Journal of Mathematical Inequalities · Volume 17, Issue 3 Quasi-convex and Q-class functions 17-57 Pages 893-908 DOI 10.7153/jmi-2023-17-57 Downloads Short PDF Full PDF PNG Authors Hamid Reza Moradi Shigeru Furuichi Mohammad Sababheh Keywords quasi-convex Q-class function Schur function Jensen inequality Jensen-Mercer inequality Subject classes 26A51 39B62 26D15 26D07