Gasso Matoses, María TeresaGil, IvanGimenez Manglano, María IsabelSantana-De Asis, Máximo De JesúsSegura, Elaine2022-01-102022-01-102021-010716-0917https://riunet.upv.es/handle/10251/179432[EN] The study of the diagonal entries of the combined matrix of a nonsingular matrix A has been considered by different authors for the classes of Mmatrices, positive definite matrices and totally positive (negative) matrices. This problem appears to be difficult as the results have been done only for matrices of order three. In this work, we continue to give the characterization ofthe diagonal entries ofthe combined matrix ofthe remainder sign regular matrices. Thus, the problem is closed for all possible sign regular matrices of order three.Reconocimiento (by)Sign regula r matricesCombined matricesHad amard productMATEMATICA APLICADAArtículo10.22199/issn.0717-6279-2021-01-0016Abierto