Mathematical Inequalities & Applications · Volume 18, Issue 2 Properties of modified Bessel functions and completely monotonic degrees of differences between exponential and trigamma functions 18-37 Pages 493-518 DOI 10.7153/mia-18-37 Downloads Short PDF Full PDF PNG Authors Feng Qi Keywords completely monotonic degree completely monotonic function difference exponential function trigamma function modified Bessel function of the first kind property inequality monotonicity convexity unimodality Subject classes 26A12 26A48 26A51 26D15 30D10 30E20 33B10 33B15 33C20 42B10 44A10