In an earlier paper the authors established a result to select subsets of a matrix that are as "non-singular" as possible in a numerical sense. The major result was not constructive. In this note we give a constructive proof and moreover a sharper bound. Original language English Place of Publication Eindhoven Publisher Technische Universiteit Eindhoven Number of pages 9 Publication status Published - 2008 Publication series Name CASA-report Volume 0829 ISSN (Print) 0926-4507
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Hoog et al. (2008) studied this question.