Mathematical Inequalities & Applications · Volume 23, Issue 1 Subadditive inequalities for operators 23-24 Pages 317-327 DOI 10.7153/mia-2020-23-24 Downloads Short PDF Full PDF PNG Authors Hamid Reza Moradi Zahra Heydarbeygi Mohammad Sababheh Keywords operator inequality operator convex functions positive operator Subject classes 47A63 47A64 47B65 15A60