Some equivalent conditions for block two-by-two matrices to be nonsingular
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摘要
In this paper, we derive some equivalent conditions for block two-by-two matrices to be nonsingular in an elementary way.
论文关键词：Block two-by-two matrix,Nonsingularity,Rank
论文评审过程：Available online 5 November 2014.
论文官网地址：https://doi.org/10.1016/j.amc.2014.10.047
