Journal of Mathematical Inequalities · Volume 15, Issue 1 A family of Wilker's inequalities in two parameters and its applications 15-31 Pages 421-441 DOI 10.7153/jmi-2021-15-31 Downloads Short PDF Full PDF PNG Authors Xiao-Diao Chen Kang Yang Sijie Gong Ling Zhu Keywords Wilker's inequality tighter bounds reparameterization trigonometric function two-parameter function Subject classes 26D15 41A10 42A16