Abstract
The purpose of this paper is twofold: We first present a sufficient condition for testing strictly generalized diagonally dominant matrices (i.e., H-matrices) and we claim that our criterion is superior to the existing ones. We then show that the proper subset of the H-matrices determined by the condition preserves the closure property under the Schur complement operation.
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The work of the first author was supported in part by National Natural Science Foundation of China (10671164) and Science and Research Fund of Hunan Provincial Education Department (06A070). The work of the second author was supported by the NSU-FCAS Faculty Development Fund and Mini-Grant.
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Liu, J., Zhang, F. Criteria and Schur complements of H-matrices. J. Appl. Math. Comput. 32, 119–133 (2010). https://doi.org/10.1007/s12190-009-0237-6
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DOI: https://doi.org/10.1007/s12190-009-0237-6