Mathematical Inequalities & Applications · Volume 23, Issue 2 On a convexity problem with applications to Mastroianni type operators 23-64 Pages 765-773 DOI 10.7153/mia-2020-23-64 Downloads Short PDF Full PDF PNG Authors Bogdan Gavrea Keywords linear positive operators convex functions Bernstein operators Mastroianni operators Subject classes 26D15 26D10 46N30