Mathematical Inequalities & Applications · Volume 27, Issue 2 On the numerical radius of an operator matrix 27-29 Pages 417-434 DOI 10.7153/mia-2024-27-29 Downloads Short PDF Full PDF PNG Authors Mohammad Sababheh Cristian Conde Hamid Reza Moradi Keywords numerical radius operator norm operator matrix inequalities cartesian decomposition Subject classes 47A12 47A30 15A60 47B49