对称局部双α对角占优矩阵及其应用

Symmetrical Local Double α Diagomally Dominant Matrices and Its Application

引进了2类对称局部双α对角占优矩阵,利用这一概念获得了非奇异H矩阵的几个新的充分条件,并用数值例子说明了所得结果的有效性.

The concepts of two kind symmetrical local double α-diagonally dominant matrices are introduced in this paper. By use these concepts we obtain some new sufficient conditions about nonsingular H matrices, the numerical example illustrate the effectiveness of our results.