先利用不等式理论给出严格α-对角占优矩阵的充要条件,再根据严格α-对角占优矩阵的性质证明得出非奇异H-矩阵的简单实用判定方法,并通过数值算例验证了结果的有效性和优越性.
Based on the theory of inequality,the necessary and sufficient conditions of strictlyα-diagonally dominant matrix were presented.According to the properties of strictlyα-diagonally dominant matrix,simple and practical criteria to judge nonsingular H-matrix were obtained.The validity and superiority of the results were verified by a numerical example.