Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Mathematics
Nonnegative Matrices Whose Inverses Are M-Matrices, Thomas L. Markham
Nonnegative Matrices Whose Inverses Are M-Matrices, Thomas L. Markham
Faculty Publications
A characterization of a class of totally nonnegative matrices whose inverses are M-matrices is given. It is then shown that if A is nonnegative of order n and A^-1 is an M-matrix, then the almost principal minors of A of all orders are nonnegative.