On nonsingular acyclic M-matrices whose inverse is also acyclic

Du, ZB; da Fonseca, CM; Losonczi, L

da Fonseca, CM (corresponding author), Kuwait Coll Sci & Technol, Block 4,POB 27235, Safat 13133, Kuwait.

REVISTA DE LA REAL ACADEMIA DE CIENCIAS EXACTAS FISICAS Y NATURALES SERIE A-MATEMATICAS, 2020; 114 (3):

Abstract

In this note, we generalize an interesting recent characterization of tridiagonal M-matrices whose inverse is still tridiagonal to any acyclic matrix.......

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