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H-矩阵的一些性质(英文)

Some Properties for H-Matrices
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摘要 给出了与H -矩阵相关的两个等价性定理 .定理之一陈述了Schur补与原矩阵之间的一个等价条件 .另一定理描述了对角元为正的对称的H -矩阵与它的比较矩阵之间的一个等关系 . Two equivalence theorems related to H-matrices were discussed.One stated a equivalent condition between the Schur complement and the original matrix.Another described a equivalent relation between the original matrix A being a symmetric H-matrix with positive diagonal entries and its comparison matrix <A>hese properties are new and very useful in many practical applications.
出处 《湖南文理学院学报(自然科学版)》 CAS 2004年第1期3-4,47,共3页 Journal of Hunan University of Arts and Science(Science and Technology)
关键词 H-矩阵 SCHUR补 对称正定矩阵 对角元 H-matrices Schur complement symmetric positive definite matrices
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