Supplements to known monotonicity results and inequalities for the gamma and incomplete gamma functions
Journal of Inequalities and Applications volume 2006, Article number: 48727 (2006)
We denote by and the gamma and the incomplete gamma functions, respectively. In this paper we prove some monotonicity results for the gamma function and extend, to, a lower bound established by Elbert and Laforgia (2000) for the function, with, only for.
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Laforgia, A., Natalini, P. Supplements to known monotonicity results and inequalities for the gamma and incomplete gamma functions. J Inequal Appl 2006, 48727 (2006). https://doi.org/10.1155/JIA/2006/48727