds of A-1 convergence on the elements, and at the same time, to obtain the sequence of upper bound of ‖A-1‖￥ monotone decreasing and convergence. These new results include the existed findings concerning this kind of problems.