Is there a specific name for matrices with nonsingular principal submatrices? - MathOverflow most recent 30 from http://mathoverflow.net 2013-05-21T03:14:41Z http://mathoverflow.net/feeds/question/5198 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/5198/is-there-a-specific-name-for-matrices-with-nonsingular-principal-submatrices Is there a specific name for matrices with nonsingular principal submatrices? Shake Baby 2009-11-12T15:54:33Z 2009-12-18T07:36:21Z <p>Is there a specific name for matrices with nonsingular principal submatrices?</p> http://mathoverflow.net/questions/5198/is-there-a-specific-name-for-matrices-with-nonsingular-principal-submatrices/5298#5298 Answer by Ben Webster for Is there a specific name for matrices with nonsingular principal submatrices? Ben Webster 2009-11-13T02:14:27Z 2009-11-13T02:14:27Z <p>"matrices with Gauss decomposition" is the shortest thing that comes to mind. I mean other than \$B_-TB_+\$.</p> http://mathoverflow.net/questions/5198/is-there-a-specific-name-for-matrices-with-nonsingular-principal-submatrices/5988#5988 Answer by Federico Poloni for Is there a specific name for matrices with nonsingular principal submatrices? Federico Poloni 2009-11-18T18:31:30Z 2009-11-18T18:31:30Z <p>I've heard them called "strongly nonsingular matrices" in numerical linear algebra. Google that and you'll find some literature.</p>