Ela on the M – Matrix Inverse Problem for Singular and Symmetric Jacobi Matrices
نویسنده
چکیده
A well–known property of an irreducible singular M–matrix is that it has a generalized inverse which is non–negative, but this is not always true for any generalized inverse. The authors have characterized when the Moore–Penrose inverse of a symmetric, singular, irreducible and tridiagonal M–matrix is itself an M–matrix. We aim here at giving new explicit examples of infinite families of matrices with order up to 4 having this property.
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