Journal of Mathematical Inequalities · Volume 17, Issue 4 Sharped Jordan's type inequalities with exponential approximations 17-101 Pages 1539-1550 DOI 10.7153/jmi-2023-17-101 Downloads Short PDF Full PDF PNG Authors Nachi Kasuga Mai Nakasuji Yusuke Nishizawa Takuma Sekine Keywords Jordan's inequality trigonometric function exponential function monotonically decreasing function monotonically increasing function Subject classes 26D05 26D07 33B10