Adm, Mohammad; Almuhtaseb, Khawla; Abedel Ghani, Ayed; Garloff, Jürgen
(Electronic Journal of Linear Algebra, 2020-03-27)
Totally nonnegative matrices, i.e., matrices having all their minors nonnegative, and matrix intervals with respect to the checkerboard partial order are considered. It is proven that if the two bound matrices of such a ...