Mathematical Inequalities & Applications · Volume 26, Issue 4 Discrete Opial type inequalities for interval-valued functions 26-49 Pages 811-826 DOI 10.7153/mia-2023-26-49 Downloads Short PDF Full PDF PNG Authors Dafang Zhao Xuexiao You Delfim F. M. Torres Keywords discrete Opial type inequalities gH-difference operators interval-valued functions Subject classes 26D15 26E50 65G30