N. S., Minikumari; K. G., Sreekumar; ELSAYED, Elsayed M.; J. P., Linda; B., Rajeswari. $M^{*}$-matrices: Tridiagonal structure and signature similarity to $M$-matrices. Journal of Algebra Combinatorics Discrete Structures and Applications, [S. l.], v. 13, n. 3, p. 409–421, 2026. DOI: 10.13069/jacodesmath.v13i3.446. Disponível em: https://www.jacodesmath.com/index.php/jacodesmath/article/view/446. Acesso em: 12 sep. 2026.