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- W2057375254 abstract "A real matrix A , of size m × n , is called totally nonnegative (totally positive) if all its minors are nonnegative (positive). A variant of the Neville elimination process is studied in relation to the existence of a totally nonnegative elementary bidiagonal factorization of A . The class of quasi- oscillatory rectangular matrices, which in the square case contains the oscillatory matrices, is introduced and a characterization of this class of matrices, by incorporating bidiagonal factorization, is showed." @default.
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- W2057375254 date "2008-10-01" @default.
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- W2057375254 title "Bidiagonal factorizations and quasi-oscillatory rectangular matrices" @default.
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- W2057375254 doi "https://doi.org/10.1016/j.laa.2008.05.030" @default.
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