Positive semi - definite matrices are positive definite if and only if they are nonsingular.

正半定矩阵是正定的,当且仅当它们是非奇异矩阵.

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In this paper, several practical sufficient conditions for nonsingular H - matrices are given.

本文给出了新的非奇异H矩阵的简捷而实用的充分条件.

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An expression of the generalized eigenvector of adjoint matrices for nonsingular matrix A is derived.

给出了非奇异矩阵A的伴随的广义特征向量的表达式.

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Generalized strictly diagonally dominant matrices and nonsingular M - matrices are two kinds of important matrices.

广义严格对角占优矩阵与非奇M矩阵是非常重要的两类矩阵.

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