Journal of Mathematical Inequalities · Volume 15, Issue 4 Sharp power mean bounds for the tangent and hyperbolic sine means 15-100 Pages 1459-1472 DOI 10.7153/jmi-2021-15-100 Downloads Short PDF Full PDF PNG Authors Tie-Hong Zhao Yuming Chu Wei-Mao Qian Keywords power mean hyperbolic sine mean tangent mean Seiffert function Subject classes 26D15