摘要
判别一个矩阵是否为广义严格对角占优矩阵具有一定应用价值.本文根据广义严格α-对角占优矩阵和广义严格对角占优矩阵的关系,得到了一个新的判别广义严格对角占优矩阵的准则.最后通过数值例子说明了这种方法的优越性.
It is useful to know whether a matrix is a generalized strictly diagonally dominant matrix.According to the relations of generalized strictlyα-diagonally dominant matrix and generalized strictly diagonally dominant ma⁃trix,we obtained new criteria for identifying a generalized strictly diagonally dominant matrix.Advantages are il⁃lustrated by numerical examples.
作者
肖丽霞
XIAO Li-xia(College of Mathematics and Physics,Inner Mongolia University for Nationalities,Tongliao 028043,China)
出处
《内蒙古民族大学学报（自然科学版）》
2020年第6期461-464,482,共5页
Journal of Inner Mongolia Minzu University：Natural Sciences
基金
国家自然科学基金项目(11961053)。
关键词
非奇异H-矩阵
Α-对角占优矩阵
正对角矩阵
迭代法
Nonsingular H-matrix
α-diagonally dominant matrix
Positive diagonal matrix
Iterative method
