Complete monotonicity of a difference between the exponential and trigamma functions
Classical Analysis and ODEs
2014-06-04 v1
Abstract
In the paper, by directly verifying an inequality which gives a lower bound for the first order modified Bessel function of the first kind, the authors supply a new proof for the complete monotonicity of a difference between the exponential function and the trigamma function on .
Keywords
Cite
@article{arxiv.1303.1582,
title = {Complete monotonicity of a difference between the exponential and trigamma functions},
author = {Feng Qi and Xiao-Jing Zhang},
journal= {arXiv preprint arXiv:1303.1582},
year = {2014}
}
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4 pages