On nonsingularity of block two-by-two matrices
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Publication:2435393
DOI10.1016/j.laa.2013.06.004zbMath1283.15009OpenAlexW2080339368MaRDI QIDQ2435393
Publication date: 19 February 2014
Published in: Linear Algebra and its Applications (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1016/j.laa.2013.06.004
Numerical solutions to overdetermined systems, pseudoinverses (65F20) Theory of matrix inversion and generalized inverses (15A09) Vector spaces, linear dependence, rank, lineability (15A03)
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