کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4602323 1631167 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bidiagonal factorizations and quasi-oscillatory rectangular matrices
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات اعداد جبر و تئوری
پیش نمایش صفحه اول مقاله
Bidiagonal factorizations and quasi-oscillatory rectangular matrices
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Linear Algebra and its Applications - Volume 429, Issues 8–9, 16 October 2008, Pages 1886-1893