GEORGIAN MATHEMATICAL JOURNAL, cilt.28, sa.3, ss.439-443, 2021 (SCI-Expanded)
Recently, some authors have established a number of inequalities involving the minimum eigen-value for the Hadamard product of M-matrices. In this paper, we improve these results and give some new lower bounds on the minimum eigenvalue for the Hadamard product of an M-matrix A and its inverse A(-1). Finally, it is shown by the numerical examples that our bounds are also better than some previous results.