New approximations for the numerical radius of an n×n operator matrix
DARWEESH, Amer Hasan; ALMALKI, Adel; AL-KHALED, Kamel.
New approximations for the numerical radius of an n×n operator matrix.
International Journal of Electrical and Computer Engineering (IJECE), [S.l.], v. 15, n. 5, p. 4732-4739, oct. 2025.
ISSN 2722-2578.
Available at: <https://ijece.iaescore.com/index.php/IJECE/article/view/37812/18442>. Date accessed: 14 sep. 2025.
doi:http://doi.org/10.11591/ijece.v15i5.pp4732-4739.