Journal of Mathematical Inequalities · Volume 14, Issue 3 An elementary three-variable inequality with constraints for the power function of the norms on some metric spaces 14-40 Pages 631-640 DOI 10.7153/jmi-2020-14-40 Downloads Short PDF Full PDF PNG Authors Zheng Li Tie Zhang Chang-Jun Li Keywords three-variable inequality triangle inequality Jensen's inequality Clarkson's inequality inequality for the power function of the norm Subject classes 26D15 39B62